Solved papers for BHU PMT BHU PMT (Mains) Solved Paper-2009

done BHU PMT (Mains) Solved Paper-2009 Total Questions - 200

• question_answer1) In a double slit experiment \[D=1\text{ }m,\text{ }d=0.2cm\] and \[\lambda =6000\,\overset{\text{o}}{\mathop{\text{A}}}\,\] . The distance of the point from the central maximum where intensity is 75% of that at the centre will be
  A)
   0.01 mm             
  done clear
  B)
   0.03 mm
  done clear
  C)
   0.05 mm             
  done clear
  D)
   0.1 mm
  done clear
  View Answer play_arrow

• question_answer2) The transfer ratio p of a transistor is 50. The input resistance of the transistor when used in the common emitter mode is\[1\,k\Omega \]. The peak value of the collector alternating current for an input peak voltage of 0.01 V is
  A)
  \[100\text{ }\mu A\]                     
  done clear
  B)
   \[\text{500 }\mu A\]
  done clear
  C)
   \[0.01\text{ }\mu A\]                   
  done clear
  D)
   \[0.25\text{ }\mu A\]
  done clear
  View Answer play_arrow

• question_answer3) The recoil speed of a hydrogen atom after it emits a photon in going from\[n=5\]state to\[n=1\]state is
  A)
  \[4.718\text{ }m{{s}^{-1}}\]        
  done clear
  B)
  \[7.418\text{ }m{{s}^{-1}}\]
  done clear
  C)
   \[4.178\text{ }m{{s}^{-1}}\]      
  done clear
  D)
   \[7.148\text{ }m{{s}^{-1}}\]
  done clear
  View Answer play_arrow

• question_answer4) Ultraviolet light wavelength 300 nm and intensity\[1.0\text{ }W{{n}^{-2}}\]falls on the surface of a photoelectric material. If one percent of the incident photons produce photoelectrons, then the number of photoelectrons emitted per second from an area of\[1.0\text{ }c{{m}^{2}}\]of the surface is nearly
  A)
   \[9.61\times {{10}^{14}}\]          
  done clear
  B)
   \[4.12\times {{10}^{13}}\]
  done clear
  C)
   \[1.51\times {{10}^{12}}\]          
  done clear
  D)
   \[2.13\times {{10}^{11}}\]
  done clear
  View Answer play_arrow

• question_answer5) An LCR series circuit containing a resistance of \[120\Omega \] has angular resonance frequency \[4\times {{10}^{5}}\]rad\[{{s}^{-1}}\]. At resonance the voltage across resistance and inductance are 60 V and 40 V respectively. The values of L and C are
  A)
   \[0.2mH,\frac{1}{32}\mu F\]     
  done clear
  B)
   \[0.4mH,\frac{1}{16}\mu F\]
  done clear
  C)
   \[0.2mH,\frac{1}{16}\mu F\]    
  done clear
  D)
   \[0.4\,mH,\frac{1}{32}\mu F\]
  done clear
  View Answer play_arrow

• question_answer6) A toroidal solenoid with an air core has an average radius of 15 cm, area of cross-section 12cm and 1200 turns. Ignoring the field variation across the cross-section of the toroid, the self-inductance of the toroid is
  A)
   4.6 mH                
  done clear
  B)
   6.9 mH
  done clear
  C)
   2.3 mH                
  done clear
  D)
   9.2 mH
  done clear
  View Answer play_arrow

• question_answer7) Each atom of an iron bar\[(5\text{ }cm\times 1\text{ }cm\times 1\text{ }cm)\] has a magnetic moment\[1.8\times {{10}^{-23}}A{{m}^{2}}\]. Knowing that the density of iron is \[7.78\times {{10}^{3}}kg\text{ }{{m}^{-3}},\]atomic weight is 56 and Avogadro's number is\[6.02\times {{10}^{23}}\]the magnetic moment of bar in the state of magnetic saturation will be
  A)
   \[4.75\text{ }A{{m}^{2}}\]          
  done clear
  B)
  \[5.74\text{ }A{{m}^{2}}\]
  done clear
  C)
   \[7.54\text{ }A{{m}^{2}}\]          
  done clear
  D)
  \[75.4\text{ }A{{m}^{2}}\]
  done clear
  View Answer play_arrow

• question_answer8) A current of 1 A is flowing on the sides of an equilateral triangle of sides\[4.5\times {{10}^{-2}}\text{ }m\]. The magnetic field at the centroid of the triangle is
  A)
   \[2\times {{10}^{-5}}T\]                              
  done clear
  B)
   \[4\times {{10}^{-5}}T\]
  done clear
  C)
    \[8\times {{10}^{-5}}T\]                             
  done clear
  D)
   \[1.2\times {{10}^{-4}}T\]
  done clear
  View Answer play_arrow

• question_answer9) The given four terminal network is part of a larger circuit. The points A, B, C are at the same potential. The potential difference between any one of A, B or C and D is 40 V. The potential difference between A and O is
  A)
   10V                                      
  done clear
  B)
   15V
  done clear
  C)
   18V                                      
  done clear
  D)
   20V
  done clear
  View Answer play_arrow

• question_answer10) A charged dust particle of radius\[5\times {{10}^{-7}}m\]is located in a horizontal electric field having an intensity of\[6.28\times {{10}^{5}}V{{m}^{-1}}\]. The surrounding medium is air with coefficient of viscosity\[\eta =1.6\times {{10}^{-5}}N-s{{m}^{-2}}\]. If this particle moves with a uniform horizontal speed\[0.02\,m{{s}^{-1}}\]. Find the number of electrons on it.
  A)
   10                                         
  done clear
  B)
   20
  done clear
  C)
   30          
  done clear
  D)
   40
  done clear
  View Answer play_arrow

• question_answer11) A and B are two points on a uniform metal ring whose centre is 0. The angle \[AOB=\theta \]  A and B are maintained at two different constant temperatures. When\[\theta =180{}^\circ ,\]the rate of total heat flow from A to B is 1.2 W. When\[\theta =90{}^\circ ,\]this rate will be
  A)
   0.6 W                   
  done clear
  B)
   0.9 W
  done clear
  C)
   1.6W                                    
  done clear
  D)
   1.8W
  done clear
  View Answer play_arrow

• question_answer12) 1 g of water on evaporation at atmospheric pressure forms\[1671\text{ }c{{m}^{3}}\]of steam. Heat of vaporisation at this pressure is\[540\text{ }cal\text{ }{{g}^{-1}}\]. The increase in internal energy is
  A)
   250 cal                 
  done clear
  B)
   500 cal
  done clear
  C)
   1000 cal              
  done clear
  D)
   1500 cal
  done clear
  View Answer play_arrow

• question_answer13) In a hall, a person receives direct sound waves from a source 120 m away. He also receives waves from the same source which reach him after being reflected from the 25 m high ceiling at a point half-way between them. The two waves interfere constructively for wavelengths (in metre) of
  A)
   \[10,5,\frac{5}{2}\]                        
  done clear
  B)
   \[20,\frac{20}{3},\frac{20}{5}.....\]
  done clear
  C)
   \[30,20,10.....\]               
  done clear
  D)
   \[35,25,15.....\]
  done clear
  View Answer play_arrow

• question_answer14) The block A in figure weighs 100 N. The coefficient of static friction between the block and table is 0.25. The maximum weight of block B for which the system is in equilibrium is
  A)
   25 N                                     
  done clear
  B)
   30 N
  done clear
  C)
   35 N                                     
  done clear
  D)
   40 N
  done clear
  View Answer play_arrow

• question_answer15) The relative density of a material may be found by weighing it first in air and then in water. If its weight in air is (5.00 ± 0.05) N and weight in water is (4.00 ± 0.05) N. Then the relative density along with maximum permissible error will be quoted as
  A)
   5.0 ± 11%           
  done clear
  B)
   5.0 ± 6%
  done clear
  C)
   5.0 ± 1%             
  done clear
  D)
   1.25 ± 5%
  done clear
  View Answer play_arrow

• question_answer16) A parachutist drops freely from an airplane for 10 s before the parachute opens. He then descends with a uniform retardation of 2.5 \[m{{s}^{-2}}\]. If he bails out of the plane at a height of 2495 m and g is\[10\text{ }m{{s}^{-2}},\] his velocity on reaching the ground will be
  A)
   \[5m{{s}^{-1}}\]                              
  done clear
  B)
   \[10\,m{{s}^{-1}}\]
  done clear
  C)
   \[15m{{s}^{-1}}\]                           
  done clear
  D)
   \[20\,m{{s}^{-1}}\]
  done clear
  View Answer play_arrow

• question_answer17) A man crosses a 320 m wide river perpendicular to the current in 4 min. If in still water he can swim with a speed 5/3 times that of the current, then the speed of the current, in\[m{{m}^{-1}}\]in is
  A)
   30                                         
  done clear
  B)
   40
  done clear
  C)
   50                                         
  done clear
  D)
   60
  done clear
  View Answer play_arrow

• question_answer18) An aeroplane is flying in a horizontal direction with a velocity of\[600\text{ }km{{h}^{-1}}\]and at a height of 1960 m. When it is vertically above the point A, on the ground, a body is dropped from it. The body strikes the ground at point B. Then distance AB is
  A)
   5.8 km                                 
  done clear
  B)
   4.7 km
  done clear
  C)
   3.3 km                                 
  done clear
  D)
   2.0 km
  done clear
  View Answer play_arrow

• question_answer19) A horizontal heavy uniform bar of weight W is supported at its ends by two men. At the instant, one of the men lets go off his end of the rod, the other feels the force on his hand changed to
  A)
   w                                          
  done clear
  B)
   w/2
  done clear
  C)
   3w/4                                    
  done clear
  D)
   w/4
  done clear
  View Answer play_arrow

• question_answer20) The speed with which the earth have to rotate on its axis so that a person on the equator would weigh\[{{(3/5)}^{th}}\] as much as present. [Radius of earth = 6400 km]
  A)
   \[4.83\times {{10}^{-3}}rad\,{{s}^{-1}}\]              
  done clear
  B)
   \[5.41\times {{10}^{-3}}rad\,{{s}^{-1}}\]
  done clear
  C)
   \[7.82\times {{10}^{-4}}rad\,{{s}^{-1}}\]              
  done clear
  D)
   \[8.88\times {{10}^{-14}}rad\,{{s}^{-1}}\]
  done clear
  View Answer play_arrow

• question_answer21) The rate of flow of glycerine of density\[1.25\times \] \[{{10}^{3}}kg{{m}^{-3}}\]through the conical section of a pipe if the radii of its ends are 0.1 m and 0.04 m and the pressure drop across its length \[10\text{ }N{{m}^{-2}}\]is
  A)
   \[6.93\times {{10}^{-4}}{{m}^{3}}{{s}^{-1}}\]     
  done clear
  B)
  \[7.8\times {{10}^{-4}}{{m}^{3}}{{s}^{-1}}\]
  done clear
  C)
   \[10.4\times {{10}^{-5}}{{m}^{3}}{{s}^{-1}}\]     
  done clear
  D)
  \[14.5\times {{10}^{-5}}{{m}^{3}}{{s}^{-1}}\]
  done clear
  View Answer play_arrow

• question_answer22) A magnetic field is applied perpendicular to the plane of a flat coil of coppered wire. The time variation of the magnetic flux density is given by\[{{B}_{0}}\sin (2\pi t/T),\]as shown graphically in the figure. At which of the following values of t is the magnitude of the emf induced in the coil is maximum?
  A)
   \[\frac{T}{8}\]                                  
  done clear
  B)
   \[\frac{T}{4}\]
  done clear
  C)
    \[\frac{3T}{8}\]                                              
  done clear
  D)
   \[\frac{T}{2}\]
  done clear
  View Answer play_arrow

• question_answer23) System shown in the figure is released from rest with mass 2 kg in contact with ground. Pulley and spring are massless and the friction is absent everywhere. The speed of 5 kg block when 2 kg block leaves the contact with the ground is (force   constant   of   spring k = 40 \[N{{m}^{-1}}\]and\[g=10\text{ }m{{s}^{-2}}\])
  A)
   \[\sqrt{2}\,m{{s}^{-1}}\]                             
  done clear
  B)
  \[2\sqrt{2}\,m{{s}^{-1}}\]
  done clear
  C)
   \[2\,m{{s}^{-1}}\]                          
  done clear
  D)
  \[4\sqrt{2}\,m{{s}^{-1}}\]
  done clear
  View Answer play_arrow

• question_answer24) If the intermolecular forces vanish away, the volume occupied by the molecules contained in 4.5 kg water of NTP will be given by
  A)
   \[5.6\,{{m}^{3}}\]                          
  done clear
  B)
  \[4.5\,{{m}^{3}}\]
  done clear
  C)
   \[11.2\,{{m}^{3}}\]                        
  done clear
  D)
   5.6L
  done clear
  View Answer play_arrow

• question_answer25) In a Young's double slit experiment, the source slit S, and the two slits A and B are horizontal. With slit A above B, the fringes are observed on a vertical screen k. The optical path length from S to B is increased very slightly (by introducing a transparent material of higher refractive index) and the optical path length from S to A is not changed. As a result the fringe system on k moves
  A)
   vertically downward slightly
  done clear
  B)
   vertically upwards slightly
  done clear
  C)
   horizontally slightly to the left
  done clear
  D)
   horizontally slightly to the right
  done clear
  View Answer play_arrow

• question_answer26) Which of the following are diamagnetic substances? (1) Water                             (2) Bismuth (3) Copper          (4) Calcium
  A)
   1, 2 and 3 are correct
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
    2 and 4 are correct
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer27) When photons of energy 4.25 eV strike the surface of metal A, the ejected photoelectrons have maximum kinetic energy, \[{{T}_{A}}\]eV and de-Broglie wavelength\[{{\lambda }_{A}}\]. The maximum kinetic energy of photoelectrons liberated from another metal B by photons of energy 4.70 eV is\[{{T}_{B}}=({{T}_{A}}-1.50)eV\]. If the de-Broglie wave- length of these photoelectrons is \[{{\lambda }_{B}}=2{{\lambda }_{A}},\] then (1) the work function of A is 2.25 eV (2) the work function of B is 4.20 eV (3)\[{{T}_{A}}=2.00\text{ }eV\] (4) \[{{T}_{B}}=2.75\text{ }eV\]
  A)
   1, 2 and 3 are correct
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
    2 and 4 are correct
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer28) If two orthogonal SHM of same frequency having initial phase difference of n/2 acts simultaneously on a particle free to move, the particle can move in a (1) straight line                  (2) circle (3) parabola                        (4) ellipse
  A)
   1, 2 and 3 are correct
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
    2 and 4 are correct
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer29) In Young's double slit experiment, the interference pattern is found to have an intensity ratio between bright and dark fringe as 9. This implies (1) the intensities at the screen due to the two slits are 5 and 4 units (2) the intensities at the screen due to the two slits are 4 and 1 units (3) the amplitude ratio is 3 (4) the amplitude ratio is 2
  A)
   1, 2 and 3 are correct
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
    2 and 4 are correct
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer30) In the circuit shown in figure (1) the charge on\[{{C}_{2}}\]is greater than on \[{{C}_{1}}\] (2) the charges on\[{{C}_{1}}\]and\[{{C}_{2}}\]are same (3) potential difference across\[{{C}_{1}}\]and\[{{C}_{2}}\]are same (4) potential difference across\[{{C}_{1}}\]is greater than across\[{{C}_{2}}\]
  A)
   1, 2 and 3 are correct
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
    2 and 4 are correct
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer31) Two blocks A and B each of mass m are connected by massless spring of natural length L and spring constant k. The blocks are initially resting on a smooth horizontal floor with the spring at its natural length as shown in figure. A third identical block C also of mass m moves on the floor with a speed v along the line joining A and B and collides elastically with A, then (1) the maximum compression of the Spring is \[v\sqrt{m/k}\] (2) the maximum compression of the spring is \[v\sqrt{m/2k}\] (3) the kinetic energy of the A-B system at maximum compression of the spring is zero (4) the kinetic energy of the A-B system at maximum compression of the spring is\[\frac{m{{v}^{2}}}{4}\]
  A)
   1, 2 and 3 are correct
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
    2 and 4 are correct
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer32) A gas undergoes the change in its state from position A to position B via three different paths as shown in figure. Select the correct alternative (s). (1) temperature of the gas first increases and then decreases continuously in path 1 (2) heat absorbed/released by the gas is maximum in path 1 (3) change in internal energy in all the three paths is equal (4) in all the three paths heat is absorbed by the gas
  A)
   1, 2 and 3 are correct
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
    2 and 4 are correct
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer33) The magnitudes of gravitational field at distance\[{{r}_{1}}\]and\[{{r}_{2}}\]from the centre of a uniform solid sphere of radius R and mass M are\[{{F}_{1}}\]and\[{{F}_{2}}\]respectively. Then (1) \[\frac{{{F}_{1}}}{{{F}_{2}}}=\frac{{{r}_{1}}}{{{r}_{2}}};if\,{{r}_{1}}<R\,and\,\,{{r}_{2}}<R\] (2) \[\frac{{{F}_{1}}}{{{F}_{2}}}=\frac{r_{2}^{2}}{r_{1}^{2}};if\,{{r}_{1}}>R\,and\,\,{{r}_{2}}>R\] (3) \[\frac{{{F}_{1}}}{{{F}_{2}}}=\frac{{{r}_{1}}}{{{r}_{2}}};if\,{{r}_{1}}>R\,and\,\,{{r}_{2}}>R\] (4) \[\frac{{{F}_{1}}}{{{F}_{2}}}=\frac{r_{1}^{2}}{r_{2}^{2}};if\,{{r}_{1}}<R\,and\,\,{{r}_{2}}<R\]
  A)
   1, 2 and 3 are correct
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
    2 and 4 are correct
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer34) Resolving power of reflecting type telescope increases with (1) decrease in wavelength of incident light (2) increase in wavelength of incident light (3) increase in diameter of objective mirror (4) None of the above
  A)
   1, 2 and 3 are correct
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
    2 and 4 are correct
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer35) A particle leaves the origin with an initial velocity\[\overrightarrow{u}=(3\hat{i})m{{s}^{-1}}\]and at a constant acceleration\[\overrightarrow{a}=(-1.0\hat{i}-0.5\hat{j})m{{s}^{-2}}\]. Its velocity v and position vector\[\overrightarrow{r}\]when it reaches its maximum\[x-\]coordinate are (1) \[v=-2\hat{j}m{{s}^{-1}}\] (2) \[v=(-1.5\hat{j})m{{s}^{-1}}\] (3) \[\overrightarrow{r}=(4.5\hat{i}-1.25\hat{j})m\] (4) \[\overrightarrow{r}=(4.5\hat{i}-2.25\hat{j})m\]
  A)
   1, 2 and 3 are correct
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
    2 and 4 are correct
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer36) Two different coils have self-inductances, \[{{L}_{1}}=8\,mH\]and\[{{L}_{2}}=2\,mH\]. The current in one coil is increased at a constant rate. The current in the second coil is also increased at the same constant rate. At a certain instant of time, the power is given to the two coils is the same. At that time, the current, the induced voltage and the energy stored in the first coil are\[{{i}_{1}},{{V}_{1}}\]and\[{{W}_{1}}\]respectively. Corresponding values for the second coil at the same instant are\[{{i}_{2}},{{V}_{2}}\]and\[{{W}_{2}}\]respectively. Then  \[\frac{{{i}_{1}}}{{{i}_{2}}}=\frac{1}{4}\]                                \[\frac{{{V}_{1}}}{{{V}_{2}}}=4\]  \[\frac{{{W}_{1}}}{{{W}_{2}}}=\frac{1}{4}\]                         (4) \[\frac{{{i}_{1}}}{{{i}_{2}}}=4\]
  A)
   1, 2 and 3 are correct
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
    2 and 4 are correct
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer37) At ordinary temperatures, the molecules of an ideal gas have only translational and rotational kinetic energies. At high temperatures they may also have vibrational energy. As a result of this at higher temperatures (\[{{C}_{v}}=\]molar heat capacity at constant volume) (1)\[{{C}_{V}}=\frac{3}{2}R\]fora monoatomic gas (2)\[{{C}_{V}}=\frac{3}{2}R\]for a monoatomic gas (3)\[{{C}_{V}}>\frac{5}{2}R\]for a diatomic gas (4)\[{{C}_{V}}>\frac{5}{2}R\] for a diatomic gas
  A)
   1, 2 and 3 are correct
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
    2 and 4 are correct
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer38) Let\[\overline{v},{{v}_{rms}}\]and\[{{v}_{mp}}\]respectively denote the mean speed, root mean square speed, and most probable speed of the molecules in an ideal monoatomic gas at absolute temperature T. The mass of a molecule is m. Then (1) \[{{v}_{mp}}<\overline{v}<{{v}_{rms}}\] (2) no molecule can have a speed greater than \[\sqrt{2}{{v}_{rms}}\] (3) the average kinetic energy of a molecule is \[\frac{3}{4}mv_{mp}^{2}\] (4) no molecule can have a speed less than \[{{v}_{mp}}/\sqrt{2}\]
  A)
   1, 2 and 3 are correct
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
    2 and 4 are correct
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer39) A charged particle enters into a region which offers a resistance against its motion and uniform magnetic field exists in the region. The particle traces a spiral path as shown in the figure. Which of the following statements is/are correct? (1) Component of the magnetic field in the plane of spiral is zero (2) Particle enters from region at Q (3) If the magnetic field is outward then the particle is positively charged (4) Since force exerted by magnetic field is always normal to the direction of motion, therefore, its angular momentum remains unchanged
  A)
   1, 2 and 3 are correct
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
    2 and 4 are correct
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer40) Four identical electrical lamps are labelled 1.5 V, 0.5 A which describes the condition necessary for them to operate at normal brightness. A 12V battery of negligible internal resistance is connected to lamps as shown then (1) the value of R for normal brightness of each lamp is\[(3/4)\Omega \] (2) the value of R for normal brightness of each lamp is \[(21/4)\Omega \] (3) total power dissipated in circuit when all lamps are normally bright is 24 W. (4) power dissipated in R is 21 W when all lamps are normally bright
  A)
   1, 2 and 3 are correct
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
    2 and 4 are correct
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer41) The distance between two point object P and Q is 32 cm. A convex lens of focal length 15 cm is placed between them, so that the images of both the objects are formed at the same place. The distance of? from the lens could be (1) 20 cm                              (2) 12 cm (3) 18 cm                              (4) 16 cm
  A)
   1, 2 and 3 are correct
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
    2 and 4 are correct
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer42) Two bodies A and B have thermal emissivities of 0.01 and 0.81, respectively. The outer surface areas of two bodies are the same. The two bodies emit total radiant power at the same rate. The wavelength\[{{\lambda }_{B}}\]corresponding to maximum spherical spectral radiance in the radiation from B is shifted from the wavelength corresponding to the maximum spectral radiance in radiation A by\[1.00\,\mu m\]. If the temperature of A is 5802 K, then (1) the temperature of B is 1934 K (2) \[{{\lambda }_{B}}=1.5\,\mu m\] (3) the temperature of B is 11604 K (4) the temperature of B is 2901 K
  A)
   1, 2 and 3 are correct
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
    2 and 4 are correct
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer43) A uniform cylinder of steel of mass M, radius R is placed on frictionless bearings and set to rotate about its vertical axis with angular velocity\[{{\omega }_{0}}\]. After the cylinder has reached the specified state of rotation. It is heated without any mechanical contact from temperature\[{{T}_{0}}\]to\[{{T}_{0}}+\Delta T\]. If\[\frac{\Delta I}{I}\]is the fractional change in moment of inertia of the cylinder and \[\frac{\Delta \omega }{{{\omega }_{0}}}\]be the fractional change in the angular velocity of the cylinder and a be the coefficient of linear expansion, then (1) \[\frac{\Delta I}{I}=\frac{2\Delta R}{R}\]                         (2) \[\frac{\Delta I}{I}=\frac{\Delta \omega }{{{\omega }_{0}}}\] (3) \[\frac{\Delta \omega }{{{\omega }_{0}}}=-2\alpha \Delta T\]              (4) \[\frac{\Delta I}{I}=\frac{2\Delta R}{R}\]
  A)
   1, 2 and 3 are correct
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
    2 and 4 are correct
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer44) To get an output\[Y=1\]from circuit of figure, the inputs must be A             B             C (1)          0              1              0 (2)          0              1              1 (3)          1              0              0 (4)          1              0              1
  A)
   1, 2 and 3 are correct
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
    2 and 4 are correct
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer45) If E denotes electric field in a uniform conductor, I corresponding current through it, \[{{v}_{d}}\]drift velocity of electrons and P denotes thermal power produced in the conductor, then which of the following graphs is/are correct? (1)        (2) (3)           (4)
  A)
   1, 2 and 3 are correct
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
    2 and 4 are correct
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer46) Two particles are projected from the same point with the same speed at different angles \[{{\theta }_{1}}\]and\[{{\theta }_{2}}\]to horizontal. Their times of flight are\[{{t}_{1}}\]and\[{{t}_{2}}\]and they have same horizontal range. Then (1) \[\frac{{{t}_{1}}}{{{t}_{2}}}=\tan {{\theta }_{1}}\]                       (2) \[{{\theta }_{1}}+{{\theta }_{2}}={{90}^{o}}\] (3) \[\frac{{{t}_{1}}}{\sin {{\theta }_{1}}}=\frac{{{t}^{2}}}{\sin {{\theta }_{2}}}\]  (4) \[\frac{{{t}_{1}}}{{{t}_{2}}}=\tan {{\theta }_{2}}\]
  A)
   1, 2 and 3 are correct
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
    2 and 4 are correct
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer47) The pair of physical quantities that have the same dimensions are (1) Reynold number and coefficient of friction (2) Curie and frequency of light wave (3) Latent heat and gravitational potential (4) Planck's constant and torque
  A)
   1, 2 and 3 are correct
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
    2 and 4 are correct
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer48) A particle of mass m is moved from the surface of the earth to a height h. The work done by an external agency to do this is (1) \[mgh\text{ }for\text{ }h<<R\]           (2) \[mgh\] for all h (3) \[\frac{1}{2}\text{mgh}\,for\text{ }h=R\]      (4)\[-\frac{1}{2}\text{mgh}\,for\text{ }h=R\]
  A)
   1, 2 and 3 are correct
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
    2 and 4 are correct
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer49) A simple pendulum of length L and mass (bob) M is oscillating in a plane about a vertical line between angular limits\[-\phi \] and\[+\phi \]. For on angular displacement\[\theta (|\phi |<\phi ),\]the tension the string and the velocity of the bob ar T and respectively. The following relations hold good (1)\[T=mg\,\cos \theta =(M{{v}^{2}})/L\] (2)\[T\,\cos \theta =Mg\] (3) The   magnitude   of   the   tangential acceleration of the bob \[|{{a}_{T}}|=g\sin \theta \] (4) \[T=Mg\text{ }cos\theta \]
  A)
   1, 2 and 3 are correct
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
    2 and 4 are correct
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer50) The torque required to produce a unit twist in a rod of length Z and radius r is (1) directly proportional to\[{{r}^{2}}\] (2) directly proportional to\[{{r}^{4}}\] (3) inversely proportional to\[{{r}^{2}}\] (4) inversely proportional to \[l\]
  A)
   1, 2 and 3 are correct
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
    2 and 4 are correct
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer51) In the following reaction sequence, \[A\xrightarrow{PC{{l}_{5}}}B+C,\]\[B\xrightarrow[LiAl{{H}_{4}}]{(i)Pb/BaS{{O}_{4}}}{{(C{{H}_{3}})}_{2}}CHC{{H}_{2}}OH\xleftarrow[{}]{Aq.\,KOH}C\]the compound 'A' is
  A)
  \[{{(C{{H}_{3}})}_{2}}CHC{{H}_{2}}COOCH{{(C{{H}_{3}})}_{2}}\]
  done clear
  B)
  \[{{(C{{H}_{3}})}_{2}}CHCOOC{{H}_{2}}CH{{(C{{H}_{3}})}_{2}}\]
  done clear
  C)
  \[{{(C{{H}_{3}})}_{2}}CHCOO{{C}_{2}}{{H}_{5}}\]
  done clear
  D)
   None of the above
  done clear
  View Answer play_arrow

• question_answer52) The correct order of\[p{{K}_{a}}\]value of the given carboxylic acids is
  A)
   (iii) < (i) < (iv) < (ii)
  done clear
  B)
   (ii) < (iv) < (i) < (iii)
  done clear
  C)
    (iv) < (ii) < (i) < (iii)
  done clear
  D)
   (iii) < (i) < (ii) < (iv)
  done clear
  View Answer play_arrow

• question_answer53) In an experiment, 0.04F was passed, through 400 mL of a 1 M solution of sodium hydroxide. What would be the pH of the solution after the electrolysis?
  A)
   6                                            
  done clear
  B)
   13
  done clear
  C)
    8                                           
  done clear
  D)
   10
  done clear
  View Answer play_arrow

• question_answer54) Which one of the following pairs of reactants does not form oxygen, when they react with each other?
  A)
  \[{{F}_{2}}+\]hot and cone.\[NaOH\]solution
  done clear
  B)
   \[{{F}_{2}}+\]water
  done clear
  C)
   \[C{{l}_{2}}+NaOH\] solution (cold, dilute)
  done clear
  D)
  \[CaOC{{l}_{2}}+{{H}_{2}}S{{O}_{4}}\](dilute, small amount)
  done clear
  View Answer play_arrow

• question_answer55) The pair having almost same ionic radii is
  A)
  \[C,Al\]                                
  done clear
  B)
   \[Be,Mg\]
  done clear
  C)
    \[Li,Na\]            
  done clear
  D)
  \[Ga,Al\]
  done clear
  View Answer play_arrow

• question_answer56) Which of the following molecules is paramagnetic?
  A)
   \[{{B}_{2}}\]                                     
  done clear
  B)
  \[{{H}_{2}}\]
  done clear
  C)
    \[L{{i}_{2}}\]                                    
  done clear
  D)
  \[{{N}_{2}}\]
  done clear
  View Answer play_arrow

• question_answer57) The longest wavelength line in the Lyman series of the hydrogen spectrum is
  A)
  \[949.8\,\overset{\text{o}}{\mathop{\text{A}}}\,\]
  done clear
  B)
  \[972.6\,\overset{\text{o}}{\mathop{\text{A}}}\,\]
  done clear
  C)
  \[1215.8\,\overset{\text{o}}{\mathop{\text{A}}}\,\]
  done clear
  D)
  \[1025.8\,\overset{\text{o}}{\mathop{\text{A}}}\,\]
  done clear
  View Answer play_arrow

• question_answer58) If No represents Avogadro's number, the number of valence electrons in 4.2 g of nitride ion\[({{N}^{3-}})\]is
  A)
   2.4 No                 
  done clear
  B)
   4.2 No
  done clear
  C)
   1.6 No                 
  done clear
  D)
   3.2 No
  done clear
  View Answer play_arrow

• question_answer59) Consider the following hypothetical reaction. \[A+BC+D;\]       \[{{K}_{c}}=1\times {{10}^{-4}}\] Which of the following statements is true for this reaction? In this reaction,
  A)
   products predominate
  done clear
  B)
   reactants predominate
  done clear
  C)
   equilibrium exists
  done clear
  D)
   nothing can be said
  done clear
  View Answer play_arrow

• question_answer60) Dissolution of ammonium chloride in water leads to a cooling sensation. At constant temperature, this process is accompanied by
  A)
   increase in entropy
  done clear
  B)
   decrease in entropy
  done clear
  C)
    decrease in enthalpy
  done clear
  D)
   no change in entropy
  done clear
  View Answer play_arrow

• question_answer61) The process of conversion of ozone into oxygen\[(2{{O}_{3}}\xrightarrow[{}]{{}}3{{O}_{2}})\]involves following steps \[{{O}_{3}}{{O}_{2}}+O\] \[O+{{O}_{3}}\xrightarrow[{}]{Slow}2{{O}_{2}}\] The rate law expression for this process is
  A)
   \[r=k{{[{{O}_{3}}]}^{2}}\]           
  done clear
  B)
  \[r=k{{[{{O}_{3}}]}^{2}}{{[{{O}_{2}}]}^{-1}}\]
  done clear
  C)
    \[r=k[{{O}_{3}}][{{O}_{2}}]\]    
  done clear
  D)
  \[r=k{{[{{O}_{3}}]}^{2}}{{[{{O}_{2}}]}^{-3}}\]
  done clear
  View Answer play_arrow

• question_answer62) 0.42 g magnesium carbonate and 0.5 g calcium carbonate are; heated strongly. What is the quantity left?
  A)
   0.48 g                                  
  done clear
  B)
   0.80 g
  done clear
  C)
    0.42 g                                 
  done clear
  D)
   0.28 g
  done clear
  View Answer play_arrow

• question_answer63) Chlorination of which of the following substance is a substitution reaction?
  A)
   2-butene           
  done clear
  B)
   1-butyne
  done clear
  C)
    iso-butane                       
  done clear
  D)
   iso-butylene
  done clear
  View Answer play_arrow

• question_answer64) Which of the following acts as a reducing agent to reduce\[W{{O}_{3}},Mo{{O}_{3}}\]and\[Ge{{O}_{2}}\]into metals?
  A)
   Carbon
  done clear
  B)
   Hydrogen
  done clear
  C)
    Aluminium
  done clear
  D)
   Carbon monoxide
  done clear
  View Answer play_arrow

• question_answer65) The least stable free radical is
  A)
  \[C{{H}_{3}}CHCH{{(C{{H}_{3}})}_{2}}\]
  done clear
  B)
  \[C{{H}_{2}}C{{H}_{2}}CH{{(C{{H}_{3}})}_{2}}\]
  done clear
  C)
   \[C{{H}_{3}}\]
  done clear
  D)
   \[C{{H}_{3}}C{{H}_{2}}C{{(C{{H}_{3}})}_{2}}\]
  done clear
  View Answer play_arrow

• question_answer66) The compound that can exhibit geometrical isomerism is
  A)
  \[C{{H}_{3}}{{(C{{H}_{2}})}_{4}}CHO\]
  done clear
  B)
  \[{{(CH)}_{2}}{{(COOH)}_{2}}\]
  done clear
  C)
   \[{{(C{{H}_{2}})}_{2}}{{(COOH)}_{2}}\]
  done clear
  D)
  \[{{(C{{H}_{3}})}_{2}}C=CHC{{H}_{3}}\]
  done clear
  View Answer play_arrow

• question_answer67) The IUPAC name of ferric ferrocyanide is
  A)
   hexacyanoferrate (II)
  done clear
  B)
   iron (II) hexacyanoferrate (III)
  done clear
  C)
   iron (III) hexacyanoferrate (II)
  done clear
  D)
   iron (II) hexacyanoferrate (II)
  done clear
  View Answer play_arrow

• question_answer68) A current of 2 A passed for 5 h through a molten metal salt, deposits 22.2 g of metal having atomic weight 177. The oxidation state of metal in metal salt is
  A)
   1                                            
  done clear
  B)
   2
  done clear
  C)
    3                                           
  done clear
  D)
   4
  done clear
  View Answer play_arrow

• question_answer69) Terylene is made by polymerisation of terephthalic acid with
  A)
   ethylene glycol
  done clear
  B)
   phenol
  done clear
  C)
    ethanol
  done clear
  D)
   catechol
  done clear
  View Answer play_arrow

• question_answer70) Select the incorrect statement.
  A)
   Aspirin is analgesic as well as antipyretic
  done clear
  B)
   Teflon is used to make non-stick cookware
  done clear
  C)
    Some disinfectant can be used as antiseptics
  done clear
  D)
   Penicillin is a broad spectrum antibiotic
  done clear
  View Answer play_arrow

• question_answer71) Among the following, the incorrect statement is
  A)
   Nitrous acid and acidified solutions of nitrites are oxidising agents
  done clear
  B)
   Nitrous acid and acidified solutions of nitrites act as reducing agents in the presence of acidified hydrogen peroxide
  done clear
  C)
  \[{{K}_{3}}{{C}_{60}}\]fullerene compound is not known
  done clear
  D)
  \[{{C}_{60}}\]fullerene is a covalent material
  done clear
  View Answer play_arrow

• question_answer72) Acetylene, carbon monoxide and ethyl alcohol react in the presence of nickel catalyst. The product will be
  A)
   ester of unsaturated acid
  done clear
  B)
   ester of saturated acid
  done clear
  C)
    R in the\[COOH\]of ester is an unsymmetrical radical
  done clear
  D)
   ester does not form at all
  done clear
  View Answer play_arrow

• question_answer73) Which of the following is required in lowest concentration for coagulating gold sol?
  A)
  \[{{K}_{4}}[Fe{{(CN)}_{5}}]\]
  done clear
  B)
  \[N{{a}_{2}}P{{O}_{4}}\]
  done clear
  C)
   \[MgC{{l}_{2}}\]
  done clear
  D)
  \[AlC{{l}_{3}}\]
  done clear
  View Answer play_arrow

• question_answer74) In a solid, AB having the\[NaCl\]structure, 'A? atoms occupy the corners of the cubic unit cell. If all the face centred 'A atoms along one of the axes are removed, the formula of the solid is
  A)
   \[{{A}_{2}}B\]                                  
  done clear
  B)
   \[A{{B}_{2}}\]
  done clear
  C)
   \[{{A}_{3}}{{B}_{4}}\]                                   
  done clear
  D)
  \[{{A}_{4}}{{B}_{3}}\]
  done clear
  View Answer play_arrow

• question_answer75) The structure of 2-methyl-2-butene is
  A)
  \[{{(C{{H}_{3}})}_{2}}CHC{{H}_{2}}C{{H}_{3}}\]
  done clear
  B)
   \[{{(C{{H}_{3}})}_{2}}CHCH=C{{H}_{2}}\]
  done clear
  C)
    \[{{(C{{H}_{3}})}_{2}}C=CHC{{H}_{3}}\]
  done clear
  D)
   \[C{{H}_{3}}-C{{H}_{2}}\underset{\begin{smallmatrix}  | \\  C{{H}_{3}} \end{smallmatrix}}{\mathop{C}}\,=C{{H}_{2}}\]
  done clear
  View Answer play_arrow

• question_answer76) \[R-C{{H}_{3}}\xrightarrow[{}]{Cr{{O}_{2}}C{{l}_{2}}}A\xrightarrow[{}]{{{H}_{2}}O}B\] Which of the statements about the reaction are correct? (1) If R is phenyl group, compound A is of brown colour (2) Compound B is an aldehyde (3) The reaction is called oxo reaction (4) Compound A is an acid
  A)
   1, 2 and 3 are correct
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
   2 and 4 are correct
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer77) When a gas expands at constant temperature, (1) the kinetic energy of the molecules increases (2) the kinetic energy of the molecules remains the same (3) the number of molecules of the gas increases (4) the pressure decreases
  A)
   1, 2 and 3 are correct
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
   2 and 4 are correct
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer78) Potassium manganate\[({{K}_{2}}Mn{{O}_{4}})\]is obtained when (1) formaldehyde  reacts  with  potassium permanganate in presence of a strong alkali (2) chlorine is passed into the solution of potassium permanganate (3)\[Mn{{O}_{2}}\]is fused with\[KOH\]in air (4)\[KMn{{O}_{4}}\]reacts with cone\[{{H}_{2}}S{{O}_{4}}\]
  A)
   1, 2 and 3 are correct
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
   2 and 4 are correct
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer79) Choose the correct statement about crotyl alcohol. (1) It is a primary alcohol (2) It contains one\[C{{H}_{2}}\]unit more, than allyl alcohol (3) It gives test of unsaturation (4) It is an isomer of allyl alcohol
  A)
   1, 2 and 3 are correct
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
   2 and 4 are correct
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer80) 8g of oxygen molecule has the same number of molecules as in (1) 11 g carbon dioxide (2) 11.2Lof\[S{{O}_{2}}\] (3) 5.6 L of oxygen (4) 0.1 g atom of\[He\]
  A)
   1, 2 and 3 are correct
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
   2 and 4 are correct
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer81) The polymer(s) having 1, 3-butadiene as one of the monomer units, is (are) (1) nitrile rubber               (2) ABS rubber (3) SBR                                  (4) butyl rubber
  A)
   1, 2 and 3 are correct
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
   2 and 4 are correct
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer82) To 10 mL of\[5\text{ }M\text{ }BaC{{l}_{2}}\]solution, 5 mL of 0.5 M\[{{K}_{2}}S{{O}_{4}}\]solution is added. Barium sulphate precipitates out, what will happen? (1) Freezing point will decrease (2) Freezing point will increase (3) Boiling point will increase (4) Boiling point will decrease
  A)
   1, 2 and 3 are correct
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
   2 and 4 are correct
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer83) Which of the following statement(s) is (are) correct? (1)\[HPO_{4}^{2-}\]is the conjugate base of\[{{H}_{2}}PO_{4}^{-}\] (2) The pH of\[1.0\times {{10}^{-8}}M\]solution of\[HCl\]is 8 (3) Autoprotolysis constant of water increases with temperature (4) When a solution of a weak monoprotic acid is treated against a strong base, at half-neutralisation point,\[pH=\frac{1}{2}p{{K}_{a}}\]
  A)
   1, 2 and 3 are correct
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
   2 and 4 are correct
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer84) Which among the following statements are correct with respect to adsorption of gases on a solid? (1) The extent of adsorption is equal to\[k{{p}^{1/n}}\]according to Freundlich isotherm (2) Freundlich adsorption isotherm fails at low pressure (3) The extent of adsorption is equal to \[\left( \frac{ap}{1+bp} \right)\]according to Langmuir isotherm (4) The extent of adsorption is equal to \[\left( \frac{1+bp}{ap} \right)\]according to Langmuir isotherm
  A)
   1, 2 and 3 are correct
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
   2 and 4 are correct
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer85) Which of the following carbohydrates on treatment with excess of phenylhydrazine give the same osazone? (1) Glucose                         (2) Mannose (3) Fructose                        (4) Galactose
  A)
   1, 2 and 3 are correct
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
   2 and 4 are correct
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer86) Benzyl amine may be prepared by (1) \[{{C}_{6}}{{H}_{5}}CON{{H}_{2}}\xrightarrow{LiAl{{H}_{4}}/ether}\] (2) \[{{C}_{6}}{{H}_{5}}CN\xrightarrow{LiAl{{H}_{4}}/ether}\] (3) \[{{C}_{6}}{{H}_{5}}CON{{H}_{2}}\xrightarrow{NaOH/B{{r}_{2}}}\] (4) \[{{C}_{6}}{{H}_{5}}N{{O}_{2}}\xrightarrow{Sn/HCl}\]
  A)
   1, 2 and 3 are correct
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
   2 and 4 are correct
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer87) The molecules that have non-zero dipole moment, are (1) trans-2-butene (2) trans-2-pentene (3) 2, 2, 3, 3-tetramethyl butane (4) cis-3-hexene
  A)
   1, 2 and 3 are correct
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
   2 and 4 are correct
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer88) In the electrolysis of alumina, cryolite is added to (1) lower the melting point of alumina (2) increase the electrical conductivity (3) minimize the anode effect (4) remove impurities from alumina
  A)
   1, 2 and 3 are correct
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
   2 and 4 are correct
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer89) Which of the following species are aromatic? (1) Cyclopropenyl anion (2) Cycloheptatrienyl cation (3) Tropylium anion (4) Cyclopentadienyl anion
  A)
   1, 2 and 3 are correct
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
   2 and 4 are correct
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer90) For the following conversion,\[C{{H}_{  3}}C{{H}_{2}}C{{H}_{2}}C{{H}_{2}}Cl\xrightarrow{{}}{{C}_{2}}{{H}_{5}}-{{C}_{2}}{{H}_{5}}\]the Reagent used, are (1) Mg, dry ether/\[{{H}_{2}}O\] (2)\[LiAl{{H}_{4}}\] (3) \[Zn/HCl\] (4) \[{{B}_{2}}{{H}_{6}}/THF\]
  A)
   1, 2 and 3 are correct
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
   2 and 4 are correct
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer91) Carbon dioxide is isostructural with (1)\[HgC{{l}_{2}}\]                                           (2)\[SnC{{l}_{2}}\] (3)\[{{C}_{2}}{{H}_{2}}\]                               (4)\[N{{O}_{2}}\]
  A)
   1, 2 and 3 are correct
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
   2 and 4 are correct
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer92) For which of the following reactions, the value of\[{{K}_{p}}\]will be equal to\[{{K}_{c}}\]? (1) \[{{N}_{2}}(g)+{{O}_{2}}(g)2NO(g)\] (2) \[S{{O}_{2}}(g)+C{{l}_{2}}(g)S{{O}_{2}}C{{l}_{2}}(g)\] (3) \[{{H}_{2}}(g)+S(g){{H}_{2}}S(g)\] (4) \[2S{{O}_{2}}(g)+{{O}_{2}}(g)2S{{O}_{3}}(g)\]
  A)
   1, 2 and 3 are correct
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
   2 and 4 are correct
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer93) Only one monochloro derivative is formed by the monochlorination of (1) butane                           (2) ethane (3) iso-pentane                 (4) neo-pentane
  A)
   1, 2 and 3 are correct
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
   2 and 4 are correct
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer94) Zwitter ion is formed in case of (1) glycine (2) sulphanilic acid (3) salicylic acid  picric acid
  A)
   1, 2 and 3 are correct
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
   2 and 4 are correct
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer95) The value of AS is positive for (1) evaporation of water (2) dissolution of sugar in water (3) crystallisation of salt from brine (4) stretching of rubber band
  A)
   1, 2 and 3 are correct
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
   2 and 4 are correct
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer96) Select the correct statements. (1) For 2s orbital, the order of energy is as\[{{E}_{2s}}(H)>{{E}_{2s}}(Li)>{{E}_{2s}}(Na)>{{E}_{2s}}(K)\] (2) For hydrogen atom, the order of energy is as\[1s<2s=2p<3s=3p=3d\] (3) When an electron is free from the influence of electron, its energy is zero (4) de-Broglie relationship is applicable only in case of macroscopic objects
  A)
   1, 2 and 3 are correct
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
   2 and 4 are correct
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer97) Which of the following statement(s) are correct for complex\[{{[Co{{(en)}_{2}}C{{l}_{2}}]}^{+}}\]? (1) The coordination number of Co is 6 (2) trans- form of the complex exhibits optical isomerism (3) The oxidation number of Co is +3 (4) en is a monodentate ligand
  A)
   1, 2 and 3 are correct
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
   2 and 4 are correct
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer98) Consider the following compounds. Select the correct statement(s). (1) I is more basic than II (2) II is more basic than I and III (3) III is more basic than II (4) I is weakly acidic
  A)
   1, 2 and 3 are correct
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
   2 and 4 are correct
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer99) In a nuclear reactor, heavy water is used (1) to transfer heat from the nuclear reactor (2) to reduce speed of neutrons (3) to capture neutrons produced by nuclear fission (4) to provide high speed neutrons
  A)
   1, 2 and 3 are correct
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
   2 and 4 are correct
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer100) Given, \[E_{(N{{i}^{2+}}/Ni)}^{o}=0.25\,V,E_{(C{{u}^{2+}}/Cu)}^{o}=0.34\,V;\] \[E_{(A{{g}^{+}}/Ag)}^{o}=0.80\,V\] and   \[E_{(Z{{n}^{2+}}/Zn)}^{o}=-0.76\,V;\] Which of the following reactions under standard condition will not take place in the specified direction? (1) \[N{{i}^{2+}}+Cu\xrightarrow[{}]{{}}Ni+C{{u}^{2+}}\] (2) \[Cu+2A{{g}^{+}}\xrightarrow[{}]{{}}C{{u}^{2+}}+2Ag\] (3) \[Cu+2{{H}^{+}}\xrightarrow[{}]{{}}C{{u}^{2+}}+{{H}_{2}}\] (4)\[Zn+2{{H}^{+}}\xrightarrow[{}]{{}}Z{{n}^{2+}}+3{{H}_{2}}\]
  A)
   1, 2 and 3 are correct
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
   2 and 4 are correct
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer101) Which of the following organisms is found in lymph nodes?
  A)
   Wuchereria                      
  done clear
  B)
   Pltumodium
  done clear
  C)
    Leishmania                      
  done clear
  D)
   Diplococcus
  done clear
  View Answer play_arrow

• question_answer102) Brunner's glands are found in
  A)
   mucosa of intestine
  done clear
  B)
   liver
  done clear
  C)
   mucosa of duodenum
  done clear
  D)
   submucosa of first part of intestine
  done clear
  View Answer play_arrow

• question_answer103) Which law states that two species cannot co-exist in the same locality, if they have identical ecological requirements?
  A)
   Gloger's law     
  done clear
  B)
   Cope's taw
  done clear
  C)
   Cause's law      
  done clear
  D)
   Allan's rule
  done clear
  View Answer play_arrow

• question_answer104) Colle's fracture is associated with
  A)
   femur                                 
  done clear
  B)
   humerus
  done clear
  C)
    ulna                                    
  done clear
  D)
   radius
  done clear
  View Answer play_arrow

• question_answer105) Frenulum is
  A)
   adenoid present on pharyngeal wall
  done clear
  B)
   ronsil found on lateral wall of soft palate
  done clear
  C)
   V-shaped sulcus dividing tongue into pharyngeal and oral pans
  done clear
  D)
   fold attaching tongue
  done clear
  View Answer play_arrow

• question_answer106) Renal portal system carries blood
  A)
   from alimentary canal towards liver
  done clear
  B)
   from hind limbs to kidneys
  done clear
  C)
   from liver to kidney
  done clear
  D)
   from alimentary canal to liver
  done clear
  View Answer play_arrow

• question_answer107) Black water fever is caused by
  A)
   Plasmodium malariae
  done clear
  B)
   Plasmodium ovale
  done clear
  C)
   Plasmodium falciparum
  done clear
  D)
   Plasmodium vivax
  done clear
  View Answer play_arrow

• question_answer108) Protistan protozoan having nuclear dimorphism is
  A)
   Amoeba proteus
  done clear
  B)
   Paramecium caudatum
  done clear
  C)
   Plasmodium vivax
  done clear
  D)
   Trypanosoma gambiense
  done clear
  View Answer play_arrow

• question_answer109) Pressure sensitive receptors in the dermis are
  A)
   Rurfini's corpuscles
  done clear
  B)
   Meissner's corpuscles
  done clear
  C)
   Pacini's corpuscles
  done clear
  D)
   Krause's terminal bulbs
  done clear
  View Answer play_arrow

• question_answer110) Ommatidia serve the purpose of photo reception in
  A)
   cockroach                          
  done clear
  B)
   frog
  done clear
  C)
    molluscs                            
  done clear
  D)
   humans
  done clear
  View Answer play_arrow

• question_answer111) Hypersecretion of mineralocorticoids leads to
  A)
   Conn's syndrome           
  done clear
  B)
   Simmond's disease
  done clear
  C)
    Cushing's disease
  done clear
  D)
   Addison's disease
  done clear
  View Answer play_arrow

• question_answer112) The banding patterns of chromosomes 3 and 6 of man and chimpanzee show that
  A)
   they have common origin
  done clear
  B)
   they have different origin
  done clear
  C)
   they have similar blood groups
  done clear
  D)
   they have same number of chromosomes
  done clear
  View Answer play_arrow

• question_answer113) Process used for amplification or multiplication of DNA for finger printing is
  A)
   Polymerase chain reaction
  done clear
  B)
   Nesslerisation
  done clear
  C)
   Southern blotting          
  done clear
  D)
   Northern blotting
  done clear
  View Answer play_arrow

• question_answer114) Laurer's canal is found in
  A)
   Amoeba                             
  done clear
  B)
   Paramecium    
  done clear
  C)
    Hydra                                 
  done clear
  D)
   Fasciola       
  done clear
  View Answer play_arrow

• question_answer115) Ruminants belong to order
  A)
   Ceracea                              
  done clear
  B)
   Artiodactyla
  done clear
  C)
    Perissodactyla                
  done clear
  D)
   Rodentia
  done clear
  View Answer play_arrow

• question_answer116) Protein present in cartilage is
  A)
   cartilagin                            
  done clear
  B)
   chondrin
  done clear
  C)
    ossein                                
  done clear
  D)
   oesein         
  done clear
  View Answer play_arrow

• question_answer117) A bone kept in dilute HCl for three days shall
  A)
   break in pieces                
  done clear
  B)
   become soft
  done clear
  C)
   remain unaltered           
  done clear
  D)
   dissolve completely
  done clear
  View Answer play_arrow

• question_answer118) The fluid released from the vagina just prior to child birth is the
  A)
   babies' accumulated urine
  done clear
  B)
   amniotic fluid
  done clear
  C)
   mother's plasma from the umbilical cord
  done clear
  D)
   baby's plasma from its foetal circulation
  done clear
  View Answer play_arrow

• question_answer119) Mehlis's glands of tapeworm are associated with
  A)
   reproduction                   
  done clear
  B)
   excretion
  done clear
  C)
   respiration       
  done clear
  D)
   circulation
  done clear
  View Answer play_arrow

• question_answer120) During normal respiration, without any effort, the volume of air inspired or expired is called
  A)
   tidal volume     
  done clear
  B)
   reserve volume                     
  done clear
  C)
   residual volume     
  done clear
  D)
   None of the above  
  done clear
  View Answer play_arrow

• question_answer121)         In insects, muscle contraction, oviposirion, defecation and heartbeats are regulated by
  A)
   corpora allara                   
  done clear
  B)
   corpora cardiac
  done clear
  C)
   protocerebrum               
  done clear
  D)
   thoracic ganglion
  done clear
  View Answer play_arrow

• question_answer122) Which of the following pairs is not correct?
  A)
   Foot and Mouth              ? Cattle
  done clear
  B)
   Ranikhet                             ? Fowl
  done clear
  C)
   Pebrine                               ? Silkworm
  done clear
  D)
   Rinderpest                         ? Honey bee
  done clear
  View Answer play_arrow

• question_answer123) Lethal gene of Drosophila is
  A)
   curly wings (Cy)              
  done clear
  B)
   plum eyes (Pm)
  done clear
  C)
   stubbles (Sub)                 
  done clear
  D)
   All of these
  done clear
  View Answer play_arrow

• question_answer124) Progesterone present in contraceptive pill if meant for
  A)
   checking ovulation
  done clear
  B)
   preventing fertilization
  done clear
  C)
    preventing implantation of zygote
  done clear
  D)
   preventing cleavage
  done clear
  View Answer play_arrow

• question_answer125) Treatment of snake bite by and venin is providing
  A)
   artificial acquired active immunity
  done clear
  B)
   artificial acquired passive immunity
  done clear
  C)
   natural acquired passive immunity
  done clear
  D)
   specific natural immunity
  done clear
  View Answer play_arrow

• question_answer126) Which of the following is correct about urea cycle ? (1) Urea cycle takes place in the liver cells (2) Urea cycle involves the union of two       molecules of ammonia and a molecule of      carbon dioxide (3) Urea is produced by enzyme arginase (4) Three molecules of ammonia enter ornithine cycle
  A)
   1, 2 and 3 are correct    
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
   2 and 4 are correct         
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer127) Connective tissue (1) transport various materials in the body (2) provide the body a supporting skeletal framework (3) act as packing material in various organs (4) allow the absorption of nutrients from the gut
  A)
   1, 2 and 3 are correct    
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
   2 and 4 are correct         
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer128) Arthropods have (1) bilateral symmetry and segmented body plan (2) organsystemofgradeofbodyorganization (3) jointed legs and division of labour (4) pseudocoelom and metamerism
  A)
   1, 2 and 3 are correct    
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
   2 and 4 are correct         
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer129) Match List \[\text{I}\] and List \[\text{II}\] and select the answer using the codes.

  1. kUmbilical cord	A. The structure that acts as a bridge between foetus and placenta
  2. Neural tube	B. The structure from which the central nervous system develops
  3. Cervix	C. The neck of uterus
  4. Trophoblast	D. Forms the embryo proper

  A)
   1, 2 and 3 are correct    
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
   2 and 4 are correct         
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer130) Which of the following is true about preen gland? (1) Occur in birds (2) Also known as uropygial gland (3) Occur in bats (4) help in digestion
  A)
   1, 2 and 3 are correct    
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
   2 and 4 are correct         
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer131) Match List \[\text{I}\] and List \[\text{II}\] and select the answer using the codes

  List \[\text{I}\]	List\[\text{II}\]
  1. Cartilaginous  fishes	A. Two groups of paired fins
  2. Bony fishes	B. Have an operculum that helps to pump water over their gills
  3. Amphibians	C. First vertebrates with amniotic eggs
  4. Reptiles	D. First vertebrates with   legs

  A)
   1, 2 and 3 are correct    
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
   2 and 4 are correct         
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer132) The correct statement about antibodies is (1) antibodies are produced by lymphocytes (2) antibodies are carbohydrate molecules (3) antibody consists of two heavy chains and two light chains (4) characterized by the presence of antigenic determinant site
  A)
   1, 2 and 3 are correct    
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
   2 and 4 are correct         
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer133) Which of the following pairs is correctly matched ? (1) Angiography                ? Magnetic field (2) Sonography                 ? Ultrasound (3) NMR                               ? Ionising radiations (4) CT scanning                  ? X-rays
  A)
   1, 2 and 3 are correct    
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
   2 and 4 are correct         
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer134) Example of an external prosthesis is (1) myoelectric arm (2) Jaipur foot (3) electronic hearing aids (4) nose implant for cosmetic reshaping
  A)
   1, 2 and 3 are correct    
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
   2 and 4 are correct         
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer135) Which of the following is an autoimmune disease ? (1) Grave's disease          (2) Hodgekin's disease (3) Rheumatoid arthritis                (4) Asthma
  A)
   1, 2 and 3 are correct    
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
   2 and 4 are correct         
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer136) Cellular activities are regulated through the (1) How of energy           (2) flow of material (3) flow of information (4) flow of organelles
  A)
   1, 2 and 3 are correct    
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
   2 and 4 are correct         
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer137) Mitosis differs from meiosis in not having (1) duplication of DNA   (2) synapsis (3) interphase                   (4) crossing over
  A)
   1, 2 and 3 are correct    
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
   2 and 4 are correct         
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer138) Identify the correctly matched pair. (1) Nucleolus                                     ? RNA synthesis (2) Spherosome                               ?Transport of macro- molecules (3) Glyoxysome                                ? Glyoxylate cyde (4) Plasmodesmata         ? Lipid storage
  A)
   1, 2 and 3 are correct    
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
   2 and 4 are correct         
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer139) The diffusion of bicarbonate ions from RBCs into plasma and of chloride ions from plasma into RBCs to maintain ionic balance between RBCs and plasma is known as (1) Henry's rule                 (2) Chloride shift (3) Charle's law (4) Hamburger's phenomenon
  A)
   1, 2 and 3 are correct    
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
   2 and 4 are correct         
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer140) The first heart sound 'lubb? (1) marks the beginning of ventricular systole (2) marks the end of ventricular systole (3) is due to closure of atrioventricular valves (4) is produced by the closure of semilunar valves
  A)
   1, 2 and 3 are correct    
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
   2 and 4 are correct         
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer141) Identify the incorrectly matched pair related to vitamin deficiency. (1) Vitamin-K ? Degeneration of muscles (2) Vitamin-A ? Xerophthalmia (3) Vitamin-D ? Keratomalacia (4) Vitamin-E ? Reproductive failure
  A)
   1, 2 and 3 are correct    
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
   2 and 4 are correct         
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer142) The main function of bile is (1) emulsification of fat (2) store bile pigments (3) neutralise gastric HCl and provide alkaline medium in duodenum (4) to stimulate secretion of pancreatic enzymes
  A)
   1, 2 and 3 are correct    
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
   2 and 4 are correct         
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer143) Factor(s) that raises \[{{\text{P}}_{\text{50}}}\] value and shift the HbO2 dissociation curve to right and vice versa is/are (1) rise in \[{{\text{P}}_{C{{O}_{2.}}}}\]                  (2) rise in H+ ions (3) rise in diphosphoglyceric acid (4) rise in pH but fall in temperature
  A)
   1, 2 and 3 are correct    
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
   2 and 4 are correct         
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer144) Which of the following cranial nerve is sensory in function ? (1) Olfactory                                       (3) Optic (3) Oculomotor                 (4) Trochlear
  A)
   1, 2 and 3 are correct    
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
   2 and 4 are correct         
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer145) The function of thyroid hormone is to (1) control the secretion of adrenal cortex (2) increase the \[\text{IQ}\] and BMR (3) increase the blood pressure by contracting blood vessels (4) increase the production of energy by an increase in the oxidation of glucose
  A)
   1, 2 and 3 are correct    
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
   2 and 4 are correct         
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer146) Which of the following are mesodermal in origin? (1) Blood, bone marrow and neural tube (2) Skeletal muscles and reproductive ducts (3) Parathyroid and enamel of teeth (4) Kidney and endothelium of blood vessels
  A)
   1, 2 and 3 are correct    
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
   2 and 4 are correct         
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer147) Menses occurs in (1) human beings only (2) old world monkeys and apes (primates) (3) every mammal (4) pouched mammals (metatherians)
  A)
   1, 2 and 3 are correct    
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
   2 and 4 are correct         
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer148) Which of the following metabolic activities occur due to sperm interaction into ovum? (1) The vitelline membrane is lifted and is converted into fertilization membrane (2) The permeability of plasma membrane increases (3) The rate of protein synthesis increases (4) The egg surface produces antifertilizin
  A)
   1, 2 and 3 are correct    
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
   2 and 4 are correct         
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer149) The distinct features of extra nuclear inheritance are (1) only the female parent contributes towards inheritance (2) both the parents contribute equally towards inheritance (3) due to the participation of female only, the result of reciprocal crosses is not the same (4) result of reciprocal crosses are same
  A)
   1, 2 and 3 are correct    
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
   2 and 4 are correct         
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer150) Regulatory genes are the genes that (1) code for represser proteins (2) are transcribed continuously (3) are not contained in the operon  they control (4) determine the primary structure of polypeptide chain
  A)
   1, 2 and 3 are correct    
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
   2 and 4 are correct         
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer151) A dwarf pea plant in which bolting has occurred is crossed with a tall pure pea plant. What will be the phenotypic ratio in \[{{F}_{1}}\]generation?
  A)
   100% tall plants
  done clear
  B)
   100% dwarf plants
  done clear
  C)
   50% tall and 50% dwarf plants
  done clear
  D)
   75% tall and 25% dwarf plants
  done clear
  View Answer play_arrow

• question_answer152) The formation of multivalents at meiosis in diploid organism is due to
  A)
   terminalization
  done clear
  B)
   reciprocal translocation
  done clear
  C)
   monosomy                       
  done clear
  D)
   inversion
  done clear
  View Answer play_arrow

• question_answer153) The main character of plants of fanaily- Cruciferae is the presence of
  A)
   pectin                                 
  done clear
  B)
   myrosin enzyme
  done clear
  C)
   latex                                    
  done clear
  D)
   alkaloids
  done clear
  View Answer play_arrow

• question_answer154) Presence of basal rhizoidal cell in Ulothrix is an example of
  A)
   dead cell
  done clear
  B)
   vestigial cell
  done clear
  C)
    accessory cell
  done clear
  D)
   beginning of division of labour
  done clear
  View Answer play_arrow

• question_answer155) One of the plants introduced from the new world to the old world is
  A)
   wheat                                 
  done clear
  B)
   potato
  done clear
  C)
   rice                                       
  done clear
  D)
   sugarcane
  done clear
  View Answer play_arrow

• question_answer156) Despite high level of heterozygosity, the progeny derived from a seed of cross pollinated plant was found to be completely uniform. One reason can be
  A)
   polyploidy                         
  done clear
  B)
   parthenocarpy
  done clear
  C)
   induced mutation          
  done clear
  D)
   apomixes
  done clear
  View Answer play_arrow

• question_answer157) The crystals of calcium carbonate deposit in the cell is called
  A)
   crystalloid          
  done clear
  B)
   aleurone
  done clear
  C)
   cystolith                             
  done clear
  D)
   globoid
  done clear
  View Answer play_arrow

• question_answer158) Sialic acid is a constituent of
  A)
   cell wall                              
  done clear
  B)
   dictyosome
  done clear
  C)
   chromosome                   
  done clear
  D)
   cell membrane
  done clear
  View Answer play_arrow

• question_answer159) Protoxylem lacunae occur in
  A)
   cladodes                            
  done clear
  B)
   underground stems
  done clear
  C)
    vascular bundles of grass stem    
  done clear
  D)
   climbers
  done clear
  View Answer play_arrow

• question_answer160) Sac fungi belongs co
  A)
   Basidiomycetes              
  done clear
  B)
   Phycomycetes
  done clear
  C)
   Deuteromycetes            
  done clear
  D)
   Ascomycetes
  done clear
  View Answer play_arrow

• question_answer161) RQ is always less than one in
  A)
   millets                                 
  done clear
  B)
   wheat
  done clear
  C)
   bean                                    
  done clear
  D)
   castor
  done clear
  View Answer play_arrow

• question_answer162) An increase in \[{{O}_{2}}\]concentration results in a decrease in the rate of photosynthesis known as
  A)
   Warburg's effect            
  done clear
  B)
   Malli's effect
  done clear
  C)
   Ganong's effect              
  done clear
  D)
   None of these
  done clear
  View Answer play_arrow

• question_answer163) In a flower, and roperianth represents
  A)
   bracts, sepals, petals and stamens
  done clear
  B)
   differentiable sepals, petals and stamens
  done clear
  C)
   differentiable sepals, petals and stamens
  done clear
  D)
   petals and stamens only
  done clear
  View Answer play_arrow

• question_answer164) In banana, edible part is
  A)
   fleshy epicarp
  done clear
  B)
   rudimentary mesocarp and fleshy endocarp
  done clear
  C)
   rudimentary endocarp and fleshy mesocarp
  done clear
  D)
   pericarp
  done clear
  View Answer play_arrow

• question_answer165) At the time of pollination, the pollen grain of Pinus are
  A)
   one celled                         
  done clear
  B)
   two celled
  done clear
  C)
   three celled                      
  done clear
  D)
   four celled
  done clear
  View Answer play_arrow

• question_answer166) In Selaginella, the adaxial outgrowth from the base of leaf is called
  A)
   ligule                                   
  done clear
  B)
   velum
  done clear
  C)
   rhizome                             
  done clear
  D)
   glossopodium
  done clear
  View Answer play_arrow

• question_answer167) In bryophyles, the posterior part of archegonium grows to protect the embryo. It is
  A)
   paraphysis       
  done clear
  B)
   apophysis
  done clear
  C)
   hypophysis      
  done clear
  D)
   calyptras
  done clear
  View Answer play_arrow

• question_answer168) Which one has evergreen vegetation and drought adapted animals?
  A)
   Chapparal                          
  done clear
  B)
   Savanna
  done clear
  C)
    Tundra                               
  done clear
  D)
   Deciduous forest
  done clear
  View Answer play_arrow

• question_answer169) Animals of colder areas have shorter extremities as compared to animals of wanner areas. This is
  A)
   Bergman's rule                
  done clear
  B)
   Alien's rule
  done clear
  C)
   Jordan's rule                    
  done clear
  D)
   Rensch's rule
  done clear
  View Answer play_arrow

• question_answer170) Under anaerobic conditions, denitrifying bacterium Pseudomonas changes
  A)
   nitrate to molecular nitrogen
  done clear
  B)
   nitrate to ammonia
  done clear
  C)
   nitrate to nitrite
  done clear
  D)
   nitrite to nitrate
  done clear
  View Answer play_arrow

• question_answer171) Botanical name of groundnut is
  A)
   Glycine max                     
  done clear
  B)
   Dolichos lablab
  done clear
  C)
   Arachis hypogea             
  done clear
  D)
   Faciolus radiates
  done clear
  View Answer play_arrow

• question_answer172) If a tree flowers thrice in a year in October, January and July in Northern India, the plant is
  A)
   photo and thermo sensitive
  done clear
  B)
   photo and thermo insensitive
  done clear
  C)
   photo sensitive but thermo insensitive
  done clear
  D)
   thermo sensitive but photo insensitive
  done clear
  View Answer play_arrow

• question_answer173) In water logged soil, plants do not grow properly because
  A)
   the soil is physiologically dry
  done clear
  B)
   the soil is physiologically wet
  done clear
  C)
   of excessive water
  done clear
  D)
   of shortage of water
  done clear
  View Answer play_arrow

• question_answer174) Thick cuticule on the leaves are typical of plants growing in
  A)
   wet habitats                     
  done clear
  B)
   warm habitats
  done clear
  C)
   dry habitats                      
  done clear
  D)
   cool habitats
  done clear
  View Answer play_arrow

• question_answer175) Virus with nucleic acid but without protein coat is called
  A)
   virion                                   
  done clear
  B)
   viroid
  done clear
  C)
   capsid                                 
  done clear
  D)
   prion
  done clear
  View Answer play_arrow

• question_answer176) Consider the following statements. (1) Copper is present in cytochrome oxidase (2) Pantothenic acid is the precursor of Co-A (3) Thiamine pyrophosphate is the prosthetic group in decarboxylases (4)Zinc is present in RNA and DNA polymerases
  A)
   1, 2 and 3 are correct    
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
   2 and 4 are correct         
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer177) The main biodiversity hot spots in India are (1) Eastern Himalaya       (2) Western ghats (3) Eastern ghats                              (4) Western Himalaya
  A)
   1, 2 and 3 are correct    
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
   2 and 4 are correct         
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer178) Select   the   correct   statement   about leghaemoglobin. (1) Leghaemoglobin is a source of energy (2) Leghaemoglobin is a pinkish coloured pigment found in the root nodules (3) Leghaemoglobin is activated by the presence of \[M{{g}^{2+}}\]ions (4) Leghaemoglobin protects the nitrogen fixing enzyme nitrogenase from oxygen
  A)
   1, 2 and 3 are correct    
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
   2 and 4 are correct         
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer179) Link between glycolysis, Kreb's cycle or \[\text{ }\!\!\beta\!\!\text{ -}\] oxidation of fatty acid or carbohydrate and fat metabolism is (1) acetyl Co-A (2) a compound fanned by oxidarive decarboxylation (3) a 2-carbon compound (4) oxaloacetic acid
  A)
   1, 2 and 3 are correct    
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
   2 and 4 are correct         
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer180) The head inflorescence is considered as the most perfect type of inflorescence, because (1) numerous small sized flowers occur on the receptacle (2) flowers are protected by various structures like involucre (3) single visit of insect is sufficient for pollination (4) flowers are dull and colourless
  A)
   1, 2 and 3 are correct    
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
   2 and 4 are correct         
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer181) Assimilary roots are present in (1) Loranthus and Viscum (2) Tinospora and Trapa (3) Sacchamm and Pandanus (4) Taeniophyllum and Podostemon
  A)
   1, 2 and 3 are correct    
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
   2 and 4 are correct         
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer182) The examples of cellular endosperm are (1) Citrus, Malea, Primula (2) Adoxa, Cetranthus, Datura (3) Phoenix, Acer, Arachis (4) Impatiens, Magnolia, Cetranthus
  A)
   1, 2 and 3 are correct    
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
   2 and 4 are correct         
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer183) Consider the following statements- (1) Negative geotropism in horizontal stems is caused by accumulation of auxins on the lower side (2) Pineapple can be made to flower in off season by the application of ethylene (3) The ratio of auxin to cytokinin controls cell differentiation (4) Large sized grapes can be produced through cytokinin treatment
  A)
   1, 2 and 3 are correct    
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
   2 and 4 are correct         
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer184) Which of the following pairs is correctly matched ? (1) Stimulants ? Benzedrine and methedrine (2) Opiates   ? Ganja, charas (3) Depressants ? Nembutal and seconal (4) Hellucinogens ? Opium and heroin
  A)
   1, 2 and 3 are correct    
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
   2 and 4 are correct         
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer185) Lowering the oxygen concentration (1) stimulates \[{{C}_{3}}\]photosynthesis (2) inhibits \[{{C}_{3}}\] photosynthesis (3) does not affect \[{{C}_{4}}\]photosynthesis        (4) stimulates \[{{C}_{4}}\]photosynthesis
  A)
   1, 2 and 3 are correct    
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
   2 and 4 are correct         
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer186) In which of the following activities, ubisch bodies are not involved? (1) Initiating meiosis in pollen mother cell (2) Providing nutrition to developing pollen (3) Specific embryological functions (4) Designing the external thickening of pollen
  A)
   1, 2 and 3 are correct    
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
   2 and 4 are correct         
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer187) Match List \[\text{I}\] with List \[\text{II}\] and select the correct answer using the codes.

  \[\text{List}\,\text{-I}\]	\[\text{List}\,\text{-II}\]
  1. Complete Linkage	A. Genes remain together for at least 2 generations
  2. Incomplete linkage	B. Main cause is crossing over
  3. Isolalleles	C. Alleles expressing themselves within same phenotypic range
  4. Penetrance	D. Exchange between homologous parts of chromosomes during meiosis

  A)
   1, 2 and 3 are correct    
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
   2 and 4 are correct         
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer188) Which of the following is a Hill oxidant? (1) \[\text{DCMU}\]                                       (3) Dichlorophenol (3) \[\text{RUBISCO}\]                  (4) Ferricyanide
  A)
   1, 2 and 3 are correct    
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
   2 and 4 are correct         
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer189) The orthodox seed is found in (1) coconut                                         (2) legumes (3) jack                                 (4) cereals
  A)
   1, 2 and 3 are correct    
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
   2 and 4 are correct         
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer190) Parachute mechanism occurs in (1) Sonchus                                        (2) Helianthus (2) Antirrhinum                 (4) Carthamus
  A)
   1, 2 and 3 are correct    
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
   2 and 4 are correct         
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer191) Which of the following characteristics are associated with hydrophytes? (1) Water and mineral nutrients are absorbed through general body surface (2) Osmotic concentration or osmotic potential of cell is equal to or slightly higher than external water (3) Presence of weak and negatively geotropic roots (4) Presence of mucilage to hold water
  A)
   1, 2 and 3 are correct    
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
   2 and 4 are correct         
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer192) Enzymes used in recombinant DNA technology are (1) reverse transcriptase (2) ligase (3) phosphatase (4) restriction endonudeases
  A)
   1, 2 and 3 are correct    
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
   2 and 4 are correct         
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer193) Identify the correctly matched pair with reference to plant tissue culture. (1) Embryoids      ? Non-zygotic embryos produced from somatic cells (2) Meristem culture ? Sterile triploid, seedless fruits (3) Pollen culture    ? Haploid production (4) Embryo rescue   ? Virus free clonal plants
  A)
   1, 2 and 3 are correct    
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
   2 and 4 are correct         
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer194) Identify the correctly matched pair(s). (1) Chromonema   ? A localized condensed region of chromosome (2) Non-disjunction ? The failure of chromosomes to be separated during meiosis or mitosis (3) Master and slave ? Polytene chromosome hypothesis (4) Chromocentre   ? Lampbrush chromosome
  A)
   1, 2 and 3 are correct    
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
   2 and 4 are correct         
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer195) Consider the following statements and select the correct answer using the code. (1) Lactose is made up of two glucose units (2) Cutin is a fatty acid polymer. (3) Raffinose is a polysaccharide (4) Maltose is a reducing sugar
  A)
   1, 2 and 3 are correct    
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
   2 and 4 are correct         
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer196) Which of the following is not true about archaebacteria. (1) Cell wall is made up of peptidoglycan (2) Include extreme halophiles, thermophues and methanogens (3) Lipids in cell membrane have phytanyl side chain (4) Lipids in cell membrane have fatty acid side chain
  A)
   1, 2 and 3 are correct    
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
   2 and 4 are correct         
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer197) Axile placentation is found in (1) Malvaceae                   (2) Solanaceae (3) Ranunculaceae           (4) Asteraceae
  A)
   1, 2 and 3 are correct    
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
   2 and 4 are correct         
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer198) Elatcrs are not found in the sporangium of (1) Sphagnum                    (2) Marchantia (3) Selagmella                    (4) All of these
  A)
   1, 2 and 3 are correct    
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
   2 and 4 are correct         
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer199) Which of the following are not seed producers? (1) Fem                                (3) Funaria (3) Ficus                               (4) Pinus
  A)
   1, 2 and 3 are correct    
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
   2 and 4 are correct         
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow

• question_answer200) Selaginella nearly approaches seed habit because it shows (1) heterospory                           (2) retention of megaspore in mega sporangium till the development of young sporophyte (3) presence of ligulate leaves (4) sexual type of reproduction
  A)
   1, 2 and 3 are correct    
  done clear
  B)
   1 and 2 are correct
  done clear
  C)
   2 and 4 are correct         
  done clear
  D)
   1 and 3 are correct
  done clear
  View Answer play_arrow