Solved papers for Manipal Medical Manipal Medical Solved Paper-2007

done Manipal Medical Solved Paper-2007 Total Questions - 240

• question_answer1) The electric resistance of a certain wire of iron is R. If its length and radius are both doubled, then     
  A)
   the resistance will be doubled and the specific resistance will be halved
  done clear
  B)
   the resistance will be halved and the specific resistance will remain unchanged
  done clear
  C)
   the resistance will be halved and the specific resistance will be doubled
  done clear
  D)
   the resistance and the specific resistance, will both remain unchanged
  done clear
  View Answer play_arrow

• question_answer2) A ball of mass 2 kg and another of mass 4 kg are dropped together from a 60 ft tall building. After a fall of 30 ft each towards earth, their respective kinetic energies will be in the ratio of
  A)
   \[\sqrt{2}:1\]        
  done clear
  B)
   \[1:4\]
  done clear
  C)
   \[1:2\]         
  done clear
  D)
   \[1:\sqrt{2}\]
  done clear
  View Answer play_arrow

• question_answer3) One mole of an ideal gas at an initial temperature of T K does 6R joules of work adiabatically. If the ratio of specific heats of this gas at constant pressure and at constant volume is 5/3, the final temperature of gas will be
  A)
   \[(T+2.4)K\]
  done clear
  B)
   \[(T-2.4)K\]
  done clear
  C)
   \[(T+4)K\]
  done clear
  D)
   \[(T-4)K\]
  done clear
  View Answer play_arrow

• question_answer4) A battery is charged at a potential of 15 V for 8 H when the current flowing is 10 A. The battery on discharge supplies a current of 5 A for 15 H. The mean terminal voltage during discharge is 14 V. The watt-hour efficiency of the battery is
  A)
   82.5%       
  done clear
  B)
   80%    
  done clear
  C)
   90%          
  done clear
  D)
   87.5%
  done clear
  View Answer play_arrow

• question_answer5) Resistances n, each of r ohm, when connected in parallel give an equivalent resistance of R ohm. If these resistances were connected in series, the combination would have a resistance in ohms, equal to
  A)
   \[{{n}^{2}}/R\]
  done clear
  B)
   \[R/{{n}^{2}}\]
  done clear
  C)
   \[R/n\]
  done clear
  D)
   \[nR\]
  done clear
  View Answer play_arrow

• question_answer6) The unit of permittivity of free space,\[{{\varepsilon }_{0}},\]is
  A)
   coulomb/newton-metre
  done clear
  B)
   \[newton-\text{ }metr{{e}^{2}}/coulom{{b}^{2}}\]
  done clear
  C)
   \[coulom{{b}^{2}}/\text{ }newton-metr{{e}^{2}}\]
  done clear
  D)
   \[coulom{{b}^{2}}/{{(newton-metre)}^{2}}\]
  done clear
  View Answer play_arrow

• question_answer7) Five equal resistances each of resistance R are connected as shown in the figure. A battery of V volts is connected between A and B. The current flowing in AFCEB will be
  A)
   \[\frac{3V}{R}\]
  done clear
  B)
   \[\frac{V}{R}\]
  done clear
  C)
   \[\frac{V}{2R}\]
  done clear
  D)
   \[\frac{2V}{R}\]
  done clear
  View Answer play_arrow

• question_answer8) When three identical bulbs of 60 W, 200 V rating are connected in , series to a 200 V supply, the power drawn by them will be
  A)
   60 W          
  done clear
  B)
   180 W
  done clear
  C)
   10 W
  done clear
  D)
   20 W
  done clear
  View Answer play_arrow

• question_answer9) A galvanometer acting as a voltmeter will have
  A)
   a high resistance in parallel with its coil
  done clear
  B)
   a high resistance in series with its coil
  done clear
  C)
   a low resistance in parallel with its coil
  done clear
  D)
   a low resistance in series with its coil
  done clear
  View Answer play_arrow

• question_answer10) A galvanometer of\[50\,\Omega \]resistance has 25 divisions. A current of\[4\times {{10}^{-4}}\]A gives a deflection of one division. To convert this galvanometer into a voltmeter having a range of 25 V, it should be connected with a resistance of
  A)
  \[2500\,\Omega \]as a shunt
  done clear
  B)
  \[245\,\Omega \]as a shunt
  done clear
  C)
  \[2550\,\Omega \]in series
  done clear
  D)
  \[2450\,\Omega \]in series
  done clear
  View Answer play_arrow

• question_answer11) If\[{{\lambda }_{m}}\]denotes the wavelength at which the radiative emission from a black body at a temperature T K is maximum, then
  A)
   \[{{\lambda }_{m}}\propto {{T}^{4}}\]
  done clear
  B)
  \[{{\lambda }_{m}}\]is independent of T
  done clear
  C)
   \[{{\lambda }_{m}}\propto T\]
  done clear
  D)
   \[{{\lambda }_{m}}\propto {{T}^{-1}}\]
  done clear
  View Answer play_arrow

• question_answer12) The ratio of the radii of gyration of a circular disc about a tangential axis in the plane of the disc and of a circular ring of the same radius about a tangential axis in the plane of the ring is
  A)
   \[2:3\]          
  done clear
  B)
   \[2:1\]
  done clear
  C)
   \[\sqrt{5}:\sqrt{6}\]        
  done clear
  D)
   \[1:\sqrt{2}\]
  done clear
  View Answer play_arrow

• question_answer13) A round disc of moment of inertia\[{{I}_{2}}\]about its axis perpendicular to its plane and passing through its centre is placed over another disc of moment of inertia\[{{I}_{1}}\]rotating with an angular velocity co about the same axis. The final angular velocity of the combination of discs is
  A)
   \[\frac{{{I}_{2}}\omega }{{{I}_{1}}+{{I}_{2}}}\]
  done clear
  B)
   \[\omega \]
  done clear
  C)
   \[\frac{{{I}_{1}}\omega }{{{I}_{1}}+{{I}_{2}}}\]
  done clear
  D)
   \[\frac{({{I}_{1}}+{{I}_{2}})\omega }{{{I}_{1}}}\]
  done clear
  View Answer play_arrow

• question_answer14) An electric dipole has the magnitude of its charge as q and its dipole moment is p. It is placed in a uniform electric field E. If its dipole moment is along the direction of the field, the force on it and its potential energy are respectively
  A)
   2qE and minimum
  done clear
  B)
   qE and pE
  done clear
  C)
   zero and minimum
  done clear
  D)
   qE and maximum
  done clear
  View Answer play_arrow

• question_answer15) A coil of 40 H inductance is connected in series with a resistance of \[8\,\Omega \]and the combination is joined to the terminals of a 2 V battery. The time constant of the circuit is
  A)
   5 s           
  done clear
  B)
   \[\frac{1}{5}s\]
  done clear
  C)
   40 s          
  done clear
  D)
   20 s
  done clear
  View Answer play_arrow

• question_answer16) A 6 V battery is connected to the terminals of a three metre long wire of uniform thickness and resistance of\[100\text{ }\Omega \]. The difference of potential between two points on the wire separated by a distance of 50 cm will be
  A)
   2 V            
  done clear
  B)
   3 V
  done clear
  C)
   1 V             
  done clear
  D)
   1.5 V
  done clear
  View Answer play_arrow

• question_answer17) According to Einsteins photoelectric equation the graph between the kinetic energy of photoelectrons ejected and the frequency of incident radiation is
  A)
   
  done clear
  B)
   
  done clear
  C)
   
  done clear
  D)
   
  done clear
  View Answer play_arrow

• question_answer18) A nucleus represented by the symbol\[_{z}^{A}X\]has
  A)
   Z neutrons and A - Z protons
  done clear
  B)
   Z protons and A-Z neutrons
  done clear
  C)
   Z protons and A neutrons
  done clear
  D)
   A protons and Z ~ A neutrons
  done clear
  View Answer play_arrow

• question_answer19) The dimensions of universal gravitational constant are
  A)
   \[[{{M}^{-1}}{{L}^{3}}{{T}^{-2}}]\]
  done clear
  B)
   \[[M{{L}^{2}}{{T}^{-1}}]\]
  done clear
  C)
   \[[{{M}^{-2}}{{L}^{3}}{{T}^{-2}}]\]
  done clear
  D)
   \[[{{M}^{-2}}{{L}^{2}}{{T}^{-1}}]\]
  done clear
  View Answer play_arrow

• question_answer20) If in a nuclear fusion process, the masses of the fusing nuclei be\[{{m}_{1}}\]and\[{{m}_{2}}\]and the mass of the resultant nucleus be\[{{m}_{3}},\]then
  A)
   \[{{m}_{3}}={{m}_{1}}+{{m}_{2}}\]
  done clear
  B)
   \[{{m}_{3}}=|{{m}_{1}}-{{m}_{2}}|\]
  done clear
  C)
   \[{{m}_{3}}<({{m}_{1}}+{{m}_{2}})\]
  done clear
  D)
   \[{{m}_{3}}>({{m}_{1}}+{{m}_{2}})\]
  done clear
  View Answer play_arrow

• question_answer21) In semiconductors at a room temperature
  A)
   the valence band is partially empty and the conduction band is partially filled
  done clear
  B)
   the valence band is completely filled and the conduction band is partially filled
  done clear
  C)
   the valence band is completely filled
  done clear
  D)
   the conduction band is completely empty
  done clear
  View Answer play_arrow

• question_answer22) The peak voltage in the output of a half-wave diode rectifier fed with a sinusoidal signal without filter is 10 V. The DC component of the output voltage is
  A)
   \[\frac{10}{\sqrt{2}}V\]
  done clear
  B)
   \[\frac{10}{\pi }V\]
  done clear
  C)
   \[10\,V\]
  done clear
  D)
   \[\frac{20}{\pi }\,V\]
  done clear
  View Answer play_arrow

• question_answer23) A mass of 0.5 kg moving with a speed of 1.5 m/s on a horizontal smooth surface, collides with a nearly weightless spring of force constant\[k=50\]N/m The maximum compression of the spring would be
  A)
   0.15 m          
  done clear
  B)
   0.12 m
  done clear
  C)
   1.5 m            
  done clear
  D)
   0.5 m
  done clear
  View Answer play_arrow

• question_answer24) A 5 A fuse wire can withstand a maximum power of 1 W in circuit. The resistance of the fuse wire is
  A)
   \[0.2\,\Omega \]         
  done clear
  B)
   \[5\,\Omega \]
  done clear
  C)
   \[0.4\,\Omega \]          
  done clear
  D)
   \[0.04\,\Omega \]
  done clear
  View Answer play_arrow

• question_answer25) In a p-n junction photo cell, the value of the photo-electromotive  force  produced  by monochromatic light is proportional to the
  A)
   barrier voltage at the p-n junction
  done clear
  B)
   intensity of the light falling on the cell
  done clear
  C)
   frequency of the light failing on the cell
  done clear
  D)
   voltage applied at the p-n junction
  done clear
  View Answer play_arrow

• question_answer26) The Bohr model of atoms
  A)
   assumes that the angular momentum of electrons is quantized
  done clear
  B)
   uses Einsteins photoelectric equation
  done clear
  C)
   predicts continuous emission spectra for atoms
  done clear
  D)
   predicts the same emission spectra for all types of atoms
  done clear
  View Answer play_arrow

• question_answer27) The coefficient of static friction,\[{{\mu }_{s}},\]between block A of mass 2 kg and the table as shown in the figure, is 0.2. What would be the maximum mass value of block B so that the two blocks do not move ? The string and the pulley are assumed to be smooth and massless \[(g=10\text{ }m/{{s}^{2}})\]
  A)
   2.0kg           
  done clear
  B)
   4.0kg
  done clear
  C)
   0.2kg           
  done clear
  D)
   0.4kg
  done clear
  View Answer play_arrow

• question_answer28) Which one of the following statements is true for the speed v and the acceleration a of a particle executing simple harmonic motion?
  A)
   When v is maximum, a is maximum
  done clear
  B)
   Value of a is zero, whatever may be the, value of v
  done clear
  C)
   When v is zero, a is zero
  done clear
  D)
   When v is maximum, a is zero
  done clear
  View Answer play_arrow

• question_answer29) Two springs of spring constants\[{{k}_{1}}\]and\[{{k}_{2}}\]are joined in series. The effective spring constant of the combination is given by
  A)
   \[\sqrt{{{k}_{1}}{{k}_{2}}}\]
  done clear
  B)
   \[({{k}_{1}}+{{k}_{2}})/2\]
  done clear
  C)
   \[{{k}_{1}}+{{k}_{2}}\]
  done clear
  D)
   \[{{k}_{1}}{{k}_{2}}/({{k}_{1}}+{{k}_{2}})\]
  done clear
  View Answer play_arrow

• question_answer30) Of the diodes shown in the following diagrams, which one is reverse biased?
  A)
   
  done clear
  B)
   
  done clear
  C)
   
  done clear
  D)
   
  done clear
  View Answer play_arrow

• question_answer31) A wheel having moment of inertia\[2\text{ }kg-{{m}^{2}}\]about its vertical axis, rotates at the rate of 60 rpm aboutthis axis. The torque which can stop the wheels rotation in one minute would be
  A)
   \[\frac{2\pi }{15}N-m\]
  done clear
  B)
   \[\frac{\pi }{12}N-m\]
  done clear
  C)
   \[\frac{\pi }{15}N-m\]        
  done clear
  D)
   \[\frac{\pi }{18}N-m\]
  done clear
  View Answer play_arrow

• question_answer32) Consider a system of two particles having masses\[{{m}_{1}}\]and\[{{m}_{2}}\]. If the particle of mass\[{{m}_{1}}\]is pushed towards the mass centre  of particles through a distance d, by what distance would the particle of mass\[{{m}_{2}}\]move so as to keep the mass centre of particles at the original position?
  A)
   \[\frac{{{m}_{1}}}{{{m}_{1}}+{{m}_{2}}}d\]
  done clear
  B)
   \[\frac{{{m}_{1}}}{{{m}_{2}}}d\]
  done clear
  C)
   \[d\]
  done clear
  D)
   \[\frac{{{m}_{2}}}{{{m}_{1}}}d\]
  done clear
  View Answer play_arrow

• question_answer33) If\[|\overrightarrow{A}\times \overrightarrow{B}|=\sqrt{3}\,\overrightarrow{A}.\overrightarrow{B},\]then the value of\[|\overrightarrow{A}+\overrightarrow{B}|\]is
  A)
   \[{{({{A}^{2}}+{{B}^{2}}+AB)}^{1/2}}\]
  done clear
  B)
   \[{{\left( {{A}^{2}}+{{B}^{2}}+\frac{AB}{\sqrt{3}} \right)}^{1/2}}\]
  done clear
  C)
   \[A+B\]
  done clear
  D)
   \[{{({{A}^{2}}+{{B}^{2}}+\sqrt{3}AB)}^{1/2}}\]
  done clear
  View Answer play_arrow

• question_answer34) A car is moving towards a high cliff. The car driver sounds a horn of frequency\[f\]. The reflected sound heard by the driver has a frequency\[2f\]. If\[v\]be the velocity of sound, then the velocity of the car, in the same velocity units, will be
  A)
   \[\frac{v}{\sqrt{2}}\]
  done clear
  B)
   \[\frac{v}{3}\]
  done clear
  C)
   \[\frac{v}{4}\]
  done clear
  D)
   \[\frac{v}{2}\]
  done clear
  View Answer play_arrow

• question_answer35) A beam of light composed of red and green rays is incident obliquely at a point on the face of a rectangular glass slab. When coming out on the opposite parallel face, the red and green rays emerge from
  A)
   two points propagating in two different non-parallel directions
  done clear
  B)
   two points propagating in two different parallel directions
  done clear
  C)
   one point propagating in two different directions
  done clear
  D)
   one point propagating in the same direction.
  done clear
  View Answer play_arrow

• question_answer36) The density of newly discovered planet is twice that of earth. The acceleration due to gravity at the surface of the planet is equal to that at the surface of the earth. If the radius of the earth is R, the radius of the planet would be
  A)
   \[2R\]
  done clear
  B)
   \[4R\]
  done clear
  C)
   \[\frac{1}{4}R\]
  done clear
  D)
   \[\frac{1}{2}R\]
  done clear
  View Answer play_arrow

• question_answer37) The refractive index of the material of a prism is \[\sqrt{2}\]and its refracting angle is\[30{}^\circ \]. One of the refracting surfaces of the prism is made a mirror inwards. A beam of monochromatic light entering the prism from the other face will retrace its path after reflection from the mirrored surface, if its angle of incidence on the prism is
  A)
   \[45{}^\circ \]             
  done clear
  B)
   \[60{}^\circ \]
  done clear
  C)
   \[0{}^\circ \]             
  done clear
  D)
   \[30{}^\circ \]
  done clear
  View Answer play_arrow

• question_answer38) A stone is tied to a string of length\[l\]and is whirled in a vertical circle with the other end of the string as the centre. At a certain instant of time, the stone is at its lowest position and has a speed u. The magnitude of the change in velocity as it reaches a position where the string is horizontal (g being acceleration due to gravity) is
  A)
   \[\sqrt{2({{u}^{2}}-gl)}\]
  done clear
  B)
   \[\sqrt{{{u}^{2}}-gl}\]
  done clear
  C)
   \[u-\sqrt{{{u}^{2}}-2gl}\]
  done clear
  D)
   \[\sqrt{2gl}\]
  done clear
  View Answer play_arrow

• question_answer39) A particle of mass\[{{m}_{1}}\]is moving with a velocity\[{{v}_{1}}\] and another particle of mass\[{{m}_{2}}\]is moving with a velocity\[{{v}_{2}}\]. Both of them have the same momentum but their different kinetic energies are\[{{E}_{1}}\]and\[{{E}_{2}}\]respectively. If\[{{m}_{1}}>{{m}_{2}},\]then
  A)
   \[{{E}_{1}}<{{E}_{2}}\]
  done clear
  B)
   \[\frac{{{E}_{1}}}{{{E}_{2}}}=\frac{{{m}_{1}}}{{{m}_{2}}}\]
  done clear
  C)
   \[{{E}_{1}}>{{E}_{2}}\]
  done clear
  D)
   \[{{E}_{1}}={{E}_{2}}\]
  done clear
  View Answer play_arrow

• question_answer40) A bullet of mass 2g is having a charge of\[2\mu C\]. Through what potential difference must it be accelerated, starting from rest, to acquire a speed of 10 m/s?
  A)
   5kV
  done clear
  B)
   50 kV
  done clear
  C)
   5V
  done clear
  D)
   50V
  done clear
  View Answer play_arrow

• question_answer41) . In India electricity is supplied for domestic use at 220 V. It is supplied at 110 V in USA. If the resistance of a 60 W bulb for use in India is\[R,\] the resistance of a 60 W bulb for use in USA will be
  A)
   \[R\]
  done clear
  B)
   \[2R\]
  done clear
  C)
   \[\frac{R}{4}\]
  done clear
  D)
   \[\frac{R}{2}\]
  done clear
  View Answer play_arrow

• question_answer42) The magnetic flux through a circuit of resistance R changes by an amount\[\Delta \phi \]in a time At. Then the total quantity of electric charge Q that passes any point in the circuit during the time Ac is represented by
  A)
   \[Q=\frac{1}{R}.\frac{\Delta \phi }{\Delta t}\]
  done clear
  B)
   \[Q=\frac{\Delta \phi }{R}\]
  done clear
  C)
   \[Q=\frac{\Delta \phi }{\Delta t}\]
  done clear
  D)
   \[Q=R.\frac{\Delta \phi }{\Delta t}\]
  done clear
  View Answer play_arrow

• question_answer43) The equation of state for 5 g of oxygen at a pressure P and temperature T, when occupying a volume V, will be
  A)
   \[PV=(5/32)RT\]
  done clear
  B)
   \[PV=5RT\]
  done clear
  C)
   \[PV=(5/2)RT\]
  done clear
  D)
   \[PV=(5/16)RT\]
  done clear
  View Answer play_arrow

• question_answer44) The half-life of radium is about 1600 years. Of 100 g of radium existing now, 25 g will remain unchanged after
  A)
   4800 yr       
  done clear
  B)
   6400 yr
  done clear
  C)
   2400 yr        
  done clear
  D)
   3200 yr
  done clear
  View Answer play_arrow

• question_answer45) \[{{M}_{p}}\]denotes the mass of a proton and\[{{M}_{n}}\]that of a neutron. A given nucleus, of binding energy B, contains Z protons and N neutrons. The mass M(N, Z) of the nucleus is given by
  A)
   \[M(N,Z)=N{{M}_{n}}+Z{{M}_{p}}-B{{c}^{2}}\]
  done clear
  B)
   \[M(N,Z)=N{{M}_{n}}+Z{{M}_{p}}+B{{c}^{2}}\]
  done clear
  C)
   \[M(N,Z)=N{{M}_{n}}+Z{{M}_{p}}-B/{{c}^{2}}\]
  done clear
  D)
   \[M(N,Z)=N{{M}_{n}}+Z{{M}_{p}}+B/{{c}^{2}}\]
  done clear
  View Answer play_arrow

• question_answer46) The phase difference between two waves, represented by \[{{y}_{1}}={{10}^{-6}}\sin [100t+(x/50)+0.5]m\] \[{{y}_{2}}={{10}^{-6}}\cos [100t+(x/50)]m\] where\[x\]is expressed in metres and t is expressed in seconds, is approximately
  A)
   1.07rad        
  done clear
  B)
   2.07 rad
  done clear
  C)
   0.5 rad         
  done clear
  D)
   1.5 rad
  done clear
  View Answer play_arrow

• question_answer47) A telescope has an objective lens of 10 cm diameter and is situated at a distance of one kilometre from two objects. The minimum distance between these two objects, which can be resolved by the telescope, when the mean wavelength of light is 5000 A, of the order of
  A)
   0.5m          
  done clear
  B)
   5m
  done clear
  C)
   5 mm          
  done clear
  D)
   5 cm
  done clear
  View Answer play_arrow

• question_answer48) A block of mass m is placed on a smooth wedge of inclination 9. The whole system is accelerated horizontally so that the block does not slip on the wedge. The force exerted by the wedge on the block (g is acceleration due to gravity) will be
  A)
   \[mg\text{ }cos\theta \]       
  done clear
  B)
   \[mg\text{ }\sin \,\theta \]
  done clear
  C)
   \[mg\]            
  done clear
  D)
   \[mg/cos\,\theta \]
  done clear
  View Answer play_arrow

• question_answer49) Three particles, each of mass m grams situated at the vertices of an equilateral triangle ABC of side I cm (as shown in the figure). The moment of inertia of the system about a line AX perpendicular to AB and in the plane of ABC, in gram\[-c{{m}^{2}}\]units will be
  A)
   \[(3/4)m{{l}^{2}}\]
  done clear
  B)
   \[2m{{l}^{2}}\]
  done clear
  C)
   \[(5/4)m{{l}^{2}}\]
  done clear
  D)
   \[(3/2)m{{l}^{2}}\]
  done clear
  View Answer play_arrow

• question_answer50) Energy\[E\]of a hydrogen atom with principal quantum number n is given by\[E=\frac{-13.6}{{{n}^{2}}}eV\]. The energy of a photon ejected when the electron jumps from\[n=3\]state to\[n=2\]state of hydrogen, is approximately
  A)
   1.5eV          
  done clear
  B)
   0.85 eV
  done clear
  C)
   3.4 eV          
  done clear
  D)
   1.9eV
  done clear
  View Answer play_arrow

• question_answer51) Which of the following processes is reversible?
  A)
   Transfer of heat by radiation
  done clear
  B)
   Electrical heating of a nichrome wire
  done clear
  C)
   Transfer of heat by conduction
  done clear
  D)
   Isothermal compression
  done clear
  View Answer play_arrow

• question_answer52) Copper has face-centred cubic (fee) lattice with interatomic spacing equal to\[2.54\overset{o}{\mathop{\text{A}}}\,\]. The value of lattice constant for this lattice is
  A)
   \[1.27\overset{o}{\mathop{\text{A}}}\,\]          
  done clear
  B)
   \[5.08\overset{o}{\mathop{\text{A}}}\,\]
  done clear
  C)
   \[2.54\overset{o}{\mathop{\text{A}}}\,\]          
  done clear
  D)
   \[3.59\overset{o}{\mathop{\text{A}}}\,\]
  done clear
  View Answer play_arrow

• question_answer53) Choose the only false statement from the following.
  A)
   Substances with energy gap of the order of 10 eV are insulators
  done clear
  B)
   The conductivity of a semiconductor increases with increase in temperature
  done clear
  C)
   In conductors the valence and conduction bands may overlap
  done clear
  D)
   The resistivity of a semicdnductor increases with increase in temperature
  done clear
  View Answer play_arrow

• question_answer54) A particle moves along a straight line OX. At a time t (in seconds) the distance\[x\] (in meters) of the particle from 0 is given by \[x=40+12t-{{t}^{3}}\] How long would the particle travel before coming to rest?
  A)
   24 m            
  done clear
  B)
   40 m
  done clear
  C)
   56m           
  done clear
  D)
   16m
  done clear
  View Answer play_arrow

• question_answer55) Two bodies, A (of mass 1 kg) and B (of mass 3 kg) are dropped from heights of 16 m and 25 m, respectively. The ratio of the time taken by them to reach the ground is
  A)
   5/4           
  done clear
  B)
   12/5
  done clear
  C)
   5/12           
  done clear
  D)
   4/5
  done clear
  View Answer play_arrow

• question_answer56) The angle of projection for which the horizontal range and the maximum height, of a projectile are equal is
  A)
   \[45{}^\circ \]
  done clear
  B)
   \[\theta ={{\tan }^{-1}}(4)\]
  done clear
  C)
   \[\theta ={{\tan }^{-1}}(0.25)\]
  done clear
  D)
   none of the above
  done clear
  View Answer play_arrow

• question_answer57) The magnetic susceptibility of a paramagnetic substance at\[-73{}^\circ C\]is 0.0060, then its value at \[-173{}^\circ C\]will be
  A)
   0.0030         
  done clear
  B)
   0.0120
  done clear
  C)
   0.0180         
  done clear
  D)
   0.0045
  done clear
  View Answer play_arrow

• question_answer58) In single slit diffraction pattern
  A)
   central fringe has negligible width than others
  done clear
  B)
   all fringes are of same width
  done clear
  C)
   central fringes do not exist
  done clear
  D)
   none of the above
  done clear
  View Answer play_arrow

• question_answer59) A hole is in the bottom of the tank having water. If total pressure at the bottom is 3 aim (1 atm \[={{10}^{5}}N-{{m}^{-2}}\]), then velocity of water flowing from hole is
  A)
   \[\sqrt{400}\,m{{s}^{-1}}\]      
  done clear
  B)
   \[\sqrt{600}\,m{{s}^{-1}}\]
  done clear
  C)
   \[\sqrt{60}\,m{{s}^{-1}}\]       
  done clear
  D)
   none of these
  done clear
  View Answer play_arrow

• question_answer60) When you make ice cubes, the entropy of water
  A)
   does not change
  done clear
  B)
   increases
  done clear
  C)
   decreases
  done clear
  D)
   may either increase or decrease depending on the process used
  done clear
  View Answer play_arrow

• question_answer61) Among the following, the pair in which the two species are not isostructural, is
  A)
  \[Si{{F}_{4}}\]and \[S{{F}_{4}}\]    
  done clear
  B)
  \[IO_{3}^{-}\]and\[Xe{{O}_{3}}\]
  done clear
  C)
   \[BH_{4}^{-}\]and \[NH_{4}^{+}\]   
  done clear
  D)
  \[PF_{6}^{-}\]and\[S{{F}_{6}}\]
  done clear
  View Answer play_arrow

• question_answer62) The rate of first order reaction is\[1.5\times {{10}^{-2}}\]mol \[{{L}^{-1}}mi{{n}^{-1}}\]at 0.5 M concentration of the reactant. The half-life of the reaction is
  A)
   0.383 min      
  done clear
  B)
   23.1 min
  done clear
  C)
   8.73 min       
  done clear
  D)
   7.53 min
  done clear
  View Answer play_arrow

• question_answer63) Which of the following is responsible for depletion of the ozone layer in the upper strata of the atmosphere?
  A)
   Polyhalogens   
  done clear
  B)
   Ferrocenes
  done clear
  C)
   Fullerenes      
  done clear
  D)
   Freons
  done clear
  View Answer play_arrow

• question_answer64) Which one of the following structures represents the peptide chain?
  A)
   \[-\overset{\begin{smallmatrix}  H \\  | \end{smallmatrix}}{\mathop{N}}\,-\underset{\begin{smallmatrix}  || \\  O \end{smallmatrix}}{\mathop{C}}\,-\underset{\begin{smallmatrix}  || \\  H \end{smallmatrix}}{\mathop{N}}\,-\underset{|}{\overset{|}{\mathop{C}}}\,-NH-\overset{\begin{smallmatrix}  O \\  || \end{smallmatrix}}{\mathop{C}}\,-NH-\]
  done clear
  B)
   \[-\overset{\begin{smallmatrix}  H \\  | \end{smallmatrix}}{\mathop{N}}\,-\underset{\begin{smallmatrix}  || \\  O \end{smallmatrix}}{\mathop{C}}\,-\underset{|}{\overset{|}{\mathop{C}}}\,-\underset{|}{\overset{|}{\mathop{C}}}\,-\underset{|}{\overset{|}{\mathop{C}}}\,-\overset{\begin{smallmatrix}  H \\  | \end{smallmatrix}}{\mathop{N}}\,-\underset{|}{\overset{|}{\mathop{C}}}\,-\underset{|}{\overset{|}{\mathop{C}}}\,-\underset{|}{\overset{|}{\mathop{C}}}\,\]
  done clear
  C)
   \[-\overset{\begin{smallmatrix}  H \\  | \end{smallmatrix}}{\mathop{N}}\,-\underset{|}{\overset{|}{\mathop{C}}}\,-\underset{\begin{smallmatrix}  || \\  O \end{smallmatrix}}{\mathop{C}}\,-\overset{\begin{smallmatrix}  H \\  | \end{smallmatrix}}{\mathop{N}}\,-\underset{|}{\overset{|}{\mathop{C}}}\,-\underset{\begin{smallmatrix}  || \\  O \end{smallmatrix}}{\mathop{C}}\,-\]\[\overset{\begin{smallmatrix}  H \\  | \end{smallmatrix}}{\mathop{N}}\,-\underset{|}{\overset{|}{\mathop{C}}}\,-\underset{\begin{smallmatrix}  || \\  O \end{smallmatrix}}{\mathop{C}}\,-\overset{\begin{smallmatrix}  H \\  | \end{smallmatrix}}{\mathop{N}}\,-\underset{|}{\overset{|}{\mathop{C}}}\,-\]
  done clear
  D)
   \[-\underset{|}{\overset{|}{\mathop{C}}}\,-\overset{\begin{smallmatrix}  H \\  | \end{smallmatrix}}{\mathop{N}}\,-\underset{|}{\overset{|}{\mathop{C}}}\,-\underset{|}{\overset{|}{\mathop{C}}}\,-\overset{\begin{smallmatrix}  O \\  || \end{smallmatrix}}{\mathop{C}}\,-\underset{\begin{smallmatrix}  | \\  H \end{smallmatrix}}{\mathop{N}}\,-\underset{|}{\overset{|}{\mathop{C}}}\,-\underset{|}{\overset{|}{\mathop{C}}}\,-\overset{\begin{smallmatrix}  H \\  | \end{smallmatrix}}{\mathop{N}}\,\]\[-\underset{\begin{smallmatrix}  || \\  O \end{smallmatrix}}{\mathop{C}}\,-\underset{|}{\overset{|}{\mathop{C}}}\,-\underset{|}{\overset{|}{\mathop{C}}}\,-\]
  done clear
  View Answer play_arrow

• question_answer65) Which one of the following can be oxidized to the corresponding carbonyl compound?
  A)
   2-hydroxy-propahe
  done clear
  B)
   ortho-nitro-phenol
  done clear
  C)
   Phenol
  done clear
  D)
   2-methyl-2-hydroxy-propane
  done clear
  View Answer play_arrow

• question_answer66) The\[-OH\]group of an alcohol or the\[-COOH\] group of a carboxylic acid can be replaced by \[-Cl\] using
  A)
   phosphorus pentachloride
  done clear
  B)
   hypochlorous acid
  done clear
  C)
   chlorine
  done clear
  D)
   hydrochloric acid
  done clear
  View Answer play_arrow

• question_answer67) Reaction of HBr with propene in the presence of peroxide gives
  A)
   isopropyi bromide
  done clear
  B)
   3-bromo propane
  done clear
  C)
   allyl bromide
  done clear
  D)
   n-propyl bromide
  done clear
  View Answer play_arrow

• question_answer68) Which is the best description of behaviour of bromine in the reaction given below? \[{{H}_{2}}O+B{{r}_{2}}\xrightarrow[{}]{{}}HBr+HOBr\]
  A)
   Proton accepted only
  done clear
  B)
   Both oxidised and reduced
  done clear
  C)
   Oxidised only
  done clear
  D)
   Reduced only
  done clear
  View Answer play_arrow

• question_answer69) In a regular octahedral molecule,\[M{{X}_{6}}\]the number of\[X-M-X\]bonds at\[180{}^\circ \]is
  A)
   three          
  done clear
  B)
   two
  done clear
  C)
   six            
  done clear
  D)
   four
  done clear
  View Answer play_arrow

• question_answer70) Chloropicrin is obtained by the reaction of
  A)
   steam on carbon tetrachloride
  done clear
  B)
   nitric acid on chlorobenzene
  done clear
  C)
   chlorineon picric acid
  done clear
  D)
   nitric acid on chloroform
  done clear
  View Answer play_arrow

• question_answer71) Aniline when diazotised in cold and then treated with dimethyl aniline gives a coloured product. Its structure would be:
  A)
   
  done clear
  B)
   
  done clear
  C)
   
  done clear
  D)
   
  done clear
  View Answer play_arrow

• question_answer72) The standard emf of a galvanic cell involving cell reaction with\[n=2\]is found to be 0.295 V at\[25{}^\circ C\].The equilibrium constant of the reaction would be
  A)
   \[2.0\times {{10}^{11}}\]      
  done clear
  B)
   \[4.0\times {{10}^{12}}\]
  done clear
  C)
   \[1.0\times {{10}^{2}}\]       
  done clear
  D)
   \[1.0\times {{10}^{10}}\] (Given:\[F=96500\text{ }C\text{ m}o{{l}^{-1}};\] \[R=8.314\text{ }J{{K}^{-1}}mo{{l}^{-1}}\])
  done clear
  View Answer play_arrow

• question_answer73) The solubility product of a sparingly soluble salt\[A{{X}_{2}}\]is\[3.2\times {{10}^{-11}}\]. Its solubility (in mol/L) is
  A)
   \[5.6\times {{10}^{-6}}\]     
  done clear
  B)
   \[3.1\times {{10}^{-4}}\]
  done clear
  C)
   \[2\times {{10}^{-4}}\]    
  done clear
  D)
   \[4\times {{10}^{-4}}\]
  done clear
  View Answer play_arrow

• question_answer74) Among\[K,Ca,Fe\]and\[Zn,\]the element which can. form more than one binary compound with chlorine is
  A)
   \[Fe\]   
  done clear
  B)
   \[Zn\] 
  done clear
  C)
   \[K\]  
  done clear
  D)
   \[Ca\]
  done clear
  View Answer play_arrow

• question_answer75) Which one of the following statements about the zeolites is false?
  A)
   They are used as cation exchangers
  done clear
  B)
   They have open structure which enables them to take up small molecules
  done clear
  C)
   Zeolites are aluminosilicates having three dimensional network
  done clear
  D)
   Some of the\[SiO_{4}^{4-}\]units are replaced by \[AlO_{4}^{5-}\]and\[AlO_{6}^{9-}\]ions in zeolites
  done clear
  View Answer play_arrow

• question_answer76) Which of the following will not form. a yellow precipitate on heating with an alkaline solution of iodine?
  A)
   \[C{{H}_{3}}CH(OH)C{{H}_{3}}\]
  done clear
  B)
   \[CH{{  }_{3}}C{{H}_{2}}CH(OH)C{{H}_{3}}\]
  done clear
  C)
   \[C{{H}_{3}}OH\]
  done clear
  D)
   \[C{{H}_{3}}C{{H}_{2}}OH\]
  done clear
  View Answer play_arrow

• question_answer77) A sequence of how many nucleotides in messenger RNA makes a codon for an ammo acid?
  A)
   Three
  done clear
  B)
   Four
  done clear
  C)
   One
  done clear
  D)
   Two
  done clear
  View Answer play_arrow

• question_answer78) Which of the following is considered to be an anticancer species?
  A)
   
  done clear
  B)
   
  done clear
  C)
   
  done clear
  D)
   
  done clear
  View Answer play_arrow

• question_answer79) The hormone that helps in the conversion of glucose to glycogen is
  A)
   cortisone       
  done clear
  B)
   bile acids
  done clear
  C)
   adrenaline      
  done clear
  D)
   insulin    
  done clear
  View Answer play_arrow

• question_answer80) If the bond energies of\[H-H,Br-Br\]and \[H-Br\]are 433, 192 and\[364\text{ }kJ\text{ }mo{{l}^{-1}}\]respectively, then\[\Delta H{}^\circ \]for the reaction \[{{H}_{2}}(g)+B{{r}_{2}}(g)\xrightarrow[{}]{{}}2HBr(g)\]is
  A)
   \[-261\text{ }kJ\]       
  done clear
  B)
   \[+103\text{ }kJ\]
  done clear
  C)
   \[+261\text{ }kJ\]       
  done clear
  D)
   \[-103kJ\]
  done clear
  View Answer play_arrow

• question_answer81) A compound formed by elements X and Y crystallizes in a cubic structure in which the X atoms are at the comers of a cube and the Y atoms are at the face-centres. The formula of the compound is
  A)
   \[X{{Y}_{3}}\]             
  done clear
  B)
   \[{{X}_{3}}Y\]
  done clear
  C)
   \[XY\]             
  done clear
  D)
   \[X{{Y}_{\,}}_{2}\]
  done clear
  View Answer play_arrow

• question_answer82) Standard enthalpy and standard entropy changes for the oxidation of ammonia at 298K   are\[-382.64kJ\,mo{{l}^{-1}}\]and\[-145.6\text{ }J{{K}^{-1}}mo{{l}^{-2}}\] respectively. Standard Gibbs energy change for the same reaction at 298K is
  A)
   \[-2221.1kJ\text{ }mo{{l}^{-1}}\]
  done clear
  B)
   \[-339.3\text{ }kJ\text{ }mo{{l}^{-1}}\]
  done clear
  C)
   \[-439.3\text{ }kJ\text{ }mo{{l}^{-1}}\]
  done clear
  D)
   \[-523.2\text{ }kJ\text{ }mo{{l}^{-1}}\]
  done clear
  View Answer play_arrow

• question_answer83) The maximum number of molecules is present in
  A)
   15 L of\[{{H}_{2}}\]gas at STP
  done clear
  B)
   5 L of\[{{N}_{2}}\]gas at STP
  done clear
  C)
   0.5 g of\[{{H}_{2}}\]gas
  done clear
  D)
   10 g of\[{{O}_{2}}\]gas
  done clear
  View Answer play_arrow

• question_answer84) The radioactive isotope\[_{27}^{60}Co\]which is used in the treatment of cancer can be made by\[(n,\text{ }p)\]reaction. For this reaction the target nucleus is
  A)
   \[_{28}^{59}Ni\]
  done clear
  B)
   \[_{27}^{59}Co\]
  done clear
  C)
   \[_{28}^{60}Ni\]
  done clear
  D)
   \[_{27}^{60}Co\]
  done clear
  View Answer play_arrow

• question_answer85) The enzyme which hydrolyses triglycerides to fatty acids and glycerol is called
  A)
   maltase         
  done clear
  B)
   lipase
  done clear
  C)
   zymase         
  done clear
  D)
   pepsin
  done clear
  View Answer play_arrow

• question_answer86) Which of the following coordination compounds would exhibit optical isomerism?
  A)
   Pentaamminenitrocobalt (III) iodide
  done clear
  B)
   Diamminedinitroplatinum (II)
  done clear
  C)
   trayy-dicyanobis (ethylenediamine)
  done clear
  D)
   Tris-(ethylendiamine) cobalt (III) bromide
  done clear
  View Answer play_arrow

• question_answer87) Among\[{{[Ni{{(CO)}_{4}}]}^{2-}},{{[Ni{{(CN)}_{4}}]}^{2-}},{{[NiC{{l}_{4}}]}^{2-}}\]species, the hybridisation states of the Ni atom are, respectively (At. no. of\[Ni=28\])
  A)
   \[s{{p}^{3}},\text{ }ds{{p}^{2}},ds{{p}^{2}}\]   
  done clear
  B)
   \[s{{p}^{3}},\text{ }ds{{p}^{2}},\text{ }s{{p}^{3}}\]
  done clear
  C)
   \[s{{p}^{3}},\text{ }s{{p}^{3}},\text{ }ds{{p}^{2}}\]    
  done clear
  D)
   \[ds{{p}^{2}},\text{ }s{{p}^{3}},\text{ }sp\]
  done clear
  View Answer play_arrow

• question_answer88) Among the following series of transition metal ions, the one in which all metal ions have\[3{{d}^{2}}\] \[3{{d}^{2}}\]electronic configuration is (At. no.: \[Ti=22;\] \[V=23;\text{ }Cr=24;\text{ }Mn=25\])
  A)
   \[T{{i}^{3+}},{{V}^{2+}},C{{r}^{3+}},M{{n}^{4+}}\]
  done clear
  B)
   \[T{{i}^{+}},{{V}^{4+}},C{{r}^{6+}},M{{n}^{7+}}\]
  done clear
  C)
   \[T{{i}^{4+}},{{V}^{3+}},C{{r}^{2+}},M{{n}^{3+}}\]
  done clear
  D)
   \[T{{i}^{2+}},{{V}^{3+}},C{{r}^{4+}},M{{n}^{5+}}\]
  done clear
  View Answer play_arrow

• question_answer89) The rapid change of pH near the stoichiometric point of an add base titration is the basis of indicator detection, pH of the solution is related to ratio of the concentrations of the conjugate acid (HIn) and base\[(I{{n}^{-}})\]forms of the indicator given by the expression
  A)
   \[\log \frac{[I{{n}^{-}}]}{[HIn]}=p{{K}_{In}}-pH\]
  done clear
  B)
   \[\log \frac{[H{{n}^{-}}]}{[I{{n}^{-}}]}=p{{K}_{In}}-pH\]
  done clear
  C)
   \[\log \frac{[HIn]}{[I{{n}^{-}}]}=pH-p{{K}_{In}}\]
  done clear
  D)
   \[\log \frac{[I{{n}^{-}}]}{[HIn]}=pH-p{{K}_{In}}\]
  done clear
  View Answer play_arrow

• question_answer90) \[C{{N}^{-}}\]is strong field ligand. This is due to the fact that
  A)
   it carries negative charge.
  done clear
  B)
   it is a pseudohalide
  done clear
  C)
   it can accept electrons from metal species
  done clear
  D)
   it forms high spin complexes with metal species
  done clear
  View Answer play_arrow

• question_answer91) Considering\[{{H}_{2}}O\]as weak field ligand, the number of unpaired electrons in\[{{[Mn{{({{H}_{2}}O)}_{6}}]}^{2+}}\]will be (At. no. of \[Mn=25\])
  A)
   three          
  done clear
  B)
   five
  done clear
  C)
   two            
  done clear
  D)
   four
  done clear
  View Answer play_arrow

• question_answer92) Considering entropy (S) as a thermodynamic parameter, the criterion for the spontaneity of any process is
  A)
   \[\Delta {{S}_{system}}+\Delta {{S}_{surroundings}}>0\]
  done clear
  B)
   \[\Delta {{S}_{system}}-\Delta {{S}_{surroundings}}>0\]
  done clear
  C)
   \[\Delta {{S}_{system}}>0\]only
  done clear
  D)
   \[\Delta {{S}_{surroundings}}>0\]only
  done clear
  View Answer play_arrow

• question_answer93) \[{{H}_{2}}O\]is dipolar, whereas\[Be{{F}_{2}}\]is not. It is because
  A)
   the electronegativity of F is greater than that of 0
  done clear
  B)
  \[{{H}_{2}}O\]involves hydrogen bonding whereas \[Be{{F}_{2}}\]is a discrete molecule
  done clear
  C)
   \[{{H}_{2}}O\]is linear and\[Be{{F}_{2}}\]is angular
  done clear
  D)
   \[{{H}_{2}}O\]is angular and\[Be{{F}_{2}}\]is linear
  done clear
  View Answer play_arrow

• question_answer94) Ionic radii are
  A)
   inversely proportional to effective nuclear charge
  done clear
  B)
   inversely proportional to square of effective nuclear charge
  done clear
  C)
   directly proportional to effective nuclear charge
  done clear
  D)
   directly proportional to square of effective nuclear charge
  done clear
  View Answer play_arrow

• question_answer95) Which of the following does not have a metal-carbon bond?
  A)
   \[Al{{(O{{C}_{2}}{{H}_{5}})}_{3}}\]
  done clear
  B)
   \[{{C}_{2}}{{H}_{5}}MgBr\]
  done clear
  C)
   \[K[Pt({{C}_{2}}{{H}_{4}})C{{l}_{3}}]\]
  done clear
  D)
   \[Ni{{(CO)}_{4}}\]
  done clear
  View Answer play_arrow

• question_answer96) Lanthanides are
  A)
   14 elements in the sixth period (atomic no. = 90 to 103) that are filling\[4f\]sub-level
  done clear
  B)
   14 elements in the seventh period (atomic no. = 90 to 103) that are filling\[5f\]sub-level
  done clear
  C)
   14 elements in the sixth period (atomic no.= 58 to 71) that are filling\[4f\]sub-level
  done clear
  D)
   14 elements in the seventh period (atomic no. = 58 to 71) that are filling\[4f\]sub-level
  done clear
  View Answer play_arrow

• question_answer97) Which of the following forms cationic micelles above certain concentration?
  A)
   Sodium ethyl sulphate
  done clear
  B)
   Sodium acetate
  done clear
  C)
   Urea
  done clear
  D)
   Cetyltrimethylammdnium bromide
  done clear
  View Answer play_arrow

• question_answer98) Which one of the following is a chain growth polymer?
  A)
   Starch          
  done clear
  B)
   Nucleic acid
  done clear
  C)
   Polystyrene     
  done clear
  D)
   Protein
  done clear
  View Answer play_arrow

• question_answer99) The correct statement in respect of protein haemoglobin is that it
  A)
   functions as a catalyst for biological reactions
  done clear
  B)
   maintains blood sugar level
  done clear
  C)
   act as an oxygen carrier in the blood
  done clear
  D)
   forms antibodies and offers resistance to diseases
  done clear
  View Answer play_arrow

• question_answer100) The frequency of radiation emitted when the electron falls from\[n=4\]to\[n=1\]in a hydrogen atom will be (Given ionisation energy of\[H=\]\[2.18\text{ }{{10}^{-18}}J\text{ }ato{{m}^{-1}}\]and\[h=6.625\times {{10}^{-34}}Js\])
  A)
   \[1.54\times {{10}^{15}}{{s}^{-1}}\]  
  done clear
  B)
   \[1.03\times {{10}^{15}}{{s}^{-1}}\]
  done clear
  C)
   \[3.08\times {{10}^{15}}{{s}^{-1}}\]  
  done clear
  D)
   \[2.00\times {{10}^{15}}{{s}^{-1}}\]
  done clear
  View Answer play_arrow

• question_answer101) Camphor is often used in molecular mass determination because
  A)
   it is readily available
  done clear
  B)
   it has a very high cryoscopic constant
  done clear
  C)
   it is volatile
  done clear
  D)
   it is solvent for organic substances
  done clear
  View Answer play_arrow

• question_answer102) In an octahedral structure, the pair of d orbitals involved in\[{{d}^{2}}s{{p}^{3}}\]hybridisation is
  A)
   \[{{d}_{{{x}^{2}}-{{y}^{2}}}},{{d}_{{{z}^{2}}}}\]
  done clear
  B)
   \[{{d}_{xy}},{{d}_{{{x}^{2}}-{{y}^{2}}}}\]
  done clear
  C)
   \[{{d}_{{{z}^{2}}}},{{d}_{xz}}\]
  done clear
  D)
   \[{{d}_{xy}},{{d}_{yz}}\]
  done clear
  View Answer play_arrow

• question_answer103) Number  of chiral  carbon  atoms   in\[{{\beta }_{D-(+)-}}\]glucose is
  A)
   five            
  done clear
  B)
   six
  done clear
  C)
   three           
  done clear
  D)
   four
  done clear
  View Answer play_arrow

• question_answer104) The helical structure of protein is stabilized by
  A)
   dipeptide bonds
  done clear
  B)
   hydrogen bonds
  done clear
  C)
   ether bonds     
  done clear
  D)
   peptide bonds
  done clear
  View Answer play_arrow

• question_answer105) Which of the, following is least reactive in a nucleophilic substitution reaction?
  A)
   \[{{(C{{H}_{3}})}_{3}}C-Cl\] 
  done clear
  B)
   \[C{{H}_{2}}=CHCl\]
  done clear
  C)
   \[C{{H}_{3}}C{{H}_{2}}Cl\]     
  done clear
  D)
   \[C{{H}_{2}}=CHC{{H}_{2}}Cl\]
  done clear
  View Answer play_arrow

• question_answer106) The work done during the expansion of a gas from a volume of\[\text{4 }d{{m}^{3}}\]to \[6\text{ }d{{m}^{3}}\]against a constant external pressure of 3 atm, is
  A)
   \[-6\text{ }J\]          
  done clear
  B)
   \[-608\text{ }J\]
  done clear
  C)
   \[+304\text{ }J\]        
  done clear
  D)
   \[-304\,J\]
  done clear
  View Answer play_arrow

• question_answer107) In\[Br{{F}_{3}}\]molecule, the lone pairs occupy equatorial positions to minimize
  A)
   lone pair-bond pair repulsion only
  done clear
  B)
   bond pair-bond pair repulsion only
  done clear
  C)
   lone pair-lone pair repulsion and lone pair-bond pair repulsion
  done clear
  D)
   lone pair-lone pair repulsion only
  done clear
  View Answer play_arrow

• question_answer108) Using anhydrous\[AlC{{l}_{3}}\]as catalyst, which one of   the   following   reactions   produce ethylbenzene (PhEt)?
  A)
   \[{{H}_{3}}C-C{{H}_{2}}OH+{{C}_{6}}{{H}_{6}}\]
  done clear
  B)
   \[C{{H}_{3}}-CH=C{{H}_{2}}+{{C}_{6}}{{H}_{6}}\]
  done clear
  C)
   \[{{H}_{2}}C=C{{H}_{2}}+{{C}_{6}}{{H}_{6}}\]
  done clear
  D)
   \[{{H}_{3}}C-C{{H}_{3}}+{{C}_{6}}{{H}_{6}}\]
  done clear
  View Answer play_arrow

• question_answer109) The molecular formula of diphenyl methane is \[{{C}_{13}}{{H}_{12}}\] How many structural isomers are possible when one of the hydrogen is replaced by a chlorine atom?
  A)
   6    
  done clear
  B)
   4
  done clear
  C)
   8   
  done clear
  D)
   7
  done clear
  View Answer play_arrow

• question_answer110) A solid compound X on heating gives\[C{{O}_{2}}\]gas and a residue. The residue mixed with water forms on passing an excess of\[C{{O}_{2}}\]through T in water, a clear solution, Z is obtained. On boiling Z compound X is reformed. The compound X is
  A)
   \[Ca{{(HC{{O}_{3}})}_{2}}\]    
  done clear
  B)
   \[CaC{{O}_{3}}\]
  done clear
  C)
   \[N{{a}_{2}}C{{O}_{3}}\]       
  done clear
  D)
   \[{{K}_{2}}C{{O}_{3}}\]
  done clear
  View Answer play_arrow

• question_answer111) lodoform test is not given by
  A)
   \[HCHO\]        
  done clear
  B)
   \[C{{H}_{3}}CHO\]
  done clear
  C)
   \[C{{H}_{3}}COC{{H}_{3}}\]    
  done clear
  D)
   \[{{C}_{2}}{{H}_{5}}OH\]
  done clear
  View Answer play_arrow

• question_answer112) When\[{{H}_{2}}S\]gas is passed in a metal sulphate solution in presence of\[N{{H}_{4}}OH,\]a white precipitate is produced. The metal is identified as
  A)
   Zn             
  done clear
  B)
   Fe
  done clear
  C)
  \[Pb\]            
  done clear
  D)
   Hg
  done clear
  View Answer play_arrow

• question_answer113) The value of amu is which of the following?
  A)
   \[1.57\times {{10}^{-24}}kg\]
  done clear
  B)
   \[1.66\times {{10}^{-24}}kg\]
  done clear
  C)
   \[1.99\times {{10}^{-24}}kg\]
  done clear
  D)
   \[1.66\times {{10}^{-24}}kg\]
  done clear
  View Answer play_arrow

• question_answer114) Sodium pyrophosphate is represented by which of the following formula?
  A)
   \[N{{a}_{2}}{{P}_{2}}{{O}_{4}}\]
  done clear
  B)
   \[N{{a}_{4}}{{P}_{2}}{{O}_{5}}\]
  done clear
  C)
   \[N{{a}_{4}}{{P}_{2}}{{O}_{7}}\]
  done clear
  D)
   \[N{{a}_{2}}{{P}_{2}}{{O}_{5}}\]
  done clear
  View Answer play_arrow

• question_answer115) The IUPAC name of the following compound is
  A)
   bicyclo [2.2.0] octane
  done clear
  B)
   bicyclo [0.2.2] hexane
  done clear
  C)
   bicyclo [2.1.1] hexane
  done clear
  D)
   bicyclo [2.2.0] hexane
  done clear
  View Answer play_arrow

• question_answer116) By which one of the following compounds both \[C{{H}_{4}}\]and\[C{{H}_{3}}-C{{H}_{3}}\]can be prepared in one step?
  A)
   \[C{{H}_{3}}I\]         
  done clear
  B)
   \[C{{H}_{3}}OH\]
  done clear
  C)
   \[C{{H}_{3}}C{{H}_{2}}I\]       
  done clear
  D)
   \[{{C}_{2}}{{H}_{5}}OH\]
  done clear
  View Answer play_arrow

• question_answer117) \[A+B=C+D\]. If initially the concentration of A and B are both equal but at equilibrium concentration of D will be twice of that of, A then what will be the equilibrium constant of reaction?
  A)
   4/9            
  done clear
  B)
   9/4
  done clear
  C)
   1/9             
  done clear
  D)
   4
  done clear
  View Answer play_arrow

• question_answer118) Which of the following is secondary pollutant?
  A)
   \[C{{O}_{2}}\]           
  done clear
  B)
   \[{{N}_{2}}O\]
  done clear
  C)
   PAN           
  done clear
  D)
   \[S{{O}_{2}}\]
  done clear
  View Answer play_arrow

• question_answer119) The geometry of\[Ni{{(CO)}_{4}}\]and \[Ni{{(PP{{h}_{3}})}_{2}}C{{l}_{2}}\]are
  A)
   both square planar
  done clear
  B)
   tetrahedral and square planar respectively
  done clear
  C)
   both tetrahedral
  done clear
  D)
   square planar and tetrahedral respectively
  done clear
  View Answer play_arrow

• question_answer120) In Williamsons synthesis, .ethoxyethane is prepared by
  A)
   passing ethanol over heated alumina
  done clear
  B)
   heating sodium ethoxide with ethyl bromide      
  done clear
  C)
   treating ethyl alcohol with excess of\[{{H}_{2}}S{{O}_{4}}\]at 430-440 K
  done clear
  D)
   heating ethanol with dry\[A{{g}_{2}}O\]
  done clear
  View Answer play_arrow

• question_answer121) One of the parents of a cross has mutation in its mitochondria. In that cross, that parent is taken as a male. During segregation of\[{{F}_{2}}\] progenies that mutation is found in
  A)
   one-third of the progenies
  done clear
  B)
   none of the progenies
  done clear
  C)
   all of the progenies
  done clear
  D)
   fifty percent of the progenies.
  done clear
  View Answer play_arrow

• question_answer122) When a freshwater protozoan possessing a contractile vacuole, is placed in a glass containing marine water, the vacuole will
  A)
   increase in number
  done clear
  B)
   disappear
  done clear
  C)
   increase in size
  done clear
  D)
   decrease in size
  done clear
  View Answer play_arrow

• question_answer123) Which one of the following is a very unique feature of the mammalian body?
  A)
   Homeothermy
  done clear
  B)
   Presence of diaphragm
  done clear
  C)
   Four chambered heart
  done clear
  D)
   Rib cage
  done clear
  View Answer play_arrow

• question_answer124) When\[C{{O}_{3}}\]concentration in blood increases, breathing becomes
  A)
   shallower and slow
  done clear
  B)
   there is no effect on breathing
  done clear
  C)
   slow and deep
  done clear
  D)
   faster and deeper
  done clear
  View Answer play_arrow

• question_answer125) Uricotelism is found in       
  A)
   mammals and birds
  done clear
  B)
   fishes and freshwater protozoans
  done clear
  C)
   birds, reptiles and insects
  done clear
  D)
   frogs and toads
  done clear
  View Answer play_arrow

• question_answer126) Duodenum has characteristic Brunners glands which secrete two hormones called
  A)
   kinase, oestrogen
  done clear
  B)
   secretin, cholecystokinin
  done clear
  C)
   prolactin, parathormone
  done clear
  D)
   estradion, progesterone
  done clear
  View Answer play_arrow

• question_answer127) Cancer cells are more easily damaged by radiation than normal cells because they are
  A)
   starved of mutation
  done clear
  B)
   undergoing rapid division
  done clear
  C)
   different in structure
  done clear
  D)
   non-dividing
  done clear
  View Answer play_arrow

• question_answer128) ATPase enzyme needed for muscle contraction is located in
  A)
   actinin          
  done clear
  B)
   troponin
  done clear
  C)
   myosin          
  done clear
  D)
   actin
  done clear
  View Answer play_arrow

• question_answer129) Which one of the following is not correctly matched?
  A)
   Glossina palpalis   - Sleeping sickness
  done clear
  B)
   Culexpipiens       -Filariasis
  done clear
  C)
   Aedes aegypti      - Yellow fever
  done clear
  D)
   Anopheles culifacies - Leishmaniasis
  done clear
  View Answer play_arrow

• question_answer130) Which one of the following pairs is not correctly matched?
  A)
   Screptomyces   - Antibiotic
  done clear
  B)
   Serratia       - Drug addiction
  done clear
  C)
   Spirulina       - Single cell protein
  done clear
  D)
   Rhizobium     - Biofertilizer
  done clear
  View Answer play_arrow

• question_answer131) A major component of gobar gas is
  A)
   ammonia      
  done clear
  B)
   methane
  done clear
  C)
   ethane         
  done clear
  D)
   butane
  done clear
  View Answer play_arrow

• question_answer132) A free living nitrogen-fixing cyanobacterium which can also form symbiotic association with the water fern Azolla is
  A)
   Tolypothrix     
  done clear
  B)
   Chlorella
  done clear
  C)
   Nostoc          
  done clear
  D)
   Anabaena
  done clear
  View Answer play_arrow

• question_answer133) In the ABO system of blood groups, if both antigens are present but no antibody, the blood group of the individual would be
  A)
   B    
  done clear
  B)
   \[O\]  
  done clear
  C)
   AB 
  done clear
  D)
   A
  done clear
  View Answer play_arrow

• question_answer134) Which one of the following pairs correctly matches a hormone with a disease resulting from its deficiency?
  A)
   Luteinizing hormone - Failure of ovulation
  done clear
  B)
   Insulin             - Diabetes insipidus
  done clear
  C)
   Thyroxine         - Tetany
  done clear
  D)
   Parathyroid hormone - Diabetes mellitus
  done clear
  View Answer play_arrow

• question_answer135) In a mutational event, when adenine is replaced by guanine, it is the case of
  A)
   frameshift mutation
  done clear
  B)
   transcription
  done clear
  C)
   transition
  done clear
  D)
   transversion
  done clear
  View Answer play_arrow

• question_answer136) An ovule which becomes curved so that the nucellus and embryo sac lie at right angles to the funicle is   
  A)
   hemitropous  
  done clear
  B)
   campylotropous
  done clear
  C)
   anatropous   
  done clear
  D)
   orthotropous
  done clear
  View Answer play_arrow

• question_answer137) Injury to vagus nerve in human is not likely to affect
  A)
   tongue movements
  done clear
  B)
   gastrointestinal movements
  done clear
  C)
   pancreatic secretion
  done clear
  D)
   cardiac movements
  done clear
  View Answer play_arrow

• question_answer138) Which of the following hormones is not a secretion product of human placenta?
  A)
   Human chorionic gonadotropin
  done clear
  B)
   Prolactin
  done clear
  C)
   Oestrogen
  done clear
  D)
   Progesterone
  done clear
  View Answer play_arrow

• question_answer139) Blood analysis of a patient reveals an unusually high quantity of carboxyhaemoglobin content. Which of the following conclusions is most likely to be correct? The patient has been in hailing polluted air containing usually high content of
  A)
   carbon disulphide
  done clear
  B)
   chloroform
  done clear
  C)
   carbon dioxide
  done clear
  D)
   carbon monoxide
  done clear
  View Answer play_arrow

• question_answer140) DNA finger printing refers to
  A)
   molecular analysis of profiles of DNA samples
  done clear
  B)
   analysis of DNA samples using imprinting device
  done clear
  C)
   techniques used for molecular analysis of different specimens of DNA
  done clear
  D)
   techniques used for identification of finger prints of individuals
  done clear
  View Answer play_arrow

• question_answer141) Flagella of prokaryotic and eukaryotic cells differ in
  A)
   type of movement and placement in cell
  done clear
  B)
   location in cell and mode of functioning
  done clear
  C)
   micro-tubular organisation and type of movement
  done clear
  D)
   micro-tubular organisation and function
  done clear
  View Answer play_arrow

• question_answer142) In which one of the following enzymes, copper is necessarily associated as an activator?
  A)
   Carbonic anhydrase.
  done clear
  B)
   Tryptophanase
  done clear
  C)
   Lactic dehydrogenase
  done clear
  D)
   Tyrosinase
  done clear
  View Answer play_arrow

• question_answer143) Which one of the following is the correct matching of a vitamin, its nature and its deficiency disease?
  A)
   Vitamin-A        -         Fat soluble Night blindness
  done clear
  B)
   Vitamin-K        -         Fat soluble Beri-beri
  done clear
  C)
   Vitamin-A         -        Fat soluble Beri-beri
  done clear
  D)
   Vitamin-K         -        Water soluble Pellagra
  done clear
  View Answer play_arrow

• question_answer144) Lack of independent assortment of two genes A and B in fruit fly Drosophila is due to
  A)
   repulsion       
  done clear
  B)
   recombination
  done clear
  C)
   linkage         
  done clear
  D)
   crossing over
  done clear
  View Answer play_arrow

• question_answer145) In your opinion, which is the most effective way to conserve the plant diversity of an area?
  A)
   By tissue culture method
  done clear
  B)
   By creating biosphere reserve
  done clear
  C)
   By creating botanical garden
  done clear
  D)
   By developing seed bank
  done clear
  View Answer play_arrow

• question_answer146) Which of the following is expected to have the highest value\[(gm/{{m}^{2}}/yr)\]in a grassland ecosystem?
  A)
   Secondary Production (SP)
  done clear
  B)
   Tertiary Production (TP)
  done clear
  C)
   Gross Production (GP)
  done clear
  D)
   Net Production (NP)
  done clear
  View Answer play_arrow

• question_answer147) In 1984, the Bhopal gas tragedy took place because methyl isocyanate
  A)
   reacted with DDT
  done clear
  B)
   reacted with ammonia
  done clear
  C)
   reacted with\[C{{O}_{2}}\]
  done clear
  D)
   reacted with water
  done clear
  View Answer play_arrow

• question_answer148) If by radiation all nitrogenase enzymes are inactivated, then there will be no
  A)
   fixation of nitrogen in legumes
  done clear
  B)
   fixation of atmospheric nitrogen
  done clear
  C)
   conversion from nitrate to nitrite in legumes
  done clear
  D)
   conversion from ammonium to nitrate in soil
  done clear
  View Answer play_arrow

• question_answer149) Lead concentration in blood is considered alarming if it is
  A)
   \[20\mu g/100\,mL\]
  done clear
  B)
   \[30\mu g/100\,mL\]
  done clear
  C)
   \[4-6\mu g/100\,mL\]
  done clear
  D)
   \[10\mu g/100\,mL\]
  done clear
  View Answer play_arrow

• question_answer150) What kind of evidence suggested that man is more closely related with chimpanzee than with other hominoid apes?
  A)
   Evidence   from   DNA   from   sex chromosomes only
  done clear
  B)
   Comparis.on of chromosomes morphology only
  done clear
  C)
   Evidence from fossil remains and the fossil mitochondrial DNA alone
  done clear
  D)
   Evidence from DNA extracted from sex chromosome, autosomes and mitochondria
  done clear
  View Answer play_arrow

• question_answer151) Anthesis is a phenomenon which refers to
  A)
   reception of pollen by stigma
  done clear
  B)
   formation of pollen
  done clear
  C)
   development of anther
  done clear
  D)
   opening of flower bud
  done clear
  View Answer play_arrow

• question_answer152) One set of a plant was grown at 12 hours day and 12 hours night period cycles and it flowered while in the other set night phase was interrupted by flash of light and it did not produce flower. Under which one of the following categories will you place this plant?
  A)
   Long day       
  done clear
  B)
   Darkness neutral
  done clear
  C)
   Day neutral     
  done clear
  D)
   Short day
  done clear
  View Answer play_arrow

• question_answer153) In which one of the following pairs is the specific characteristic of soil not correctly matched?
  A)
   Laterite - Contains aluminium compound
  done clear
  B)
   Terra rossa - Most suitable for roses
  done clear
  C)
   Chemozems - Richest soil in the world
  done clear
  D)
   Black soil - Rich in calcium carbonate
  done clear
  View Answer play_arrow

• question_answer154) Recently Govt. of India has allowed mixing of alcohol in petrol. What is the amount of alcohol permitted for mixing in petrol?
  A)
   2.5%          
  done clear
  B)
   10-15%
  done clear
  C)
   10%           
  done clear
  D)
   5%
  done clear
  View Answer play_arrow

• question_answer155) In a longitudinal section of a root, starting from the tip upward the four zones occur in the following order
  A)
   root cap, cell division, cell enlargement, cell maturation
  done clear
  B)
   root cap, cell division, cell maturation, cell enlargement
  done clear
  C)
   cell division,  cell enlargement, cell maturation, root cap
  done clear
  D)
   cell division,   cell  maturation,  cell enlargement, root cap
  done clear
  View Answer play_arrow

• question_answer156) An ecosystem which can be easily damaged but can recover after some time if damaging effect stops, will be having
  A)
   low stability and high resilience
  done clear
  B)
   high stability and low resilience
  done clear
  C)
   low stability and low resilience
  done clear
  D)
   high stability and high resilience
  done clear
  View Answer play_arrow

• question_answer157) During transcription, the nucleotide sequence of the DNA strand that is being coded is ATACG, then the nucleotide sequence in the mRNA would be
  A)
   TATGC       
  done clear
  B)
   TCTGG
  done clear
  C)
   UAUGC       
  done clear
  D)
   UATGG
  done clear
  View Answer play_arrow

• question_answer158) Extranuclear inheritance is a consequence of presence of genes in
  A)
   mitochondria and chloroplasts
  done clear
  B)
   endoplasmic reticulum and mitochondria
  done clear
  C)
   ribosomes and chloroplast
  done clear
  D)
   lysosomes and ribosomes
  done clear
  View Answer play_arrow

• question_answer159) Which one of the following hormones is a modified amino acid?
  A)
   Epinephrine    
  done clear
  B)
   Progesterone
  done clear
  C)
   Prostaglandin   
  done clear
  D)
   Oestrogen
  done clear
  View Answer play_arrow

• question_answer160) Viruses that infect bacteria, multiply and cause their lysis, are called
  A)
   lysozymes       
  done clear
  B)
   lipolytic
  done clear
  C)
   lytic       
  done clear
  D)
   lysogenic
  done clear
  View Answer play_arrow

• question_answer161) The recessive genes located on X-chromosome in humans are always
  A)
   lethal
  done clear
  B)
   sub-lethal
  done clear
  C)
   expressed in males
  done clear
  D)
   expressed in females
  done clear
  View Answer play_arrow

• question_answer162) In\[{{C}_{3}}\]plants, the first stable product of photosynthesis during the dark reaction is
  A)
   malic acid
  done clear
  B)
   oxaloacetic acid
  done clear
  C)
   3-phosphoglyceric acid
  done clear
  D)
   phosphoglyceraldehyde
  done clear
  View Answer play_arrow

• question_answer163) Crossing over that results in genetic recombination in higher organisms occurs between
  A)
   sister chromatids of bivalent
  done clear
  B)
   non-sister chromatids of a bivalent
  done clear
  C)
   two daughter nuclei
  done clear
  D)
   two different bivalerits
  done clear
  View Answer play_arrow

• question_answer164) Which of the following statements is not true for retroviruses?
  A)
   DNA is not present at any stage in the life cycle of retroviruses
  done clear
  B)
   Retroviruses  carry  gene  for RNA dependent DNA polymerase
  done clear
  C)
   The   genetic   material   in   mature retroviruses is RNA
  done clear
  D)
   Retroviruses are causative agents for certain kinds of cancer in man
  done clear
  View Answer play_arrow

• question_answer165) Restriction endonucleases
  A)
   are present in mammalian cells for degradation of DNA when the cell dies
  done clear
  B)
   are used in genetic engineering for ligating two DNA molecules
  done clear
  C)
   are used for in vitro DNA synthesis
  done clear
  D)
   are synthesized by bacteria as part of their defence mechanism
  done clear
  View Answer play_arrow

• question_answer166) In the resting state of the neural membrane, diffusion due to concentration gradients, if allowed, would drive
  A)
  \[{{K}^{+}}\]into the cell
  done clear
  B)
   \[{{K}^{+}}\]and\[N{{a}^{+}}\]out of the cell
  done clear
  C)
  \[N{{a}^{+}}\]into the cell
  done clear
  D)
  \[N{{a}^{+}}\]out of the cell
  done clear
  View Answer play_arrow

• question_answer167) The maximum growth rate occurs in
  A)
   stationary phase
  done clear
  B)
   senescent phase
  done clear
  C)
   lag phase
  done clear
  D)
   exponential phase
  done clear
  View Answer play_arrow

• question_answer168) Diversification in plant life appeared
  A)
   due to long periods of evolutionary changes
  done clear
  B)
   due to abrupt mutations
  done clear
  C)
   suddenly on earth
  done clear
  D)
   by seed dispersal
  done clear
  View Answer play_arrow

• question_answer169) The technique of obtaining large number of plantlets by tissue culture method is called
  A)
   plantlet culture
  done clear
  B)
   organ culture
  done clear
  C)
   micro-propagation
  done clear
  D)
   macro-propagation
  done clear
  View Answer play_arrow

• question_answer170) Cell elongation in internodal regions of the green plants takes place due to
  A)
   indole acetic acid
  done clear
  B)
   cytokinins
  done clear
  C)
   gibberellins
  done clear
  D)
   ethylene
  done clear
  View Answer play_arrow

• question_answer171) A terrestrial animal must be able to
  A)
   excrete large amounts of water in urine
  done clear
  B)
   conserve water
  done clear
  C)
   actively pump salts out through the skin
  done clear
  D)
   excrete large amounts of salts in urine  
  done clear
  View Answer play_arrow

• question_answer172) A male human is heterozygous for autosomal genes A and B and is also hemizygous for haemophilic gene h. What proportion of his sperms will be abh?
  A)
   \[\frac{1}{8}\]
  done clear
  B)
   \[\frac{1}{32}\]
  done clear
  C)
   \[\frac{1}{16}\]
  done clear
  D)
   \[\frac{1}{4}\]
  done clear
  View Answer play_arrow

• question_answer173) Edible part of mango is                
  A)
   endocarp       
  done clear
  B)
   receptacle 
  done clear
  C)
   epicarp        
  done clear
  D)
   mesocarp  
  done clear
  View Answer play_arrow

• question_answer174) In chloroplasts, chlorophyll is present in the
  A)
   outer membrane   
  done clear
  B)
   inner membrane
  done clear
  C)
   thylakoids
  done clear
  D)
   stroma
  done clear
  View Answer play_arrow

• question_answer175) In glycolysis, during oxidation electrons are removed by
  A)
   ATP
  done clear
  B)
   glyceraldehyde-3-phosphate
  done clear
  C)
   \[NA{{D}^{+}}\]
  done clear
  D)
   molecular oxygen
  done clear
  View Answer play_arrow

• question_answer176) Dough kept over-night in warm weather becomes soft and spongy because of
  A)
   absorption of carbon dioxide from atmosphere
  done clear
  B)
   fermentation
  done clear
  C)
   cohesion
  done clear
  D)
   osmosis
  done clear
  View Answer play_arrow

• question_answer177) In the somatic cell cycle
  A)
   in\[{{G}_{1}}\] phase DNA content is double the amount of DNA present in the original cell
  done clear
  B)
   DNA replication takes place in S-phase
  done clear
  C)
   a short interphase is followed by a long mitotic phase
  done clear
  D)
   62 phase follows mitotic phase
  done clear
  View Answer play_arrow

• question_answer178) A nutritionally wild type organism, which does not require any additional growth supplement is known as
  A)
   phenotype      
  done clear
  B)
   holotype
  done clear
  C)
   auxotroph      
  done clear
  D)
   prototroph
  done clear
  View Answer play_arrow

• question_answer179) Which of the following propagates through leaf-tip?
  A)
   Walking fem    
  done clear
  B)
   Sprout-leaf plant
  done clear
  C)
   Marchantia     
  done clear
  D)
   Moss
  done clear
  View Answer play_arrow

• question_answer180) Common indicator organism of .water pollution is
  A)
   Lemna pancicostata
  done clear
  B)
   Eichhomia crassipes
  done clear
  C)
   Escherichia coli
  done clear
  D)
   Entamoeba histolytica
  done clear
  View Answer play_arrow

• question_answer181) ELISA is used to detect viruses, where
  A)
   DNA probes are required
  done clear
  B)
   southern blotting is done
  done clear
  C)
   alkaline phosphatase is the key reagent
  done clear
  D)
   catalase is the key reagent
  done clear
  View Answer play_arrow

• question_answer182) If you are provided with root-tips of onion in your class and are asked to count the chromosomes, which of the following stages can you most conveniently look into?
  A)
   Metaphase     
  done clear
  B)
   Telophase
  done clear
  C)
   Anaphase      
  done clear
  D)
   Prophase
  done clear
  View Answer play_arrow

• question_answer183) When a diploid female plant is crossed with a tetraploid male, the ploidy of endosperm cells in the resulting seed is
  A)
   tetraploidy      
  done clear
  B)
   pentaploidy
  done clear
  C)
   diploidy        
  done clear
  D)
   triploidy
  done clear
  View Answer play_arrow

• question_answer184) Indias wheat yield revolution in the 1960s was possible primarily due to
  A)
   hybrid seeds
  done clear
  B)
   increased chlorophyll content
  done clear
  C)
   mutations resulting in plant height reduction
  done clear
  D)
   quantitative trait mutations
  done clear
  View Answer play_arrow

• question_answer185) The most likely reason for the development of resistance against pesticides in insect damaging a crop is
  A)
   random mutations
  done clear
  B)
   genetic recombination
  done clear
  C)
   directed mutations
  done clear
  D)
   acquired lieritable changes
  done clear
  View Answer play_arrow

• question_answer186) The following ratio is generally constant for a given species
  A)
   \[A+G/C+T\]   
  done clear
  B)
   \[T+C/G+A\]
  done clear
  C)
   \[G+C/A+T\]   
  done clear
  D)
   \[A+C/T+G\]
  done clear
  View Answer play_arrow

• question_answer187) A self-fertilizing trihybrid plant forms
  A)
   8 different gametes and 64 different zygotes
  done clear
  B)
   4 different gametes and 16 different zygotes
  done clear
  C)
   8 different gametes and 16 different zygotes
  done clear
  D)
   8 different gametes and 32 different zygotes
  done clear
  View Answer play_arrow

• question_answer188) Lichens are well known combination of an alga and a fungus where fungus has
  A)
   a saprophytic relationship with the alga
  done clear
  B)
   an epiphytic relationship with the alga
  done clear
  C)
   a parasitic relationship with the alga
  done clear
  D)
   a symbiotic relationship with the alga
  done clear
  View Answer play_arrow

• question_answer189) In oogamy, fertilization involves
  A)
   a small non-motile female gamete and a large motile male gamete
  done clear
  B)
   a large non-motile female gamete and a small motile male gamete
  done clear
  C)
   a large non-motile female gamete and a small non-motile male gamete
  done clear
  D)
   a large motile female gamete and a small non-motile male gamete
  done clear
  View Answer play_arrow

• question_answer190) Which one of the following is a liying fossil?
  A)
   Cycas           
  done clear
  B)
   Moss
  done clear
  C)
   Saccharomyces  
  done clear
  D)
   Spirogyra
  done clear
  View Answer play_arrow

• question_answer191) Which form of RNA has a structure resembling clover leaf?
  A)
   \[rRNA\]        
  done clear
  B)
   \[hnRNA\]
  done clear
  C)
   \[mRNA\]        
  done clear
  D)
   \[tRNA\]
  done clear
  View Answer play_arrow

• question_answer192) The telomeres of eukaryotic chromosomes consists of short sequences of
  A)
   thymine rich repeats
  done clear
  B)
   cytosine rich repeats
  done clear
  C)
   adenine rich repeats
  done clear
  D)
   guanine rich repeats
  done clear
  View Answer play_arrow

• question_answer193) After a mutation at a genetic locus the character of an organism changes due to the change in
  A)
   protein structure
  done clear
  B)
   DNA replication
  done clear
  C)
   protein synthesis pattern
  done clear
  D)
   RNA transcription pattern
  done clear
  View Answer play_arrow

• question_answer194) During replication of a bacterial chromosome DNA synthesis starts from a replication origin site and
  A)
   RNA primers are involved
  done clear
  B)
   is facilitated by telomerase
  done clear
  C)
   moves in one direction of the site
  done clear
  D)
   moves in bi-directional way
  done clear
  View Answer play_arrow

• question_answer195) Plants adapted to low light intensity have
  A)
   larger photosynthetic unit size than the sun plants
  done clear
  B)
   higher rate of\[C{{O}_{3}}\]fixation than the sun plants
  done clear
  C)
   more extended root system
  done clear
  D)
   leaves modified to spines
  done clear
  View Answer play_arrow

• question_answer196) The Ti plasmid, is often used for making trans genie plants. This plasmid is found in
  A)
   Azotobacter
  done clear
  B)
   Rhizobium of the roots of leguminous plants
  done clear
  C)
   Agrobacterium
  done clear
  D)
   Yeast as a 2 u m plasmid
  done clear
  View Answer play_arrow

• question_answer197) According to Oparin, which one of the following was not present in the primitive atmosphere of the earth?
  A)
   Methane       
  done clear
  B)
   Oxygen
  done clear
  C)
   Hydrogen      
  done clear
  D)
   Water vapour
  done clear
  View Answer play_arrow

• question_answer198) The most thoroughly studied of the known bacteria-plant interactions is the
  A)
   cyanobacterial symbiosis with some. aquatic ferns
  done clear
  B)
   gall formation on certain angiosperms by Agrobacterium
  done clear
  C)
   nodulation of Sesbania stems by nitrogen fixing bacteria
  done clear
  D)
   plant growth stimulation by phosphate solublising bacteria
  done clear
  View Answer play_arrow

• question_answer199) In transgenics, expression of .transgene in target tissue is determined by
  A)
   enhancer
  done clear
  B)
   transgene
  done clear
  C)
   promoter       
  done clear
  D)
   reporter
  done clear
  View Answer play_arrow

• question_answer200) A normal woman whose father was colourblind is married to a normal man. The sons would be
  A)
   75% colourblind
  done clear
  B)
   50% colourblind
  done clear
  C)
   all normal      
  done clear
  D)
   all colourblind
  done clear
  View Answer play_arrow

• question_answer201) Directions: Choose the correct alternative to fill in the blank. Hardly had he arrived ...... it started raining.
  A)
   after           
  done clear
  B)
   than
  done clear
  C)
   when           
  done clear
  D)
   before
  done clear
  View Answer play_arrow

• question_answer202) Directions: Choose the correct alternative to fill in the blank. He was told not to worry ...... the matter.
  A)
   with            
  done clear
  B)
   for
  done clear
  C)
   about           
  done clear
  D)
   of
  done clear
  View Answer play_arrow

• question_answer203) Directions: Choose the correct alternative to fill in the blank. My friend has a strange habit of turning ...... at odd hours.
  A)
   over            
  done clear
  B)
   up
  done clear
  C)
   down         
  done clear
  D)
   out
  done clear
  View Answer play_arrow

• question_answer204) Directions: Choose the correct alternative to fill in the blank. You should adhere ......your principles.
  A)
   upon           
  done clear
  B)
   on
  done clear
  C)
   with            
  done clear
  D)
   to
  done clear
  View Answer play_arrow

• question_answer205) Directions: Choose the correct alternative to fill in the blank. Portia compared Mercy ...... the gentle rain from heaven.
  A)
   to               
  done clear
  B)
   by
  done clear
  C)
   with            
  done clear
  D)
   from
  done clear
  View Answer play_arrow

• question_answer206) Directions: Choose the alternative which best expresses the meaning of the idiom/phrase given in italics in the sentence. He will win this election hands down.
  A)
   win easily
  done clear
  B)
   win with a big margin
  done clear
  C)
   win with a narrow margin
  done clear
  D)
   win luckily
  done clear
  View Answer play_arrow

• question_answer207) Directions: Choose the alternative which best expresses the meaning of the idiom/phrase given in italics in the sentence. He has been working on and off for several years on this research project.
  A)
   at intervals      
  done clear
  B)
   continuously
  done clear
  C)
   rarely           
  done clear
  D)
   painstakingly
  done clear
  View Answer play_arrow

• question_answer208) Directions: Choose the alternative which best expresses the meaning of the idiom/phrase given in italics in the sentence. He was a king who ruled his subjects with a high hand.
  A)
   oppressively    
  done clear
  B)
   kindly
  done clear
  C)
   conveniently    
  done clear
  D)
   sympathetically
  done clear
  View Answer play_arrow

• question_answer209) Directions: Choose the alternative which best expresses the meaning of the idiom/phrase given in italics in the sentence. It will be wise on your part to let the bygones be bygones.
  A)
   resist the past   
  done clear
  B)
   ignore the past
  done clear
  C)
   recollect the past
  done clear
  D)
   revive the past
  done clear
  View Answer play_arrow

• question_answer210) Directions: Choose the alternative which best expresses the meaning of the idiom/phrase given in italics in the sentence. He always says that he will help, but when it comes to the crunch, he does nothing.
  A)
   decisive moment
  done clear
  B)
   confused situation
  done clear
  C)
   difficult time
  done clear
  D)
   troublesome moment
  done clear
  View Answer play_arrow

• question_answer211) Directions: Choose the word which is most nearly the same in meaning to the word given in capital letters. RELUCTANT
  A)
   Ready          
  done clear
  B)
   Willing
  done clear
  C)
   Hesitating       
  done clear
  D)
   Inclined
  done clear
  View Answer play_arrow

• question_answer212) Directions: Choose the word which is most nearly the same in meaning to the word given in capital letters. ADMIT
  A)
   Adjourn        
  done clear
  B)
   Confess
  done clear
  C)
   Relate          
  done clear
  D)
   Commit
  done clear
  View Answer play_arrow

• question_answer213) Directions: Choose the word which is most nearly the same in meaning to the word given in capital letters. DOWDY
  A)
   Unstylish       
  done clear
  B)
   Elegant
  done clear
  C)
   Rakish          
  done clear
  D)
   Corpulent
  done clear
  View Answer play_arrow

• question_answer214) Directions: Choose the word which is most nearly the same in meaning to the word given in capital letters. ASSUAGE
  A)
   Rub            
  done clear
  B)
   Prohibit
  done clear
  C)
   Ease            
  done clear
  D)
   Enlarge
  done clear
  View Answer play_arrow

• question_answer215) Directions: Choose the word which is most nearly the same in meaning to the word given in capital letters. RECKLESS
  A)
   Daring         
  done clear
  B)
   Bold
  done clear
  C)
   Rash           
  done clear
  D)
   Courageous
  done clear
  View Answer play_arrow

• question_answer216) Directions: Choose the word which is opposite in meaning to the word given in capital letters. FICKLE
  A)
   Diseased        
  done clear
  B)
   Fast
  done clear
  C)
   Constant        
  done clear
  D)
   Quick
  done clear
  View Answer play_arrow

• question_answer217) Directions: Choose the word which is opposite in meaning to the word given in capital letters. PASSIONATE
  A)
   Calm           
  done clear
  B)
   Arrogant
  done clear
  C)
   Sure            
  done clear
  D)
   Fervent
  done clear
  View Answer play_arrow

• question_answer218) Directions: Choose the word which is opposite in meaning to the word given in capital letters. CHOICE
  A)
   Refusal        
  done clear
  B)
   Dilemma
  done clear
  C)
   Harm          
  done clear
  D)
   Approval
  done clear
  View Answer play_arrow

• question_answer219) Directions: Choose the word which is opposite in meaning to the word given in capital letters. DAINTY
  A)
   Splendid        
  done clear
  B)
   Aggressive
  done clear
  C)
   Vigorous        
  done clear
  D)
   Towering
  done clear
  View Answer play_arrow

• question_answer220) Directions: Choose the word which is opposite in meaning to the word given in capital letters. NIMBLE
  A)
   Giant          
  done clear
  B)
   Clumsy
  done clear
  C)
   Quick          
  done clear
  D)
   Frank
  done clear
  View Answer play_arrow

• question_answer221) Venue of\[{{1}^{st}}\]20-20 World Cup
  A)
   London         
  done clear
  B)
   Australia
  done clear
  C)
   South Africa     
  done clear
  D)
   India
  done clear
  View Answer play_arrow

• question_answer222) Gramy Awards are given for?
  A)
   Music           
  done clear
  B)
   Literature
  done clear
  C)
   Sports           
  done clear
  D)
   Philately
  done clear
  View Answer play_arrow

• question_answer223) International womens day is celeberated on
  A)
   \[{{8}^{th}}\] March      
  done clear
  B)
   \[{{10}^{th}}\] December
  done clear
  C)
   \[{{11}^{th}}\] July       
  done clear
  D)
   \[{{12}^{th}}\]Jan
  done clear
  View Answer play_arrow

• question_answer224) Headquater of Amnesty International is at
  A)
   London        
  done clear
  B)
   New York
  done clear
  C)
   Geneva        
  done clear
  D)
   Timbak-Tu
  done clear
  View Answer play_arrow

• question_answer225) Who is known as fuhrer?
  A)
   Mussolini       
  done clear
  B)
   Winston Churchil
  done clear
  C)
   Hitler        
  done clear
  D)
   Stalin
  done clear
  View Answer play_arrow

• question_answer226) The news agency REUTER belongs from
  A)
   New York      
  done clear
  B)
   Paris
  done clear
  C)
   London       
  done clear
  D)
   Ratterdam
  done clear
  View Answer play_arrow

• question_answer227) Who is considered to be the father of English poetry
  A)
   Shakespere     
  done clear
  B)
   John Keats
  done clear
  C)
   John Milton     
  done clear
  D)
   Geoffrey Chaucer
  done clear
  View Answer play_arrow

• question_answer228) Among them who is not a sportsperson.
  A)
   Maria Sharapova
  done clear
  B)
   Anju Bobby George
  done clear
  C)
   Anjum Chopra
  done clear
  D)
   Victoria Becham
  done clear
  View Answer play_arrow

• question_answer229) Which among the following, Indian Artists is the winner of the Oscar Awards?
  A)
   Dilip kumar    
  done clear
  B)
   Bhanu Athaiya
  done clear
  C)
   Raj kapoor     
  done clear
  D)
   Illaya Raja
  done clear
  View Answer play_arrow

• question_answer230) Kutchipudi is the dance form belongs to the state
  A)
   Andhra Pradesh
  done clear
  B)
   Tamil Nadu
  done clear
  C)
   Keria           
  done clear
  D)
   Bihar
  done clear
  View Answer play_arrow

• question_answer231) Directions: In each of the following questions there occurs is a specific relations. Fill the vacant space according to that relation. Prophecy : Future :: Regret
  A)
   Present        
  done clear
  B)
   Past
  done clear
  C)
   Sin            
  done clear
  D)
   Empathy
  done clear
  View Answer play_arrow

• question_answer232) Directions: In each of the following questions there occurs is a specific relations. Fill the vacant space according to that relation. Sikhs : Gurudwara : : Jews
  A)
   Mecca         
  done clear
  B)
   Fire Temple
  done clear
  C)
   Synagogue     
  done clear
  D)
   ZendAvesta
  done clear
  View Answer play_arrow

• question_answer233) Directions: In each of the following questions there occurs is a specific relations. Fill the vacant space according to that relation. Teeth : Pyorrhea : : Skin
  A)
   Eczema         
  done clear
  B)
   Aizheimers disease
  done clear
  C)
   Schizophrenia   
  done clear
  D)
   Colourblindness
  done clear
  View Answer play_arrow

• question_answer234) Directions: In each of the following questions there occurs is a specific relations. Fill the vacant space according to that relation. Pork : Pig : : Venison
  A)
   Deer            
  done clear
  B)
   Stallian
  done clear
  C)
   Bull             
  done clear
  D)
   Zebra
  done clear
  View Answer play_arrow

• question_answer235) Directions: In each of the following questions there occurs is a specific relations. Fill the vacant space according to that relation. Homicide : Human : : Fratricide
  A)
   Mother        
  done clear
  B)
   Father
  done clear
  C)
   Brother        
  done clear
  D)
   Enemy
  done clear
  View Answer play_arrow

• question_answer236) Directions: In each of the following questions there occurs is a specific relations. Fill the vacant space according to that relation. Horse : Jockey : : Car
  A)
   Mechanic       
  done clear
  B)
   Chauffer
  done clear
  C)
   Steering        
  done clear
  D)
   Brake
  done clear
  View Answer play_arrow

• question_answer237) Directions: In each of the following questions there occurs is a specific relations. Fill the vacant space according to that relation. Squint: Eye : : Squeeze
  A)
   Tongue        
  done clear
  B)
   Cloth
  done clear
  C)
   Throat         
  done clear
  D)
   Hand
  done clear
  View Answer play_arrow

• question_answer238) Directions: In each of the following questions there occurs is a specific relations. Fill the vacant space according to that relation. Hawana : Cuba : : Beirut
  A)
   Israel           
  done clear
  B)
   Lebanan
  done clear
  C)
   Zordan         
  done clear
  D)
   Syria
  done clear
  View Answer play_arrow

• question_answer239) Directions: In each of the following questions there occurs is a specific relations. Fill the vacant space according to that relation. Wool: Sheep : : Mohair
  A)
   Deer           
  done clear
  B)
   Goat
  done clear
  C)
   Bear           
  done clear
  D)
   Camel
  done clear
  View Answer play_arrow

• question_answer240) Directions: In each of the following questions there occurs is a specific relations. Fill the vacant space according to that relation. Cunning : Fox : : Timid
  A)
   Horse
  done clear
  B)
   Ant
  done clear
  C)
   Ass             
  done clear
  D)
   Panther
  done clear
  View Answer play_arrow