Solved papers for NEET NEET SOLVED PAPER 2015 (Re)

NEET SOLVED PAPER 2015 (Re) Total Questions - 180

1) The cylindrical tube of a spray pump has radius R, one end of which has n fine holes, each of radius r. If the speed of the liquid in the tube is v, the speed of the ejection of the liquid through the holes is

A)

\[\frac{v{{R}^{2}}}{{{n}^{2}}{{r}^{2}}}\]

B)

\[\frac{v{{R}^{2}}}{n{{r}^{2}}}\]

C)

\[\frac{v{{R}^{2}}}{{{n}^{3}}{{r}^{2}}}\]

D)

\[\frac{{{v}^{2}}R}{nr}\]

View Answer
2) Point masses \[{{m}_{1}}\] and \[{{m}_{2}}\] are placed at the opposite ends of a rigid rod of length L and negligible mass. The rod is to be set rotating about an axis perpendicular to it. The position of point P on this rod through which the axis should pass, so that the work required to set the rod rotating with angular velocity \[{{\omega }_{0}}\] is minimum, is given by

A)

\[x=\frac{{{m}_{1}}L}{{{m}_{1}}+{{m}_{2}}}\]

B)

\[x=\frac{{{m}_{1}}}{{{m}_{2}}}L\]

C)

       \[x=\frac{{{m}_{2}}}{{{m}_{1}}}L\]

D)

       \[x=\frac{{{m}_{2}}L}{{{m}_{1}}+{{m}_{2}}}\]

View Answer
3) A proton and an alpha particle both enter a region of uniform magnetic field B, moving at right angles to the field B. If the radius of circular orbits for both the particles is equal and the kinetic energy acquired by proton is 1 MeV, the energy acquired by the alpha particle will be

A)

4 MeV

B)

0.5 MeV

C)

1.5 MeV

D)

1 MeV

View Answer
4) A plank with a box on it at one end is gradually raised about the other end. As the angle of inclination with the horizontal reaches \[{{30}^{\text{o}}},\] the box starts to slip and slides m down the plank in 4.0s. The coefficients of static and kinetic friction between the box and the plank will be, respectively

A)

0.6 and 0.6

B)

0.6 and 0.5

C)

       0.5 and 0.6

D)

       0.4 and 0.3

View Answer
5) An ideal gas is compressed to half its initial volume by means of several process. Which of the process results in the maximum work done on the gas?

A)

Adiabatic

B)

Isobaric

C)

       Isochoric

D)

       Isothermal

View Answer
6) A ball is thrown vertically downwards from a height of 20m with an initial velocity \[{{V}_{0}}\]. It collides with the ground, loses 50% of its energy in collision and rebounds to the same height. The initial velocity \[{{V}_{0}}\] is (Take, \[g=10m{{s}^{-2}}\])

A)

\[14m{{s}^{-1}}\]

B)

\[20m{{s}^{-1}}\]

C)

       \[28m{{s}^{-1}}\]

D)

       \[10m{{s}^{-1}}\]

View Answer
7) In the spectrum of hydrogen, the ratio of the longest wavelength in the Lyman series to the longest wavelength in the Balmer series is

A)

\[\frac{4}{9}\]

B)

\[\frac{9}{4}\]

C)

\[\frac{27}{5}\]

D)

\[\frac{5}{27}\]

View Answer
8) A source of sound S emitting waves of frequency 100 Hz and an observer O are located at some distance from each other. The source is moving with a speed of 19.4 \[m{{s}^{-1}}\]at an angle of \[{{60}^{\text{o}}}\] with the source observer line as shown in the figure. The observer is at rest. The apparent frequency observed by the observer (velocity of sound in air \[330\,m{{s}^{-1}}\]), is

A)

100 Hz

B)

103 Hz

C)

106 Hz

D)

97Hz

View Answer
9) If dimensions of critical velocity \[{{\text{v}}_{\text{c}}}\] of a liquid flowing through a tube are expressed as \[[{{\eta }^{x}}{{\rho }^{y}}{{r}^{z}}]\], where \[\eta ,\rho \] and r are the coefficient of viscosity of liquid, density of liquid and radius of the tube respectively, then the values of x, y and z are given by

A)

1, -1 -1

B)

-1, -1, 1

C)

-1, -1, -1

D)

1, 1, 1

View Answer
10) 4.0 g of a gas occupies 22.4 L at NTP. The specific heat capacity of the gas at constant volume is \[5.0J{{K}^{-1}}mo{{l}^{-1}}\]. If the speed of sound in this gas at NTP is 952 \[m{{s}^{-1}}\] then the heat capacity at constant pressure is (Take gas constant R = 8.3 \[J{{K}^{-1}}mo{{l}^{-1}}\])

A)

8.0 \[J{{K}^{-1}}mo{{l}^{-1}}\]

B)

7.5 \[J{{K}^{-1}}mo{{l}^{-1}}\]

C)

       7.0 \[J{{K}^{-1}}mo{{l}^{-1}}\]

D)

     8.5 \[J{{K}^{-1}}mo{{l}^{-1}}\]

View Answer
11) If vectors \[A=\cos \omega t+\text{\hat{i}+sin}\omega \text{t}\,\text{\hat{j}}\] and \[\mathbf{B}=\cos \frac{\omega t}{2}\hat{i}+\sin \frac{\omega t}{2}\hat{j}\] are functions of time, then the value of t at which they are orthogonal to each other

A)

        \[t=\frac{\pi }{4\omega }\]

B)

\[t=\frac{\pi }{2\omega }\]

C)

\[t=\frac{\pi }{\omega }\]

D)

\[t=0\]

View Answer
12) In the given figure, a diode D is connected to an external resistance \[R=100\Omega \] and an, e.m.f of 3.5V. If the barrier potential developed across the diode is 0.5V, the current in the circuit will be

A)

30mA

B)

40mA

C)

20mA

D)

35mA

View Answer
13) If potential (in volts) in a region is expressed as \[V(x,y,z)=6xy-y+2yz,\], the electric field (in N/C) at point \[(1,\,\,1,\,\,0)\] is

A)

\[-(3\hat{i}+5\hat{j}+3\hat{k})\]

B)

\[-(6\hat{i}+5\hat{j}+2\hat{k})\]

C)

\[-(2\hat{i}+3\hat{j}+\hat{k})\]

D)

\[-(6\hat{i}+9\hat{j}+\hat{k})\]

View Answer
14) A remote sensing satellite of earth revolves in a circular orbit at a height of \[0.25\times {{10}^{6}}\] m above the surface of earth. If earth's radius is \[6.38\times {{10}^{6}}\] and \[g=9.8m{{s}^{-2}}\], then the orbital speed of the satellite is

A)

7.76 \[km{{s}^{-1}}\]

B)

8.5\[km{{s}^{-1}}\]

C)

9.13 \[km{{s}^{-1}}\]

D)

6.67 \[km{{s}^{-1}}\]

View Answer
15) Two metal wires of identical dimensions are connected in series. If \[{{\sigma }_{1}}\] and\[{{\sigma }_{2}}\] are the conductivities of the metal wires respectively, the effective conductivity of the combination is

A)

\[\frac{2{{\sigma }_{1}}{{\sigma }_{2}}}{{{\sigma }_{1}}+{{\sigma }_{2}}}\]

B)

\[\frac{{{\sigma }_{1}}+{{\sigma }_{2}}}{2{{\sigma }_{1}}{{\sigma }_{2}}}\]

C)

\[\frac{{{\sigma }_{1}}+{{\sigma }_{2}}}{{{\sigma }_{1}}{{\sigma }_{2}}}\]

D)

\[\frac{{{\sigma }_{1}}{{\sigma }_{2}}}{{{\sigma }_{1}}+{{\sigma }_{2}}}\]

View Answer
16) A satellite S is moving in an elliptical orbit around the earth. The mass of the satellite is very small as compared to the mass of the earth. Then,

A)

the angular momentum of S about the centre of the earth changes in direction, but its magnitude remains constant

B)

the total mechanical energy of S varies periodically with time

C)

the linear momentum of S remains constant in magnitude

D)

the acceleration of S is always directed towards the centre of the earth

View Answer
17) Two particles A and B, move with constant velocities \[{{v}_{1}}\] and \[{{v}_{2}}\]. At the initial moment, their position vectors are \[{{r}_{1}}\] and \[{{r}_{2}}\] respectively. The condition for particles A and B for their collision is

A)

\[\frac{{{r}_{1}}-{{r}_{2}}}{\left| {{r}_{1}}-{{r}_{2}} \right|}=\frac{{{v}_{2}}-{{v}_{1}}}{\left| {{v}_{3}}-{{v}_{1}} \right|}\]

B)

\[{{r}_{1}}\cdot {{v}_{1}}={{r}_{2}}\cdot {{v}_{2}}\]

C)

\[{{r}_{1}}\times {{v}_{1}}={{r}_{2}}\times {{v}_{2}}\]

D)

       \[{{r}_{1}}-{{r}_{2}}={{v}_{1}}-{{v}_{2}}\]

View Answer
18) Two stones of masses m and 2m are whirled in horizontal circles, the heavier one in a radius \[\frac{r}{2}\] and the lighter one in radius r. The tangential speed of lighter stone is n times that of the value of heavier stone when they experience same centripetal forces. The value n is

A)

2

B)

3

C)

4

D)

1

View Answer
19) A parallel plate air capacitor has capacity C, distance of separation between plates is d and potential difference V is applied between the plates. Force of attraction between the plates of the parallel plate air capacitor is

A)

                                                                        \[\frac{{{C}^{2}}{{V}^{2}}}{2d}\]

B)

\[\frac{C{{V}^{2}}}{2d}\]

C)

\[\frac{C{{V}^{2}}}{d}\]

D)

\[\frac{{{C}^{2}}{{V}^{2}}}{2{{d}^{2}}}\]

View Answer
20) The position vector of a particle R as a function of time is given by \[\mathbf{R}=4\sin (2\pi t)\hat{i}+4cos(2\pi t)\hat{j}\] where R is in metre, t is in seconds and \[\text{\hat{i}}\] and \[\text{\hat{j}}\] denote unit vectors along x and y-directions, respectively. Which one of the following statements is wrong for the motion of particle?

A)

Acceleration is along - R

B)

Magnitude of acceleration vector is\[\frac{{{v}^{2}}}{R}\], where v is the velocity of particle

C)

Magnitude of the velocity of particle is \[8m/s\]

D)

Path of the particle is a circle of radius

View Answer
21) A series R-C circuit is connected to an alternating voltage source. Consider two situations:

1. When capacitor is air filled.

2. When capacitor is mica filled.

Current through resistor is i and voltage across capacitor is V then

A)

\[{{V}_{a}}<{{V}_{b}}\]

B)

\[{{V}_{a}}>{{V}_{b}}\]

C)

\[{{i}_{a}}>{{i}_{b}}\]

D)

\[{{V}_{a}}={{V}_{b}}\]

View Answer
22) A string is stretched between fixed points separated by 75.0 cm. It is observed to have resonant frequencies of 420 Hz and 315 Hz. There are no other resonant frequencies between these two. The lowest resonant frequency for this strings is

A)

155 Hz

B)

205 Hz

C)

10.5 Hz

D)

105 Hz

View Answer
23) The coefficient of performance of a refrigerator is 5. If the temperature inside freezer is \[-20{}^\circ C\], the temperature of the surroundings to which it rejects heat is

A)

\[{{31}^{\text{o}}}C\]

B)

\[{{41}^{\text{o}}}C\]

C)

\[{{11}^{\text{o}}}C\]

D)

       \[{{21}^{\text{o}}}C\]

View Answer
24) A photoelectric surface is illuminated successively by monochromatic light of wavelength \[\lambda \] and \[\frac{\lambda }{2}\]. If the maximum kinetic energy of the emitted photoelectrons in the second case is 3 times that in the first case, the work function of the surface of the material is (A = Planck's constant, c = speed of light)

A)

\[\frac{hc}{2\lambda }\]

B)

\[\frac{hc}{\lambda }\]

C)

\[\frac{2hc}{\lambda }\]

D)

\[\frac{hc}{3\lambda }\]

View Answer
25) In an astronomical telescope in normal adjustment a straight black line of length L is drawn on inside part of objective lens. The eye-piece forms a real image of this line. The length of this image is I. The magnification of the telescope is

A)

\[\frac{L}{l}+1\]

B)

\[\frac{L}{l}-1\]

C)

\[\frac{L+1}{L-1}\]

D)

\[\frac{L}{l}\]

View Answer
26) Two slits in Young?s experiment have widths in the ratio 1 : 25. The ratio of intensity at the maxima and minima in the interference pattern \[\frac{{{I}_{\max }}}{{{I}_{\min }}}\] is

A)

\[\frac{9}{4}\]

B)

\[\frac{121}{49}\]

C)

\[\frac{49}{121}\]

D)

\[\frac{4}{9}\]

View Answer
27) Two vessels separately contain two ideal gases A and B at the same temperature, the pressure of A being twice that of B. Under such conditions, the density of A is found to be 1.5 times the density of B. The ratio of molecular weight of A and B is

A)

\[\frac{2}{3}\]

B)

\[\frac{3}{4}\]

C)

\[2\]

D)

\[\frac{1}{2}\]

View Answer
28) A circuit contains an ammeter, a battery of 30 V and a resistance 40.8\[\Omega \]. all connected in series. If the ammeter has a coil of resistance 480\[\Omega \]. and a shunt of 20 \[\Omega \], then reading in the ammeter will be

A)

0.5A

B)

0.25A

C)

2A

D)

1 A

View Answer
29) The value of coefficient of volume expansion of glycerin is \[5\times {{10}^{-4}}{{K}^{-1}}\]. The fractional change in the density of glycerin for a rise of \[{{40}^{\text{o}}}C\] in its temperature is

A)

0.015

B)

0.020

C)

0.025

D)

0.010

View Answer
30) The heart of a man pumps 5 L of blood through the arteries per minute at a pressure of 150 mm of mercury. If the density of mercury be \[13.6\times {{10}^{3}}kg/{{m}^{3}}\]   and \[g=10m/{{s}^{2}}\], then the power of heart in watt is

A)

1.70

B)

2.35

C)

3.0

D)

1.50

View Answer
31) A beam of light consisting of red, green and blue colors is incident on a right angled prism. The refractive index of the material of the prism for the above red, green and blue wavelengths are 1.39, 1.44 and 1.47, respectively. The prism will,

A)

separate the blue colour part from the red and green colours

B)

separate all the three colours from one another

C)

not separate the three colours at all

D)

separate the red colour part from the green and blue colours

View Answer
32) A rectangular coil of length 0.12 m and width 0.1 m having 50 turns of wire is suspended vertically in a uniform magnetic field of strength 0.2 \[Wb/{{m}^{2}}\] . The coil carries a current of 2 A. If the plane of the coil is inclined at an angle of \[\,{{30}^{\text{o}}}\] with the direction of the field, the torque required to keep the coil in stable equilibrium will be

A)

0.15Nm

B)

0.20 Nm

C)

                                                       0.24 Nm

D)

                       0.12 Nm

View Answer
33) An electron moves on a straight line path XY as shown. The abed is a coil adjacent in the path of electron. What will be the direction of current, if any induced in the coil?

A)

\[abcd\]

B)

\[adcb\]

C)

The current will reverse its direction as the electron goes past the coil

D)

No current induced

View Answer
34) A nucleus of uranium decays at rest into nuclei of thorium and helium. Then,

A)

the helium nucleus has more kinetic energy than the thorium nucleus

B)

the helium nucleus has less momentum than the thorium nucleus

C)

the helium nucleus has more momentum than the thorium nucleus

D)

the helium nucleus has less kinetic energy than the thorium nucleus

View Answer
35) A force \[\mathbf{F=}\mathbf{\hat{i}+3\hat{j}+6\hat{k}}\]is acting at a point\[\mathbf{r=2\hat{i}-6\hat{j}-12\hat{k}}\]. The value of a for which angular momentum about origin is conserved is

A)

-1

B)

2

C)

zero

D)

1

View Answer
36) Water rises to a height W in capillary tube. If the length of capillary tube above the surface of water is made less than 'A', then

A)

water rises upto the tip of capillary tube and then starts overflowing like a fountain

B)

water rises upto the top of capillary tube and stays there without overflowing

C)

water rises upto a point a little below the top and stays there

D)

water does not rise at all

View Answer
37) A particle is executing a simple harmonic motion. Its maximum acceleration is \[\alpha \] and maximum velocity is \[\beta \]. Then, its time period of vibration will be

A)

\[\frac{{{\beta }^{2}}}{{{\alpha }^{2}}}\]

B)

\[\frac{\alpha }{\beta }\]

C)

\[\frac{{{\beta }^{2}}}{\alpha }\]

D)

\[\frac{2\pi \beta }{\alpha }\]

View Answer
38) The energy of the EM waves is of the order of 15 keV. To which part of the spectrum does it belong?

A)

        X-rays

B)

Infrared rays

C)

Ultraviolet rays

D)

       \[\gamma \]-rays

View Answer
39) Light of wavelength 500 nm is incident on a metal with work function 2.28 eV. The de-Broglie wavelength of the emitted electron is

A)

\[<2.8\times {{10}^{-10}}m\]

B)

\[<2.8\times {{10}^{-9}}m\]

C)

       \[\le 2.8\times {{10}^{-9}}m\]

D)

       \[\le 2.8\times {{10}^{-12}}m\]

View Answer
40) At the first minimum adjacent to the central maximum of a single slit diffraction pattern, the phase difference between the Huygen?s wavelet from the edge of the slit and the wavelet from the midpoint of the slit is

A)

                                                        \[\frac{\pi }{4}\]radian

B)

\[\frac{\pi }{2}\] radian

C)

       \[\pi \] radian

D)

       \[\frac{\pi }{8}\] radian

View Answer
41) On a frictionless surface, a block of mass M moving at speed v collides elastically with another block of same mass M which is initially at rest. After collision the first block moves at an angle \[\theta \] to its initial direction and has a speed \[\frac{v}{3}\]. The second block's speed after the collision is

A)

\[\frac{2\sqrt{2}}{3}v\]

B)

\[\frac{3}{4}v\]

C)

\[\frac{3}{\sqrt{2}}v\]

D)

\[\frac{\sqrt{3}}{2}v\]

View Answer
42) A potentiometer wire of length L and a resistance r are connected in series with a battery of e.m.f. \[{{E}_{0}}\] and a resistance \[{{r}_{1}}\]. An unknown e.m.f. is balanced at a length \[I\]of the potentiometer wire. The e.m.f. E will be given by

A)

\[\frac{L{{E}_{0}}f}{l\,{{r}_{1}}}\]

B)

\[\frac{{{E}_{0}}r}{(r+{{r}_{1}})}.\frac{l}{L}\]

C)

\[\frac{{{E}_{0}}l}{L}\]

D)

\[\frac{L{{E}_{0}}r}{(r+{{r}_{1}})l}\]

View Answer
43) The Young's modulus of steel is twice that of brass. Two wires of same length and of same area of cross-section, one of steel and another of brass are suspended from the same roof. It we want the lower ends of the wires to be at the same level, then the weight added to the steel and brass wires must be in the ratio of

A)

        1 : 2

B)

2 : 1

C)

4 : 1

D)

1 : 1

View Answer
44) The input signal given to a CE amplifier having a voltage gain of 150 is \[{{V}_{i}}=2\cos \left( 15t+\frac{\pi }{3} \right)\] The corresponding output signal will be

A)

\[300\cos \left( 15t+\frac{\pi }{3} \right)\]

B)

\[75\cos \left( 15t+\frac{2\pi }{3} \right)\]

C)

\[2\cos \left( 15t+\frac{5\pi }{3} \right)\]

D)

\[300\cos \left( 15t+\frac{4\pi }{3} \right)\]

View Answer
45) An automobile moves on a road with a speed of \[54\,km\,{{h}^{-1}}\]. The radius of its wheels is 0.45 m and the moment of inertia of the wheel about its axis of rotation is \[3\,kg\,{{m}^{2}}\]. If the vehicle is brought to rest in 15 s, the magnitude of average torque transmitted by its brakes to the wheel is

A)

\[6.66\,kg\,{{m}^{2}}{{s}^{-2}}\]

B)

\[8.58\,kg\,{{m}^{2}}{{s}^{-2}}\]

C)

\[10.86\,kg\,{{m}^{2}}{{s}^{-2}}\]

D)

     \[2.86\,kg\,{{m}^{2}}{{s}^{-2}}\]

View Answer
46) In which of the following pairs, both the species are not isostructural?

A)

\[SiC{{l}_{4}},PCl_{4}^{+}\]

B)

Diamond, carbide

C)

       \[N{{H}_{3}},P{{H}_{3}}\]

D)

       \[Xe{{F}_{4}},Xe{{O}_{4}}\]

View Answer
47) Which one of the following esters gets hydrolyzed most easily under alkaline conditions?

A)



B)

C)



D)



View Answer
48) Reaction of phenol with chloroform in the presence of dilute sodium hydroxide finally introduces, which one of the following functional group?

A)

\[-C{{H}_{2}}Cl\]

B)

\[-COOH\]

C)

\[-CHC{{l}_{2}}\]

D)

\[-CHO\]

View Answer

49) Which of the following reaction(s) can be used for the preparation of alkyl halides?

I. \[C{{H}_{3}}C{{H}_{2}}OH+HCl\xrightarrow{anh.ZnC{{l}_{2}}}\]

II. \[C{{H}_{3}}C{{H}_{2}}OH+HCl\xrightarrow{\,}\]

III. \[{{(C{{H}_{3}})}_{3}}COH+HCl\xrightarrow{\,}\]

IV. \[{{(C{{H}_{3}})}_{2}}CHOH+HCl\xrightarrow{\text{anh}\text{.}\,\text{ZnC}{{\text{l}}_{\text{2}}}}\]

I, III and IV

I and II

Only IV

III and IV

View Answer

50) In an \[{{S}_{N}}1\] reaction on chiral centres there is

A)

100% racemization

B)

inversion more than retention leading to partial racemization

C)

100% retention

D)

100% inversion

View Answer
51) Which of the following is not the product of dehydration of

A)



B)

C)



D)



View Answer
52) On heating which of the following releases \[C{{O}_{2}}\] most easily?

A)

\[{{K}_{2}}C{{O}_{3}}\]

B)

\[N{{a}_{2}}C{{O}_{3}}\]

C)

\[MgC{{O}_{3}}\]

D)

\[CaC{{O}_{3}}\]

View Answer
53) In the reaction with \[HCl,\] an alkene reacts in accordance with the Markownikoffs rule, to give a product 1-chloro-1- methylcyclohexane. The possible alkane is

A)



B)

C)

(a) and (b)

D)



View Answer
54) Number of possible isomers for the complex \[[Co{{(en)}_{2}}C{{l}_{2}}]Cl\] will be (en = ethylenediamine)

A)

                        2

B)

1

C)

                       3

D)

4

View Answer
55) A gas such as carbon monoxide would be most likely to obey the ideal gas law at

A)

high temperatures and low pressures

B)

low temperatures and high pressures

C)

high temperatures and high pressures

D)

low temperatures and low pressures

View Answer
56) If Avogadro number \[{{N}_{A}}\], is changed from \[6.022\times {{10}^{23}}mo{{l}^{-1}}\] to \[6.022\times {{10}^{20}}mo{{l}^{-1}}\] this would change

A)

the definition of mass in units of grams

B)

the mass of one mole of carbon

C)

the ratio of chemical species to each other in a balanced equation

D)

the ratio of elements to each other in a compound

View Answer
57) Gadolinium belongs to \[4f\] series. Ifs atomic number is 64. Which of the following is the correct   electronic   configuration of gadolinium?

A)

\[[Xe]4{{f}^{8}}6{{d}^{2}}\]

B)

\[[Xe]4{{f}^{9}}\,5{{s}^{1}}\]

C)

       \[[Xe]4{{f}^{7}}\,5{{d}^{1}}\,6{{s}^{2}}\]

D)

       \[[Xe]\,4{{f}^{6}}5{{d}^{2}}6{{s}^{2}}\]

View Answer
58) What is the pH of the resulting solution when equal volumes of 0.1 M \[NaOH\]and \[M\,HCl\] are mixed?

A)

                        12.65

B)

2.0

C)

7.0

D)

1.04

View Answer
59) Decreasing order of stability of \[{{O}_{2}},O_{2}^{-},O_{2}^{+}\] and \[O_{2}^{2-}\]is

A)

\[O_{2}^{+}>{{O}_{2}}>O_{2}^{-}>O_{2}^{2-}\]

B)

\[O_{2}^{2-}>O_{2}^{-}>{{O}_{2}}>O_{2}^{+}\]

C)

       \[{{O}_{2}}>O_{2}^{+}>O_{2}^{2-}>O_{2}^{-}\]

D)

       \[O_{2}^{-}>O_{2}^{2-}>O_{2}^{+}>{{O}_{2}}\]

View Answer
60) The correct statement regarding defects in the crystalline solid is

A)

Schottky defects have no effect on the density of crystalline solids

B)

Frenkel defects decreases the density of crystalline solids

C)

Frenkel defect is a dislocation defect

D)

Frenkel defect is found in halides of alkaline metals

View Answer
61) Which of the following statements is not correct for a nucleophile?

A)

Nucleophile is a Lewis acid

B)

Ammonia is a nucleophile

C)

Nucleophiles attack tow electrons density sites

D)

Nucleophiles are not electron seeking

View Answer
62) The hybridization involved in complex \[{{[Ni{{(CN)}_{4}}]}^{2-}}\]is (Atomic number of Ni = 28)

A)

\[ds{{p}^{2}}\]

B)

\[s{{p}^{3}}\]

C)

\[{{d}^{2}}s{{p}^{2}}\]

D)

\[{{d}^{2}}s{{p}^{3}}\]

View Answer
63) The stability of +1 oxidation state among \[Al\] \[Ga,\] In and \[Tl\] increases in the sequence

A)

\[\text{Ga ln Al Tl}\]

B)

\[\text{Al Ga ln Tl}\]

C)

\[\text{Tl ln Ga Al}\]

D)

       \[\text{ln Tl Ga Al}\]

View Answer
64) The sum of coordination number and oxidation number of the metal M in the complex \[[M{{(en)}_{2}}({{C}_{2}}{{O}_{4}})]Cl\] (where, en is ethylenediamine) is

A)

9

B)

6

C)

7

D)

8

View Answer
65) Which of the statements given below is incorrect?

A)

\[C{{l}_{2}}{{O}_{7}}\] is an anhydride of perchloric acid

B)

\[{{O}_{3}}\]molecule is bent

C)

OFN is isoelectronic with \[N{{O}_{2}}\]

D)

\[O{{F}_{2}}\]is an oxide of fluorine

View Answer
66) In the extraction of copper from its sulphide ore, the metal finally obtained by the reduction of cuprous oxide with

A)

iron (ll) sulphide

B)

carbon monoxide

C)

copper (I) sulphide

D)

sulphur dioxide

View Answer
67) Which one of the following pairs of solution is not an acidic buffer?

A)

\[HCl{{O}_{4}}\]and \[NaCl{{O}_{4}}\]

B)

\[C{{H}_{3}}COOH\]and \[C{{H}_{3}}COONa\]

C)

\[{{H}_{2}}C{{O}_{3}}\]and \[N{{a}_{2}}C{{O}_{3}}\]

D)

\[{{H}_{3}}P{{O}_{4}}\]and \[N{{a}_{2}}P{{O}_{4}}\]

View Answer
68) Assuming complete ionization, same moles of which of the following compounds will require the least amount of acidified \[KMn{{O}_{4}}\] for complete oxidation?

A)

\[FeS{{O}_{4}}\]

B)

\[FeS{{O}_{3}}\]

C)

\[Fe{{C}_{2}}{{O}_{4}}\]

D)

\[Fe{{(N{{O}_{2}})}_{2}}\]

View Answer
69) The number of structural isomers possible from the molecular formula \[{{C}_{3}}{{H}_{9}}N\] is

A)

4

B)

5

C)

2

D)

3

View Answer
70) 20.0 g of a magnesium carbonate sample decomposes on heating to give carbon dioxide and 8.0 g magnesium oxide. What will be the percentage purity of magnesium carbonate in the sample? (Atomic weight of \[Mg=24\])

A)

75

B)

96

C)

60

D)

84

View Answer
71) Two possible stereo-structures of\[C{{H}_{3}}CHOH\cdot COOH\], which are optically active, are called

A)

                        diastereomers

B)

atropisomers

C)

       enantiomers

D)

       mesomers

View Answer
72) The heat of combustion of carbon to \[C{{O}_{2}}\] is \[-393.5\,kJ/mol\]. The heat released upon the formation of 35.2 g of \[C{{O}_{2}}\]from carbon and oxygen gas is

A)

\[-315\,kJ\]

B)

\[+315\,kJ\]

C)

\[-630\,kJ\]

D)

\[-3.15kJ\]

View Answer
73) The rate constant of the reaction \[A\to B\] is \[0.6\times {{10}^{-3}}\] mole per second. If the concentration of A is 5 M then concentration of B after 20 min is

A)

1.08 M

B)

3.60 M

C)

0.36 M

D)

0.72 M

View Answer
74) The formation of the oxide ion \[{{O}^{2-}}(g)\], from oxygen atom requires first an exothermic and then an endothermic step as shown below, \[O(g)+{{e}^{-}}\to {{O}^{-}}(g);\Delta f{{H}^{{}^\circ }}=-141KJmo{{l}^{-1}}\] \[{{O}^{-}}(g)+{{e}^{-}}\xrightarrow{\,}\,{{O}^{2-}}\,(g);\,{{\Delta }_{f}}{{H}^{\text{o}}}\] \[=+780\,kJm\,o{{l}^{-1}}\] Thus, process of formation of \[{{O}^{2-}}\] in gas phase is unfavourable even though \[{{O}^{2-}}\] is isoelectronic with neon. It is due to the fact that

A)

electron repulsion outweighs the stability gained by achieving noble gas configuration

B)

\[{{O}^{-}}\] ion has comparatively smaller size than oxygen atom

C)

Oxygen is more electronegative

D)

addition of electron in oxygen result in large size of the ion

View Answer
75) What is the mass of precipitate formed when 50 mL of 16.9% solution of \[AgN{{O}_{3}}\] is mixed with 50 mL of 5.8% \[NaCl\] solution?            \[(Ag=107.8.N=14,\,O=16,\,Na=23,\,01=35.5)\]

A)

28g

B)

3.5g

C)

7g

D)

14g

View Answer
76) Which is the correct order of increasing energy of the listed orbitals in the atom of titanium?

A)

        3s 4s 3p 3d

B)

4s 3s 3p 3d

C)

       3s 3p 3d 4s

D)

       3s 3p 4s 3d

View Answer
77) Reaction of a carbonyl compound with one of the following reagents involves nucleophilic addition followed by the elimination of water. The reagents is

A)

a Grignard reagent

B)

hydrazine in presence of feebly acidic solution

C)

hydrocyanic acid

D)

sodium hydrogen sulphate

View Answer
78) The variation of the boiling point of the hydrogen halides is in the order \[HF>HI>HBr>HCl\]. What explains the higher boiling point of hydrogen fluoride?

A)

The electronegativity of fluorine is much higher than for other elements in the group

B)

There is strong hydrogen bonding between HF molecules

C)

The bond energy of HF molecules is greater than in other hydrogen halides

D)

The effect of nuclear shielding is much reduced in fluorine which polarizes the HF molecule

View Answer
79) The name of complex ion, \[{{[Fe{{(CN)}_{6}}]}^{3-}}\] is

A)

hexacyanoiron (III) ion

B)

hexacyanitoferrate (III) ion

C)

tricyanoferrate (III) ion

D)

hexacyanidoferrate (III) ion

View Answer
80) Method by which aniline cannot be   prepared is

A)

hydrolysis phenyl isocyanide with acidic solution

B)

degradation of benzamide with bromine in alkaline solution

C)

reduction of nitrobenzene with                                                                                                     \[{{H}_{2}}/Pd\] in ethanol

D)

potassium salt of phthalimide treated with chlorobenzene followed by the hydrolysis with aqueous \[NaOH\] solution

View Answer
81) If the equilibrium constant for \[{{N}_{2}}(g)+{{O}_{2}}(g)\rightleftharpoons 2NO(g)\] is K, the equilibrium constant for                    \[\frac{1}{2}{{N}_{2}}(g)+\frac{1}{2}{{O}_{2}}(g)NO(g)\] will the

A)

\[{{K}^{1/2}}\]

B)

\[\frac{1}{2}K\]

C)

       K

D)

       \[{{K}_{2}}\]

View Answer
82) Strong reducing behavior of \[{{H}_{3}}P{{O}_{4}}\] is due to

A)

presence of one \[-OH\] group and two \[P-H\] bonds

B)

high electron gain enthalpy of phosphorus

C)

high oxidation state of phosphorus

D)

presence of two \[-OH\] groups and one \[P-H\] bond

View Answer
83) 2, 3-dimethyl-2-butene can be prepared by heating which of the following compounds with a strong acid?

A)

\[{{(C{{H}_{3}})}_{2}}CH-\underset{\underset{\text{C}{{\text{H}}_{\text{3}}}}{\mathop{|}}\,}{\mathop{CH}}\,-CH=C{{H}_{2}}\]

B)

\[{{(C{{H}_{3}})}_{3}}C-CH=C{{H}_{2}}\]

C)

\[{{(C{{H}_{3}})}_{2}}C=CH-C{{H}_{2}}-C{{H}_{3}}\]

D)

\[{{(C{{H}_{3}})}_{2}}CH-C{{H}_{2}}-CH=C{{H}_{2}}\]

View Answer
84) Aqueous solution of which of the following compounds is the best conductor of electric current?

A)

        Acetic acid. \[{{C}_{2}}{{H}_{4}}{{O}_{2}}\]

B)

Hydrochloric acid, \[HCl\]

C)

Ammonia, \[N{{H}_{3}}\]

D)

Fructose, \[{{C}_{6}}{{H}_{12}}{{O}_{6}}\]

View Answer
85) The vacant space in bcc lattice cell is

A)

26%

B)

48%

C)

23%

D)

32%

View Answer
86) What is the mole fraction of the solute in a 1.00 m aqueous solution?

A)

0.177

B)

1.770

C)

0.0354

D)

0.0177

View Answer
87) The oxidation of benzene by \[{{V}_{2}}{{O}_{5}}\] in the presence of air produces

A)

benzoic anhydride

B)

maleic anhydride

C)

benzoic acid

D)

       benzaldehyde

View Answer
88) Caprolactum is used for the manufacture of

A)

nylon-6

B)

Teflon

C)

       terylene

D)

       nylon-6 6

View Answer
89) The following reaction, is known by the name

A)

Friedel-Crafts reaction

B)

Perkins reaction

C)

Acetylation reaction

D)

Schotten-Baumann reaction

View Answer
90) The number of water molecules is maximum in

A)

18 molecules of water

B)

1.8 g of water

C)

18 got water

D)

18 moles of water

View Answer
91) Read the different components from I to IV in the list given below and tell the correct order of the components with reference to their arrangement from outer side to inner side in a woody dicot stem

I. Secondary cortex

II. Wood

III. Secondary phloem

IV. Phellem

The correct order is

A)

III, IV, II, I

B)

I, II, IV, III

C)

IV, I, III, II

D)

IV, III, I, II

View Answer
92) Chromatophores take part in

A)

photosynthesis

B)

growth

C)

movement

D)

       respiration

View Answer
93) Which of the following joints would allow no movement?

A)

Fibrous joint

B)

Cartilaginous joint

C)

       Synovial joint

D)

     Ball and socket joint

View Answer
94) The wheat grain has an embryo with one large, shield-shaped cotyledon known as

A)

epiblast

B)

coleorhiza

C)

       scutellum

D)

       coleoptile

View Answer
95) A gene showing codominance has

A)

one allele dominant on the other

B)

alleles tightly (inked on the same chromosome

C)

alleles that are recessive to each other

D)

both alleles independently expressed in the Heterozygote

View Answer
96) Which of the following structure is not found in a prokaryotic cell?

A)

Nuclear envelop

B)

Ribosome

C)

       Mesosome

D)

       Plasma membrane

View Answer
97) The term linkage was coined by

A)

TH Morgan

B)

T Boveri

C)

                       G Mendel

D)

       W Sutton

View Answer
98)                 The imperfect fungi which are decomposers of litter and help in mineral cycling belong to

A)

Deuteromycetes

B)

Basldiomycetes

C)

      Phycomycetes

D)

      Ascomycetes

View Answer

99) Match the columns and identify the correct option

Column I	Column II
A. Thylakoids	1. Disc-shaped sacs in Golgi apparatus
B. Cristae	2. Condensed structure of DNA
C. Cisternae	3. Flat membranous sacs in stroma
D. Chromatin	4. Infoldings in mitochondria

A-4 B-3 C-1 D-2

A-3 B-4 C-1 D-2

A-3 B-1 C-4 D-2

A-3 B-4 C-2 D-1

View Answer

100) Select wrong statement.

A)

The viroids were discovered by DJ Ivanowski.

B)

WM Stanley showed that viruses could be crystallized.

C)

The term 'contagium vivum fluidum' was coined by MW Beijerinek.

D)

Mosaic disease in tobacco and AIDS in human being are caused by viruses.

View Answer
101) During   biological   nitrogen   fixation, inactivation of nitrogenase by oxygen poisoning is prevented by

A)

leghaemoglobin

B)

       xanthophyll

C)

       carotene

D)

       cytochrome

View Answer
102) The species confined to a particular region and not found elsewhere is termed as

A)

keystone

B)

alien

C)

                                                       endemic

D)

       rare

View Answer
103) Which one of the following hormones is not involved in sugar metabolism?

A)

Cortisone

B)

Aldosterone,

C)

                       Insulin

D)

       Glucagon

View Answer
104) Which of the following is not a function of the skeletal system?

A)

Production of erythrocytes

B)

Storage of minerals

C)

Production of body heat

D)

Locomotion

View Answer
105) Which one of the following is not applicable to RNA?

A)

Complementary base pairing

B)

5' phosphoryl and 3' hydroxyl ends

C)

Heterocyclic nitrogenous bases

D)

Chargaff's rule

View Answer
106) Which one is a wrong statement?

A)

Archegonia are found in Bryophyta, Pteridophyta and Gymnosperms.

B)

Mucor has biflagellate zoospores.

C)

Haploid endosperm is typical feature of gymnosperms.

D)

Brown algae have chlorophyll-a and c, and fucoxanthin.

View Answer
107) A childless couple can be assisted to have a child through a technique called GIFT. The full form of this technique is

A)

Gamete Inseminated Fallopian Transfer

B)

Gamete Intra Fallopian Transfer

C)

Gamete Internal Fertilization and Transfer

D)

Germ Cell Internal Fallopian Transfer

View Answer
108) The wings of a bird and the wings of an insect are

A)

homologous structures and represent divergent evolution

B)

analogous structures and represent convergent evolution

C)

phylogenetic structures and represent divergent evolution

D)

homologous structures and represent convergent evolution

View Answer
109) Golden rice is a genetically modified crop plant where the incorporated gene is meant for biosynthesis of

A)

vitamin-B

B)

vitamin-C

C)

                                       omega 3

D)

       vitamin-A

View Answer
110) Outbreeding is an important strategy of animal husbandry because it

A)

help in accumulation of superior genes

B)

is useful in producing purelines of animals

C)

is useful in overcoming inbreeding depression

D)

exposes harmful recessive genes that are eliminated by selection

View Answer
111) Which one of the following hormones though synthesized elsewhere, is stored and released by the master gland?

A)

Antidiuretic hormone

B)

Luteinizing hormone

C)

Prolactin

D)

Melanocyte stimulating hormone

View Answer
112) An association of individuals of different species living in the same habitat and having functional interactions is

A)

ecological niche

B)

biotic community

C)

       ecosystem

D)

      population

View Answer
113) In which of the following both pairs have correct combination?

A)

Gaseous nutrient cycle Carbon and nitrogen

Sedimentary nutrient cycle Sulphur and Phosphorus

B)

Gaseous nutrient cycle Carbon and sulphur

Sedimentary nutrient cycle Nitrogen and Phosphorus



C)

Gaseous nutrient cycle Nitrogen and sulphur

Sedimentary nutrient cycle Carbon and Phosphorus



D)

Gaseous nutrient cycle Sulphur and Phosphorus

Sedimentary nutrient cycle Carbon and nitrogen

View Answer
114) Identify the correct order of organization of genetic material from largest to smallest

A)

chromosome, gene, genome, nucleotide

B)

genome, chromosome, nucleotide, gene

C)

genome, chromosome, gene nucleotide

D)

chromosome, genome nucleotide, gene

View Answer
115) A jawless fish, which lays eggs in fresh water and whose ammocoetes larvae after metamorphosis return to the ocean is

A)

Eptatretus

B)

Myxine

C)

                       Neomyxine

D)

       Petromyzon

View Answer
116) Industrial melanism is an example of

A)

Neo Darwinism

B)

Natural selection

C)

       Mutation

D)

       Neo Lamarckism

View Answer
117) Cell wall is absent in

A)

Aspergillus

B)

Funaria

C)

                       Mycoplasma

D)

       Nostoc

View Answer
118) The chitinous exoskeleton of arthropods is formed by the polymerisation of

A)

keratin sulphate and chondroitin sulphate

B)

D-glucosamine

C)

N-acetyl glucosamine

D)

lipoglycans

View Answer
119) Fusiform apparatus is characteristic feature of

A)

generative cell

B)

nucellar embryo

C)

       aleurone cell

D)

       synergids

View Answer
120) In angiosperms, microsporogenesis and megasporogenesis

A)

occur in anther

B)

form gametes without further divisions

C)

involve meiosis

D)

occur in ovule

View Answer
121) Metagenesis refers to

A)

the presence of different morphic forms

B)

alternation of generation between asexual and sexual phases of an organism

C)

occurrence of a drastic change in form during post-embryonic development

D)

the presence of a segmented body and parthenogenetic mode of reproduction

View Answer
122) Which of the following immunoglobulins does constitute the largest percentage in human milk?

A)

                                                                                                                                                        \[\text{lgD}\]

B)

\[\text{lgM}\]

C)

                       \[IgA\]

D)

       \[\lg G\]

View Answer
123) Destruction of the anterior horn cells of the spinal cord would result in loss of

A)

sensory impulses

B)

voluntary motor impulses

C)

commissural impulses

D)

integrating impulses

View Answer
124) The cutting of DNA at specific locations became possible with the discovery of

A)

restriction enzymes

B)

probes

C)

       selectable markets

D)

ligases

View Answer
125) In the following human pedigree, the filled symbols represent the affected individuals. Identify the type of given pedigree

A)

Autosomal dominant

B)

X-linked recessive

C)

Autosomal recessive.

D)

X-linked dominant

View Answer
126) A colour blind man marries a woman with normal sight who has no history of colour blindness in her family. What is the probability of their grandson being colour blind?

A)

0.5

B)

1

C)

Nil

D)

0.25

View Answer
127) Flowers are unisexual in

A)

pea

B)

cucumber

C)

       china rose

D)

       onion

View Answer
128) Roots play insignificant role in absorption of water in

A)

sunflower

B)

Pistia

C)

                       pea

D)

       wheat

View Answer
129) Balbiani rings are sites of

A)

lipid synthesis

B)

nucleotide synthesis

C)

polysaccharide synthesis

D)

RNA and protein synthesis

View Answer
130) Which of the following pairs is not correctly match?

A)

Mode of reproduction Example

Offset Water hyacinth

B)

Mode of reproduction Example

Rhizome Banana

C)

Mode of reproduction Example

Binary fission Sargassum

D)

Mode of reproduction Example

Conidia Penicilllum

View Answer
131) Ectopic pregnancies are referred to as

A)

pregnancies with genetic abnormality

B)

implantation of embryo at site other than uterus

C)

implantation of defective embryo in the uterus

D)

pregnancies terminated due to the hormonal imbalance

View Answer
132) Choose the wrong statement.

A)

Penicillium is multicellular and produces antibiotics.

B)

Neurospora is used in the study of biochemical genetics.

C)

Morels and truffles are poisonous mushrooms.

D)

Yeast is unicellular and useful in fermentation.

View Answer
133) The function of the gap junction is to

A)

performing cementing to keep neighbouring cells together

B)

facilitate communication between adjoining cells by connecting the cytoplasm for rapid transfer of ions small molecules and some large molecules

C)

separate two cell from each other

D)

stop substance from leaking across a tissue

View Answer
134) Axile placentation is present in

A)

dianthus

B)

lemon

C)

       pea

D)

       Argemone

View Answer
135) Which of the following are not membrane bound?

A)

Vacuoles

B)

Ribosomes

C)

       Lysosomes

D)

       Mesosomes

View Answer
136) In his classic experiments on pea plants, Mendel did not use

A)

seed colour

B)

pod length

C)

       seed shape

D)

       flower position

View Answer
137) During ecological succession

A)

the gradual and predictable change in species composition occurs in a given area

B)

the establishment of a new biotic community is very fast in its primary phase

C)

the numbers and types of animals remain constant

D)

the changes lead to a community that is in ear equilibrium with the environment and is called pioneer community.

View Answer
138) The body cells in cockroach discharge their nitrogenous waste in the haemolymph mainly in the form of

A)

ammonia

B)

       potassium urate

C)

urea

D)

       calcium carbonate

View Answer
139) Which of the following biomolecules does have a phosphodiester bond?

A)

Fatty acids in a diglyceride

B)

Monosaccharides in a polysaccharide

C)

Amino acids in a polypeptide

D)

Nucleic acids in a nucleotide

View Answer
140) The UN conference of Parties on climate change in the year 2012 was held at

A)

Durban

B)

Doha

C)

       Lima

D)

       Warsaw

View Answer
141) Arrange the following events of meiosis in correct sequences

I. Crossing over

II. Synapsis

III. Terminalisation of chiasmata

IV. Disapperance of nucleolus

A)

II, I, IV, III

B)

II. I, III, IV

C)

       I, II, III, IV

D)

     II, III, IV, I

View Answer
142) Root pressure develops due to

A)

active absorption

B)

low osmotic potential in soil

C)

passive absorption

D)

increase in transpiration

View Answer
143) Which one of the following animals has two separate circulatory pathways?

A)

Frog

B)

Lizard

C)

Whale

D)

       Shark

View Answer
144) Which of the following events in not associated with ovulation in human female?

A)

Decrease in oestradiol

B)

Full development of Graafian follicle

C)

Release of secondary oocyte

D)

LH surge

View Answer
145) Most animals that in deep oceanic water are

A)

primary consumers

B)

secondary consumers

C)

tertiary consumers

D)

detritivores

View Answer
146) If you suspect major deficiency of antibodies in a person, to which of the following would you look for confirmatory evidence?

A)

Fibrinogin in plasma

B)

Serum albumins

C)

Haemocytes

D)

       Serum globulins

View Answer
147) The structures that help some bacteria to attach to rocks and/or host tissues are

A)

rhizoids

B)

fimbriae

C)

       mesosomes

D)

       holdfast

View Answer
148) Increase in concentration of the toxicant at successive tropic levels is known as

A)

biomagnification

B)

biodeterioration

C)

biotransformation

D)

biogeochemical cycling

View Answer
149) Body having meshwork of cells, internal cavities lined with food filtering flagellated cells and indirect development are the characteristics of phylum

A)

Coelenterata

B)

Porifera

C)

       Mollusca

D)

       Protozoa

View Answer
150) The oxygen evolved during photosynthesis comes from water molecules. Which one of the following pairs of elements involved in this reaction?

A)

Manganese and chlorine

B)

Manganese and potassium

C)

Magnesium and molybdenum

D)

Magnesium and chlorine

View Answer
151) The primary dentition in human differs from permanent dentition in not having one of the following type of teeth

A)

Canine

B)

     Premolars

C)

Molars

D)

Incisors

View Answer
152) Coconut water from a tender coconut is

A)

immature embryo

B)

free nuclear endosperm

C)

innermost layers of the seed coat

D)

degenerated nucellus

View Answer
153) Which of the following layers in an antral follicle is acellular?

A)

Granulosa

B)

Theca internal

C)

       Stroma

D)

       Zona pellucicia

View Answer
154) The introduction of tDNA into plants involves

A)

infection of the plant by Agrobacterium tumefaciens

B)

altering the pH of soil, heat-shocking the plants

C)

exposing the plants to cold for a brief period

D)

allowing the plant roots to stand in water

View Answer
155) In which group of organisms the cell walls form two thin overlapping shells which fit together?

A)

Chrysophytes

B)

Euglenoids

C)

                       Dinoflagellates

D)

       Slime moulds

View Answer
156) Human urine is usually acidic because

A)

the sodium transporter exchanges one hydrogen ion for .each sodium ion, in peritubular capillaries

B)

excreted plasma proteins are acidic

C)

potassium and sodium exchange generates acidity

D)

hydrogen ions are actively secreted into the filtrate

View Answer
157) In photosynthesis, the light-independent reactions take place at

A)

thylakoid lumen

B)

photosystem I

C)

       photosystem II

D)

     stromal matrix

View Answer
158) In mammalian eye, the 'fovea' is the center of the visual field, where

A)

high density of cones occur, but has no rods

B)

the optic nerve leaves the eye

C)

only rods are present

D)

more rods than cones are found

View Answer
159) The DNA molecule to which the gene of interest is integrated for cloning is called

A)

transformer

B)

vector

C)

       template

D)

       carrier

View Answer
160) Pick up the wrong statement.

A)

Cell wall is absent in Animalia.

B)

Protista have photosynthetic and heterotrophic modes of nutrition.

C)

Some fungi are edible.

D)

Nuclear membrane is present in Monera.

View Answer
161) Among China rose, mustard, brinjal, potato, guava, cucumber, onion and tulip, how many plants have superior ovary?

A)

Five

B)

Six

C)

Three

D)

Four

View Answer
162) Name the pulmonary disease in which alveolar surface area involved in gas exchange is drastically reduced due to damage in the alveolar walls.

A)

Pleurisy

B)

Emphysema

C)

       Pneumonia

D)

       Asthma

View Answer
163) A column of water within xylem vessels of tall trees does not break under its weight because of

A)

dissolved sugars in water

B)

tensile strength of water

C)

lignification of xylem vessels

D)

positive root pressure

View Answer
164) Acid rain is caused by increase in the atmospheric concentration of

A)

\[S{{O}_{2}}\]and \[N{{O}_{2}}\]

B)

\[S{{O}_{3}}\]and \[CO\]

C)

                       \[C{{O}_{2}}\]and \[CO\]

D)

       \[{{O}_{3}}\] and dust

View Answer
165) The enzyme that is not present in succus entericus is

A)

maltase

B)

nucleases

C)

       nucleosidase

D)

       lipase

View Answer
166) In which of the following interactions both partners are adversely affected?

A)

Competition

B)

Predation

C)

       Parasitism

D)

       Mutualism

View Answer

167) Match the following list of microbes and

Column-I	Column-II
A. Saccharomyces cerevisiae	1. Production of immuno suppressive agents
B. Monascus purpureus	2. Ripening of Swiss cheese
C. Trichoderma polysporum	3. Commercial production of ethanol
D. Propionibacterium sharmanii	4. Production of blood-cholesterol lowering agents

A-3 B-4 C-1 D-2

A-4 B-3 C-2 D-1

A-4 B-2 C-1 D-3

A-3 B-1 C-4 D-2

View Answer

168) A pleiotropic gene

A)

is expressed only in primitive plants

B)

is a gene evolved during Pliocene

C)

controls a trait only in combination with another gene

D)

controls multiple traits in an individual

View Answer
169) A protoplast is a cell

A)

without plasma membrane

B)

without nucleus

C)

undergoing division

D)

without cell wall

View Answer
170) Which of the following are most suitable indicators of \[S{{O}_{2}}\] pollution in the environment?

A)

Lichens

B)

Conifers

C)

Algae

D)

Fungi

View Answer
171) Grafted kidney may be rejected in a Patient due to

A)

humoral immune response

B)

cell-mediated immune response

C)

passive immune response

D)

innate immune response

View Answer
172) Which one of the following fruits is parthenocarpic?

A)

Brinjal

B)

Apple

C)

       Jackfruit

D)

       Banana

View Answer
173) Which of the following diseases is caused by a protozoan?

A)

Syphilis

B)

Influenza

C)

       Babesiosis

D)

       Blastomycosis

View Answer
174) In human females, meiosis-II is not completed until

A)

puberty

B)

fertilization

C)

     uterine implantation

D)

birth

View Answer
175) Male gametophyte in angiosperms produces

A)

two sperms and a vegetative cell

B)

single sperm and a vegetative cell

C)

single sperm and two vegetative cells

D)

three sperms

View Answer
176) Doctors use stethoscope to hear the sounds produced during each cardiac cycle. The second sound is heard when

A)

AV valves open up

B)

Ventricular walls vibrate due to gushing in of blood from atria

C)

Semilunar valves close down after the blood flows into vessels from ventricles

D)

AV node receives signal from SA node

View Answer
177) Auxin can be bioassayed by

A)

Avena coleoptile curvature

B)

hydroponics

C)

photometer

D)

lettuce hypocotyl elongation

View Answer
178) Satellite DNA is important because it

A)

codes for proteins needed in cell cycle

B)

shows high degree of polymorphism in population and also the same degree of polymorphism in an individual which is heritable from parents to children

C)

does not code fro proteins and is same in all members of the population

D)

codes for enzymes needed for DNA replication

View Answer
179) Cellular organelles with membranes are

A)

a nuclei, ribosomes and mitochondria

B)

chromosomes, ribosomes and endoplasmic reticulum

C)

endoplasmic reticulum, ribosomes and nuclei

D)

lysosomes. Golgi apparatus and mitochondria.

View Answer
180) Eutrophication of water bodies leading to killing of fishes is mainly dup to non-availability of

A)

food

B)

light

C)

       essential minerals

D)

oxygen

View Answer

Study Package

NEET Solved Paper-2015 (Re)

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Gaseous nutrient cycle	Carbon and nitrogen
Sedimentary nutrient cycle	Sulphur and Phosphorus

Gaseous nutrient cycle	Carbon and sulphur
Sedimentary nutrient cycle	Nitrogen and Phosphorus

Gaseous nutrient cycle	Nitrogen and sulphur
Sedimentary nutrient cycle	Carbon and Phosphorus

Mode of reproduction	Example
Offset	Water hyacinth

Mode of reproduction	Example
Rhizome	Banana

Mode of reproduction	Example
Binary fission	Sargassum

Mode of reproduction	Example
Conidia	Penicilllum

Solved papers for NEET NEET SOLVED PAPER 2015 (Re)

done NEET SOLVED PAPER 2015 (Re) Total Questions - 180

Study Package

NEET Solved Paper-2015 (Re)

NEET SOLVED PAPER 2015 (Re) Total Questions - 180