# Solved papers for BCECE Medical BCECE Medical Solved Papers-2004

### done BCECE Medical Solved Papers-2004

• question_answer1) An object accelerates from rest to a velocity 27.5 m/s in 10 s, then the distance covered after next 10 s is :

A) 550 m

B) 137.5 m

C) 412.5 m

D) 175 m

• question_answer2) The position vector of a particle is $\vec{r}=(a\cos \omega \,t)\,\hat{i}+(a\sin \omega \,t)\hat{j}$ The velocity vector of the particle is:

A) parallel to position vector

B) perpendicular to position vector

C) directed towards the origin

D) directed away from the origin

• question_answer3) If a person sitting in a train moving with a constant velocity along a straight line, throws a ball vertically upwards, then :

A) ball will fall onwards the train

D) none of the above

• question_answer4) A stone thrown at an angle $\theta$ to the horizontal reaches a maximum height H. Then the time of flight of stone will be :

A) $\sqrt{\frac{2H}{g}}$

B) $2\sqrt{\frac{2H}{g}}$

C) $2\sqrt{\frac{2H\sin \theta }{g}}$

D) $\sqrt{\frac{2H\sin \theta }{g}}$

• question_answer5) At the height 80 m, an aeroplane is moved with 150 m/s. A bomb is dropped from it, so as to hit a target. At what distance from the target should the bomb be dropped? $(g=10\,m/{{s}^{2}})$

A) 605.3 m

B) 600 m

C) 80 m

D) 230 m

• question_answer6) A spring has length $l$ and spring constant k. If spring is divided in two equal parts then spring constant of each part is :

A) k

B) $\frac{k}{2}$

C) 2 k

D) 4 k

• question_answer7) A body is moving along a rough horizontal surface with an initial velocity 6 m/s. If the body comes to rest after travelling a distance 9 m, then the coefficient of sliding friction will be:

A) 0.4

B) 0.2

C) 0.6

D) 0.8

• question_answer8) If two soap bubbles of different radii are connected by a tube :

A) air flows from the bigger bubble to the smaller bubble till the sizes become equal

B) air flows from bigger bubble to the smaller bubble till the sizes are interchanged

C) air flows from the smaller bubble to the bigger

D) there is no flow of air

• question_answer9) If the momentum of body is increased by 100%, then the percentage increase in the kinetic energy will be :

A) 330%

B) 225%

C) 200%

D) 300%

• question_answer10) Water falls from a height 500 m. The rise in temperature of water at bottom if whole of the energy remains in water, will be : (specific heat of water is c = 4.2 kJ/kg)

A) ${{0.23}^{o}}C$

B) ${{1.16}^{o}}C$

C) ${{0.96}^{o}}C$

D) ${{1.02}^{o}}C$

• question_answer11) A bullet of mass 0.1 kg is fired with a speed of 100 m/s. The mass of gun being 50 kg. Then, the velocity of recoil become :

A) 0.05 m/s

B) 0.5 m/s

C) 0.1 m/s

D) 0.2 m/s

• question_answer12) A body of mass M moves with velocity v and collides elastically with another body of mass m (M >> m) at rest, then the velocity of body of mass m is :

A) v

B) 2v

C) v/2

D) zero

• question_answer13) If torque is zero then :

A) angular momentum is conserved

B) linear momentum is conserved

C) energy is conserved

D) angular momentum is not conserved

• question_answer14) A solid sphere, a hollow sphere and a disc having same mass and radius roll down the same inclined plane from rest. Which one will reach the ground in least time?

A) Solid sphere

B) Hollow sphere

C) Disc

D) All will reach in same time

• question_answer15) In simple harmonic motion maximum velocity is at:

A) extreme position

B) half of extreme position

C) equilibrium position

D) between extreme and equilibrium position

• question_answer16) A ball is thrown from a point with a speed ${{v}_{0}}$at an angle of projection $\theta$. From the same point and at the same instant, a person starts running with a constant speed $\frac{{{v}_{0}}}{2}$ to catch the ball. Will the person be able to catch the ball? If yes, what should be the angle of projection?

A) Yes,${{60}^{o}}$

B) Yes, ${{30}^{o}}$

C) No

D) Yes, ${{45}^{o}}$

• question_answer17) The ratio of root mean square velocities of ${{O}_{3}}$ and ${{O}_{2}}$ is :

A) 1 : 1

B) 2 : 3

C) 3 : 2

D) $\sqrt{2}:\sqrt{3}$

• question_answer18) If mass of He is 4 times that of hydrogen, then mean velocity of He is :

A) 2 times of H-mean value

B) $\frac{1}{2}$times of H-mean value

C) 4 times of H-mean value

D) same as H-mean value

• question_answer19) A wire elongates by $l$ mm when a load w is hanged from it. If the wire goes over a pulley and two weights w each are hung at the two ends, the elongation of the wire will be (in mm):

A) $l$

B) $2\,l$

C) zero

D) $l/2$

• question_answer20) First law of thermodynamics is a consequence of the conservation of:

A) energy

B) charge

C) heat

D) all of these

• question_answer21) An ideal heat engine exhausting heat at ${{77}^{o}}C$is to have 30% efficiency. It must take hear at:

A) ${{127}^{o}}C$

B) ${{227}^{o}}C$

C) ${{327}^{o}}C$

D) ${{673}^{o}}C$

• question_answer22) A liquid cools from ${{50}^{o}}C$ to ${{45}^{o}}C$ in 5 min and from ${{45}^{o}}C$ to ${{41.5}^{o}}C$ in the next 5 min. The temperature of the surrounding is :

A) ${{27}^{o}}C$

B) ${{40.3}^{o}}C$

C) ${{23.3}^{o}}C$

D) ${{33.3}^{o}}C$

• question_answer23) At ${{127}^{o}}C$, radiated energy is $2.7\times {{10}^{-3}}$ J/s. At what temperature radiated energy is $4.32\times {{10}^{6}}$J/s?

A) 400 K

B) 4000 K

C) 80000 K

D) 40000 K

• question_answer24) If wave equation is $y=0.08\sin \frac{2\pi }{\lambda }\,(200\,t-x)$, then the velocity of the wave will be :

A) $400\sqrt{2}\,m/s$

B) $200\sqrt{2}\,m/s$

C) 400 m/s

D) 200 m/s

• question_answer25) A plano-convex lens of refractive index 1.5 and radius of curvature 30 cm is silvered at the curved surface. Now, this lens has been used to form the image of an object. At what distance from this lens, an object be placed in order to have a real image of the size of the object?

A) 20 cm

B) 30 cm

C) 60 cm

D) 80 cm

• question_answer26) A man having height 6 m, observes image of 2 m height erect, then mirror used is:

A) concave

B) convex

C) plane

D) none of these

• question_answer27) Which of the following statements is true?

A) If wavelength of light increases then frequency also increases

B) If energy increases then frequency also increases

C) Frequency of red light is greater than frequency of blue light

D) If energy increases then frequency decreases

• question_answer28) If focal lengths of the objective and the eye piece of a telescope be ${{f}_{o}}$ and ${{f}_{e}}$ respectively, then its magnification is:

A) $\frac{1}{2}({{f}_{o}}+{{f}_{e}})$

B) ${{f}_{o}}/{{f}_{e}}$

C) $({{f}_{o}}+{{f}_{e}})$

D) ${{f}_{o}}\times {{f}_{e}}$

• question_answer29) Near and far points of human eye are :

A) 25 cm and infinite

B) 50 cm and 100 cm

C) 25 cm and 50 cm

D) 0 cm and 25 cm

• question_answer30) Work done in carrying a charge around an equipoteritial surface will :

A) increase

B) decrease

C) zero

D) infinity

• question_answer31) An air parallel plate capacitor has capacity C. The capacity and distance between plates are doubled when immersed in a liquid then dielectric constant of the liquid is :

A) 1

B) 2

C) 3

D) 4

• question_answer32) If the potential of a capacitor having capacity 6 $\mu F$is increased from 10 V to 20V, then increase in its energy is :

A) $12\times {{10}^{-6}}J$

B) $9\times {{10}^{-4}}J$

C) $4.5\times {{10}^{-6}}J$

D) $2.25\times {{10}^{-6}}J$

• question_answer33) The resistance of a bulb filament is 100 0 at temperature of ${{100}^{o}}C$. If its temperature coefficient of resistance be $0.005{{/}^{o}}C$, its resistance will become 200$\Omega$ at a temperature of:

A) ${{300}^{o}}C$

B) ${{400}^{o}}C$

C) ${{500}^{o}}C$

D) ${{200}^{o}}C$

• question_answer34) A galvanometer of resistance 22.8 $\Omega$ measures 1 A. How much shunt should be used, so that it can be used to measure 20 A?

A) 1$\Omega$

B) 2$\Omega$

C) 1.2$\Omega$

D) 2.2$\Omega$

• question_answer35) If an ammeter is joined in parallel through a circuit, it can be damaged due to excess :

A) resistance

B) current

C) voltage

D) none of these

• question_answer36) The heat produced by a 100 W heater in 2 min will be equal to :

A) $12\times {{10}^{3}}J$

B) $10\times {{10}^{3}}J$

C) $6\times {{10}^{3}}J$

D) $3\times {{10}^{3}}J$

• question_answer37) Two wires have resistances R and 2R. When both are joining in series and in parallel, then ratio of heats generated in these situations on applying the same voltage, is :

A) 2 : 1

B) 1 : 2

C) 2 : 9

D) 9 : 2

• question_answer38) The current in a coil decreases from 1 A to 0.2 A in 10 s. The coefficient of self-inductance, if induced emf is 0.4 V, is :

A) 5 H

B) 3 H

C) 4 H

D) 2 H

• question_answer39) Cyclotron is a device which is used to :

A) measure the charge

B) measure the voltage

C) accelerate protons

D) accelerate electrons

• question_answer40) In L - R circuit, resistance is 8 $\Omega$ and inductive reactance is 6 $\Omega$, then impedance is :

A) 2$\Omega$

B) 14$\Omega$

C) 4$\Omega$

D) 10$\Omega$

• question_answer41) According to Maxwells hypothesis, changing electric field gives rise to :

A) magnetic field

C) charge

D) voltage

• question_answer42) Dimensions of Plancks constant is :

A) $[M{{L}^{2}}{{T}^{-1}}]$

B) $[ML{{T}^{-2}}]$

C) $[M{{L}^{-2}}T]$

D) $[M{{L}^{-1}}{{T}^{2}}]$

• question_answer43) In any fission process the ratio $\frac{mass\text{ }of\text{ }fission\text{ }products}{mass\text{ }of\text{ }parent\text{ }nucleus}$ is :

A) less than 1

B) greater than 1

C) equal to 1

D) depends on the mass of parent nucleus

• question_answer44) 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) ${{m}_{3}}={{m}_{1}}+{{m}_{2}}$

B) ${{m}_{3}}=({{m}_{1}}-{{m}_{2}})$

C) ${{m}_{3}}<({{m}_{1}}+{{m}_{2}})$

D) ${{m}_{3}}>({{m}_{1}}+{{m}_{2}})$

• question_answer45) In BJT, maximum current flows in which of the following?

A) Emitter region

B) Base region

C) Collector region

D) Equal in all the regions

• question_answer46) In frequency modulated wave :

A) frequency varies with time

B) amplitude varies with time

C) both frequency and amplitude vary with time

D) both frequency and amplitude are constant

• question_answer47) The total energy of an electron in the first excited state of hydrogen is about -3.4 eV. Its kinetic energy in this state is :

A) -3.4eV

B) - 6.8 eV

C) 6.8 eV

D) 3.4 eV

• question_answer48) If ${{\lambda }_{v}},{{\lambda }_{x}}$ and ${{\lambda }_{m}}$ represent the wavelengths of visible light, X-rays and microwaves respectively, then :

A) ${{\lambda }_{m}}>{{\lambda }_{x}}>{{\lambda }_{v}}$

B) ${{\lambda }_{v}}>{{\lambda }_{m}}>{{\lambda }_{x}}$

C) ${{\lambda }_{m}}>{{\lambda }_{v}}>{{\lambda }_{x}}$

D) ${{\lambda }_{v}}>{{\lambda }_{x}}>{{\lambda }_{m}}$

• question_answer49) The manifestation of band structure in solids is due to :

A) Heisenbergs uncertainty principle

B) Faults exclusion principle

C) Bohrs correspondence principle

D) Boltzmanns law

• question_answer50) An electric power station transmits 100 MW power through long and thin cable. If the transmission is at (i) 20000 V, (ii) 200 V, in which case would be less power loss?

A) In (i) only

B) In (ii) only

C) In each case, power loss is zero

D) Data is insufficient

• question_answer51) Arrange the following as increase in oxidation number:

 (i) $M{{n}^{2+}}$ (ii) $Mn{{O}_{2}}$ (iii) $KMn{{O}_{4}}$ (iv) ${{K}_{2}}Mn{{O}_{4}}$

A) (i) > (ii) > (iii) > (iv)

B) (i) < (ii) < (iv) < (iii)

C) (ii) < (iii) < (i) < (iv)

D) (iii) > (i) > (iv) > (ii)

• question_answer52) S-S bond is not present in :

A) ${{H}_{2}}{{S}_{2}}{{O}_{4}}$

B) ${{H}_{2}}{{S}_{2}}{{O}_{6}}$

C) ${{H}_{2}}{{S}_{2}}{{O}_{8}}$

D) none of these

• question_answer53) A radioactive substance after 48 days remains 25% of initial then find disintegration constant:

A) $2.89\times {{10}^{-2}}{{T}^{-1}}$

B) $3.89\times {{10}^{-3}}{{T}^{-1}}$

C) $4.89\times {{10}^{-2}}{{T}^{-1}}$

D) none of these

• question_answer54) Correct order of reactivity :

A) ${{I}_{2}}>B{{r}_{2}}>C{{l}_{2}}>{{F}_{2}}$

B) $B{{r}_{2}}>{{I}_{2}}>C{{l}_{2}}>{{F}_{2}}$

C) $C{{l}_{2}}>B{{r}_{2}}>{{I}_{2}}>{{F}_{2}}$

D) ${{F}_{2}}>C{{l}_{2}}>B{{r}_{2}}>{{I}_{2}}$

• question_answer55) Three elements A, B and C having reduction potential -1.5,-0.5 and 1.5 V respectively then arrange them in correct order according to reducing power:

A) A > B > C

B) B > A > C

C) C > B > A

D) B > C > A

• question_answer56) The standard reduction potential ${{E}^{o}}$ for the half reactions are as : $Zn\xrightarrow{{}}Z{{n}^{2+}}+2{{e}^{-}},\,\,{{E}^{o}}=0.76\,\,V$ $Cu\xrightarrow{{}}C{{u}^{2+}}+2{{e}^{-}},\,\,{{E}^{o}}=0.34\,\,V$ The emf for the cell reaction: $Zn+C{{u}^{2+}}\xrightarrow{{}}Z{{n}^{2+}}+Cu$

A) 0.42 V

B) - 0.42 V

C) - 1.1 V

D) 1.1 V

• question_answer57) Variable oxidation state and degenerated orbital shows :

A) s-block element

B) p-block element

C) d-block element

D) all of these

• question_answer58) Which of the following is more acidic in nature?

A) $HClO$

B) $HCl{{O}_{2}}$

C) $HCl{{O}_{3}}$

D) $HCl{{O}_{4}}$

• question_answer59) Unit of the constant of zero order reaction is :

A) $tim{{e}^{-1}}$

B) $mol\,\,{{L}^{-1}}\,{{s}^{-1}}$

C) $L\,\,mo{{l}^{-1}}\,{{s}^{-1}}$

D) $L\,\,mo{{l}^{-1}}\,{{s}^{-1}}$

• question_answer60) Mole fraction of a solute in benzene is 0.2 then find molality of solute :

A) 3.2

B) 2

C) 4

D) 3.6

• question_answer61) What amount of water is added in 40 mL of NaOH (0.1 N) which is neutralized by 50 mL of HCl (0.2N)?

A) 80ml.

B) 60 mL

C) 40 mL

D) 90 mL

• question_answer62) Slope between PV and P at constant temperature is :

A) zero

B) 1

C) $\frac{1}{2}$

D) $\frac{1}{\sqrt{2}}$

• question_answer63) When pressure is applied to the equilibrium system ice  water. Which of the following phenomenon will happen?

A) More ice will be formed

B) Water will evaporate

C) More water will be formed

D) Equilibrium will not be formed

• question_answer64) For $A\xrightarrow{{}}B,\,\,\Delta \,H=4\,k\,cal\,\,mo{{l}^{-1}}$ $\Delta S=10\,cal\,mo{{l}^{-1}}{{K}^{-1}}$ reaction is spontaneous when temperature can be:

A) 400 K

B) 300 K

C) 500K

D) none of these

• question_answer65) Degree of dissociation of $N{{H}_{4}}OH$ in water is $1.8\times {{10}^{-5}}$, then hydrolysis constant of $N{{H}_{4}}Cl$is:

A) $1.8\times {{10}^{-5}}$

B) $1.8\times {{10}^{-10}}$

C) $5.55\times {{10}^{-5}}$

D) $5.55\times {{10}^{-10}}$

• question_answer66) A current of strength 2.5A was passed through$CuS{{O}_{4}}$ solution for 6 min 26s. The amount of copper deposited is : (At. wt. of Cu = 63.5,1 F = 96500 C)

A) 0.3175 g

B) 3.175 g

C) 0.635 g

D) 6.35 g

• question_answer67) The charge on an electron was discovered by :

A) J.J. Thomson

B) Neil Bohr

D) Mullikan

• question_answer68) The normality of mixture obtained by mixing 100 mL of 0.2 M ${{H}_{2}}S{{O}_{4}}$ + 100 mL of 0.2 M NaOH is:

A) 0.2

B) 0.01

C) 0.1

D) 0.3

• question_answer69) The Bohrs orbit radius for the hydrogen atom $(n=1)$ is approximately $0.53\text{ }\overset{o}{\mathop{A}}\,$. The radius for the first excited state $(n=2)$ orbit is :

A) $0.27\overset{o}{\mathop{A}}\,$

B) $1.27\overset{o}{\mathop{A}}\,$

C) $2.12\overset{o}{\mathop{A}}\,$

D) $3.12\overset{o}{\mathop{A}}\,$

• question_answer70) A gas has a vapour density 11.2. The volume occupied by 1g of the gas at NTP is :

A) 1 L

B) 11.2 L

C) 22.4L

D) 4L

• question_answer71) If $n=3,\,\,l=0$ and $m=0$, then atomic, number is:

A) 12 or 13

B) 13 or 14

C) 10 or 11

D) 11 or 12

• question_answer72) Which is not a colligative property?

A) Osmotic pressure

B) Optical activity

C) Elevation in boiling point

D) Depression in freezing point

• question_answer73) The rate constant of a first order reaction is $3\times {{10}^{-6}}$ per second and initial concentration is 0.10 M. Then the initial rate of reaction is:

A) $3\times {{10}^{-6}}m{{s}^{-1}}$

B) $3\times {{10}^{-8}}m{{s}^{-1}}$

C) $3\times {{10}^{-7}}m{{s}^{-1}}$

D) $3\times {{10}^{-9}}m{{s}^{-1}}$

• question_answer74) $C{{H}_{2}}=C{{H}_{2}}(g)+{{H}_{2}}(g)\to C{{H}_{3}}-C{{H}_{3}}(g)$ The heat of reaction is [bond energy of C-C = 80 kcal, C = C = 145 kcal, C-H = 98 kcal, H-H = 103 kcal]

A) -14 kcal

B) -28 kcal

C) -42 kcal

D) -56 kcal

• question_answer75) Tyndall effect is shown by :

A) precipitate

B) sol

C) plasma

D) solution

• question_answer76) If $p{{K}_{a}}$ values of four acids are given below at ${{25}^{o}}C$ the strongest acid is :

A) 2.0

B) 2.5

C) 3.0

D) 4.0

• question_answer77) The solubility of gas in liquid depends upon :

A) the nature of gas

B) the temperature

C) the nature of solvent

D) all of the above ,

• question_answer78) Write the IUPAC name of: $C{{H}_{3}}-C{{H}_{2}}-\overset{\begin{smallmatrix} OH \\ | \end{smallmatrix}}{\mathop{\underset{\begin{smallmatrix} | \\ C{{H}_{3}} \end{smallmatrix}}{\mathop{C}}\,}}\,-C{{H}_{2}}-C{{H}_{3}}$

A) 3- methylpentane-3-ol

B) 3-hydroxyhexane

C) 3-hydroxy-3-methyl pentane

D) all of the above

• question_answer79) Natural rubber is polymer of:

A) ${{H}_{2}}C=\overset{\begin{smallmatrix} C{{H}_{3}} \\ | \end{smallmatrix}}{\mathop{C}}\,-CH=C{{H}_{2}}$

B) ${{H}_{2}}C=\overset{\begin{smallmatrix} Cl \\ | \end{smallmatrix}}{\mathop{C}}\,-CH=C{{H}_{2}}$

C) $\overset{\begin{smallmatrix} {{C}_{6}}{{H}_{5}} \\ | \end{smallmatrix}}{\mathop{C}}\,H=C{{H}_{2}}$

D) $-{{(C{{H}_{2}}-C{{H}_{2}})}_{n}}-$

• question_answer80) $C{{H}_{3}}C{{H}_{2}}C{{H}_{2}}C{{H}_{2}}C{{H}_{3}}$ reacts with hot and excess HI, then formed product is :

A) $C{{H}_{3}}C{{H}_{2}}-I$ and $C{{H}_{3}}C{{H}_{2}}OH$

B) $C{{H}_{2}}-C{{H}_{2}}-OH$

C) $C{{H}_{3}}-C{{H}_{2}}-I$

D) none of the above

• question_answer81) X compounds reacts with Na to give$C{{H}_{3}}C{{H}_{2}}C{{H}_{2}}C{{H}_{3}}$ , then compound X is :

A) $C{{H}_{3}}C{{H}_{2}}OH$

B) $C{{H}_{3}}C{{H}_{2}}-Cl$

C) $C{{H}_{3}}-C{{H}_{3}}$

D) $C{{H}_{3}}C{{H}_{2}}C{{H}_{2}}C{{H}_{2}}OH$

• question_answer82) In the following compound, least number of mono chlorination is possible :

A) $C{{H}_{3}}C{{H}_{2}}C{{H}_{2}}C{{H}_{2}}C{{H}_{3}}$

B) $C{{H}_{3}}-\underset{\begin{smallmatrix} | \\ C{{H}_{3}} \end{smallmatrix}}{\mathop{C}}\,H-C{{H}_{2}}-C{{H}_{3}}$

C) $C{{H}_{3}}-\overset{\begin{smallmatrix} C{{H}_{3}} \\ | \end{smallmatrix}}{\mathop{\underset{\begin{smallmatrix} | \\ C{{H}_{3}} \end{smallmatrix}}{\mathop{C}}\,}}\,-H$

D) $C{{H}_{3}}-\overset{\begin{smallmatrix} C{{H}_{3}} \\ | \end{smallmatrix}}{\mathop{\underset{\begin{smallmatrix} | \\ C{{H}_{3}} \end{smallmatrix}}{\mathop{C}}\,}}\,-C{{H}_{3}}$

• question_answer83) $C{{H}_{3}}C{{H}_{2}}OH$ convert into $C{{H}_{3}}CHO$ in the presence of:

A) $N{{a}_{2}}C{{r}_{2}}{{O}_{7}}$ and $NaOH$

B) $N{{a}_{2}}C{{r}_{2}}{{O}_{7}}$ and dil. ${{H}_{2}}S{{O}_{4}}$

C) $NaOH$

D) Fe in presence of $NaOH$

• question_answer84) Which of the following reactant give Tollens reagent and Fehlings solution test?

A) $C{{H}_{3}}CHO$

B) $C{{H}_{3}}COOH$

C) $C{{H}_{3}}-\underset{\begin{smallmatrix} || \\ O \end{smallmatrix}}{\mathop{C}}\,-C{{H}_{3}}$

D) $C{{H}_{3}}-C{{H}_{2}}-COOH$

• question_answer85) The alcohol manufactured from water gas is :

A) $C{{H}_{3}}OH$

B) ${{C}_{2}}{{H}_{5}}OH$

C) $C{{H}_{2}}C{{H}_{2}}COOH$

D) ${{(C{{H}_{3}})}_{2}}CHOH$

• question_answer86) The most stable alkene is :

A) ${{R}_{2}}C=C{{R}_{2}}$

B) $RCH=CHR$

C) $C{{H}_{2}}=C{{H}_{2}}$

D) $RCH=C{{R}_{2}}$

• question_answer87) The most favourable condition for the manufacture of $N{{H}_{3}}$ is :

A) high temperature and high pressure

B) low temperature and low pressure

C) high temperature-and low pressure

D) low temperature and high pressure

• question_answer88) The conversion of benzaldehyde into benzyl alcohol takes place by :

A) Fittig reaction

B) Wurtz Fittig reaction

C) Wurtz reaction

D) Cannizaros reaction

A) antibiotic

B) antipyretic

C) antimalarial

D) analgesic

• question_answer90) Benzaldehyde gives a positive test with :

A) Tollens reagent

B) Fehling solution

C) Benedicts solution

D) all of the above

• question_answer91) Which of the following is not soluble in$NaOH$?

A) $Fe{{(OH)}_{3}}$

B) $Zn{{(OH)}_{2}}$

C) $Al{{(OH)}_{3}}$

D) $Sn{{(OH)}_{2}}$

• question_answer92) Which of the following has least oxidation state of Fe?

A) ${{K}_{3}}[Fe{{(OH)}_{6}}]$

B) ${{K}_{2}}[Fe{{O}_{4}}]$

C) $FeS{{O}_{4}}{{(N{{H}_{4}})}_{2}}S{{O}_{4}}\,.\,6{{H}_{2}}O$

D) ${{[Fe{{(CN)}_{6}}]}^{3-}}$

• question_answer93) Green vitriol is formed by :

A) $Fe{{S}_{2}}+{{H}_{2}}O+{{O}_{2}}$

B) $Fe{{S}_{2}}+{{H}_{2}}O+C{{O}_{2}}$

C) $Fe{{S}_{2}}+CO+C{{O}_{2}}$

D) $Fe{{S}_{2}}+CO$

• question_answer94) $NaOH+{{P}_{4}}+{{H}_{2}}O\xrightarrow{{}}?$

A) $P{{H}_{3}}+Na{{H}_{2}}P{{O}_{2}}$

B) $P{{H}_{3}}+N{{a}_{2}}P{{O}_{4}}$

C) $P{{H}_{3}}+N{{a}_{2}}HP{{O}_{2}}$

D) ${{H}_{3}}P{{O}_{4}}+NaO$

• question_answer95) Slag is represented by:

A) $CaSi{{O}_{3}}$

B) $Si{{O}_{3}}$

C) $Ca{{(OH)}_{2}}$

D) $CaO$

• question_answer96) Which of the following is not a nucleophile?

A) $B{{F}_{3}}$

B) $N{{H}_{3}}$

C) $C{{N}^{-}}$

D) $O{{H}^{-}}$

• question_answer97) Fuming sulphuric acid is :

A) ${{H}_{2}}S{{O}_{4}}+S{{O}_{3}}$

B) ${{H}_{2}}S{{O}_{4}}+S{{O}_{2}}$

C) ${{H}_{2}}S{{O}_{4}}$

D) ${{H}_{2}}S{{O}_{4}}+S{{O}_{4}}$

• question_answer98) On strong heating $MgC{{l}_{2}}\,.\,\,6{{H}_{2}}O$, the product obtained is :

A) $MgC{{l}_{2}}$

B) $MgO$

C) $MgC{{l}_{2}}\,.\,2{{H}_{2}}O$

D) $MgC{{l}_{2}}\,.\,4{{H}_{2}}O$

• question_answer99) The highest first ionisation potential is of :

A) carbon

B) boron

C) oxygen

D) nitrogen

• question_answer100) In sulphur detection of an organic compound, sodium nitroprusside solution is added to sodium extract. Formation of violet colour is due to:

A) $N{{a}_{3}}Fe{{(CN)}_{6}}$

B) $N{{a}_{3}}[Fe{{(CN)}_{5}}NOS]$

C) $Fe{{(CNS)}_{3}}$

D) none of these

• question_answer101) Mycology is related with :

A) algae

B) fungi

C) bacteria

D) yeast

• question_answer102) Phylum of Taenia solium is :

A) Aschelminthes

B) Annelida

C) Platyhelminthes

D) Mollusca

• question_answer103) Which base is present in RNA but not in DNA?

A) Uracil

B) Thymine

C) Guanine

D) Cytosine

• question_answer104) Cell wall of a cell is removed, the remaining is called

A) etioplast

B) aleuroplast

C) amyloplast

D) protoplast

A) osmosis

B) active transport

C) diffusion

D) passive transport

• question_answer106) Synapsis occurs in ...... phase of meiosis :

A) zygotene

B) diplotene

C) pachytehe

D) leptotene

• question_answer107) Which cell organelle is absent in human sperm?

A) ER

B) Mitochondria

C) Nucleus

D) Centrioles

• question_answer108) Number of carbons in ring of deoxyribose sugar is:

A) four

B) five

C) six

D) three

• question_answer109) Which of the following act as secondary messenger in metabolism?

A) ATP

B) C-AMP

• question_answer110) Which of the following, does not help in clotting of blood?

A) Heparin

B) Prothrombin

C) $C{{a}^{2+}}$

D) Fibrinogen

• question_answer111) Pollination by wind is called :

A) anemophily

B) hydrophily

C) zoophily

D) entomophily

• question_answer112) Laticiferous gland found in which plant part?

A) Cortex

B) Epidermis

C) Endodermis

D) Vascular bundle

• question_answer113) The joint between axon of a neuron and the dendrite of the next is called :

A) synapse

B) bridge

C) junction

D) joint

• question_answer114) Fruiting body of mushrooms is present in :

A) fungi

B) algae

C) like monocotyledon seeds

D) like dicotyledon seeds

• question_answer115) Black stem rust of wheat is caused by :

A) fungi

B) Protozoa

C) algae

D) bacteria

• question_answer116) ${{O}_{2}}$ released in the process of photosynthesis, comes from:

A) $C{{O}_{2}}$

B) water

C) sugar

D) pyruvic acid

• question_answer117) Excretory organ of spider is :

A) coxal gland

B) flame cells

C) Malpighian tubule

D) nephridia

• question_answer118) In human teeth, which help in cutting:

A) canine

B) incisor

C) molar

D) premolar

• question_answer119) Hyposecretion of growth hormone causes:

A) dwarfism

B) cretinism

C) myxoedema

D) acromegaly

• question_answer120) Hormone prolactin is secreted by :

A) posterior pituitary

B) thyroid

C) anterior pituitary

D) hypothalamus

• question_answer121) Human urine as compared to human blood is:

A) hypotonic

B) hypertonic

C) isotonic

D) all of these

• question_answer122) $HCl$ is secreted by which of the following cell of stomach?

A) Chief cells

B) Parietal cells (oxyntic cells)

C) Peptic cells

D) Goblet cells

• question_answer123) Blood haemoglobin has high affinity for:

A) $C{{O}_{2}}$

B) CO

C) ${{O}_{2}}$

D) H

• question_answer124) Steroid hormone is derived from :

A) corticoid

B) cholesterol

D) protein

• question_answer125) Insulin deficiency causes :

A) diabetes insipidus

B) diabetes mellitus

C) goitre

D) all of the above

• question_answer126) Activity of brain is recorded by :

A) ECG

B) EEG n

C) MET

D) CT

• question_answer127) Increase glucose level in human is called :

A) hypoglycemia

B) hyperglycemia

C) hyposuria

D) hypersuria

• question_answer128) Development of animal embryo from egg without fertilization is called :

A) parthenogenesis

B) parthenocarpy

C) apospory

D) apomixes

• question_answer129) Which part of the brain is affected first in a drunk person?

A) Cerebrum

B) Olfactory lobe

C) Cerebellum

D) Medulla oblongata

• question_answer130) Testosterone is secreted by :

A) Leydig cells

B) Sertoli cells

C) Seminiferous tubule

D) None of the above

• question_answer131) Reproduction in most of the bacteria is by a process known as :

A) binary fission

B) budding

C) sexual

D) sporulation

• question_answer132) Lion is kept under in Eltolian pyramid as :

A) producer

B) primary consumer

C) secondary consumer

D) tertiary consumer

• question_answer133) Plants developing in dry condition are :

A) xerophytes

B) mesophytes

C) lithophytes

D) hydrophytes

• question_answer134) Bacteria and fungi developing on dead decaying organisms are :

A) parasites

B) commensals

C) saprophytes

D) symbionts

• question_answer135) Klinefelters syndrome is denoted by chromosome :

A) 44 + XXY

B) 44 + XO

C) 44 + XXX

D) 44 + YY

• question_answer136) Oxygenic compounds of biological process, which activates chemical reactions are :

A) vitamins

B) hormones

C) enzymes

D) fats

• question_answer137) 72 beat per minute heart beat rate of man is controlled by :

A) SA-node

B) Ventricles

C) Purkinje fibres

D) AV-node

• question_answer138) When plant cell is kept in saline drip, cell:

A) decrease in size

B) bursts out

C) increase in size

D) unchanged

• question_answer139) Animals active at night are :

A) diurnal

B) nocturnal

C) parasites

D) nocto- diurnal

• question_answer140) Collagen fibre are secreted by :

A) mast cells

B) macrophage

C) histiocytes

D) fibroblasts

• question_answer141) Main function of glomerulus is :

A) filtration of urine

B) reabsorption of ${{H}_{2}}O$

C) reabsorption of $N{{a}^{+}}$

D) concentration of urine

• question_answer142) Bond present between two carbohydrate molecules is :

A) glycosidic

B) hydrogen bond

C) phosphodiester

D) amide

A) intensity of light entering

B) photosynthesis

C) closing and opening of stomata

D) change in green colour

• question_answer144) Water molecules are connected by :

A) van der Wall force

B) covalent bond

C) H-bond

• question_answer145) The cell which destroy worn out white and red blood cells, bacteria and micro organisms passing from the liver is :

A) P-cells

B) T-cells

C) Kupffer cells

D) Oxytocin cells

• question_answer146) Pollen tube enters into ovule through micropyle is called :

A) porogamy

B) chalazogamy

C) mesogamy

D) none of these

• question_answer147) Which plant hormone causes fruit ripening?

A) JAA

B) Cytokinin

C) Ethylene

D) GA

• question_answer148) Which hormone is responsible for apical growth?

A) IAA

B) ABA

C) GA

D) All of these

• question_answer149) Which cell organelle is present in both prokaryotic and eukaryotic cell?

A) Ribosome

B) Mitochondria

C) ER

D) Nucleus

• question_answer150) Rhabditiform larva occurs in :

A) Neries

B) Ascaris

C) Taenia

D) Fasciola