Post on 21-May-2018
ROUGH
1. The dimensions of he are same as that of (where h = planck's constant and e = charge)
1) Magnetic field induction 2) Magnetic flux
3) Electric field strength 4) Elctric flux
2. A block A is pulled on a smooth horizontal plane with a rope which moves with velocity as shown in figure. The velocity of the block on the plane 'u' is
v
u
smooth
1) cos ec 2) s in 3) cos 4) sec
Pattern of the Entrance Test:-1) The Entrance Test shall consist of one paper containing 180 objective type questions (fouroptions with single correct answer) from Physics, Chemistry and Biology (Botany & Zoology) tobe answered on the specially designed machine-gradable sheet using Ball Point Pen only. Theduration of paper would be 03 hours2) Each item carries 4 marks. For each correct response the candidate will get 4 marks. For eachincorrect response one mark will be deducted from the total score.
NEET PAPER -2PHYSICS
ROUGH
3. Find the value of p so that ˆ ˆˆ ˆ ˆ ˆ2 , 2 3i j k i j k and ˆˆ ˆ3 5i pj k may be coplanar
1) -8 2) -4 3) 2 4) 44. A stationary body of mass 3kg explodes into three equal pieces. Two of the pieces fly off at
at right angles to each other, one with a velocity ˆ2i ms–1 and the other with a velocityˆ3 j ms–1. If the explosion takes plece in 10–5s, the average force acting on the third piece
in newton is
1) 5ˆ ˆ2 3 10i j 2) 5ˆ ˆ2 3 10i j 3) 5ˆ ˆ3 2 10j i 4) 5ˆ ˆ2 3 10i j
5. A small particle of mass m is released from rest from point A on frictionless hemispheri-cal bowl as shown in figure. The ratio of magnitude of centripetal force and normal reacitonon the particle at any point B is
OA
BR
1) 2/3 2) 1/2 3) 2/3 4) 4/56. A body is projected up a smooth inclined plane with velocity u from the point A as shown
in fig. The height of the inclined plane is 5.4m and the top of the inclind plane is con-nected to a well of diameter 3.6m. the body just manages to cross the well. The value ofu is ( g= 10ms–2)
045
5.4m
3.6m
u
v
1) 20ms–1 2) 12ms–1 3) 30ms–1 4)54ms–1
ROUGH
7. Two blocks, A of mass 1kg and another B of mass 2kg are shown in figure. A force of 5N isapplied on A. Coefficient of friction between A and B is 0.2 and that between B and hori-zontal surface is zero. Find the time taken for the front face of A to coincide with that of B:
8cmB
A 5N
4cm
1) 2s 2) 83
s 3) 38
s 4) 0.2s
8. When a body is moving vertically up with constant velocity, then match the followingColumn-I Column -II
1) Work done by lifting force is A) Negative2) Total work done byall the forces is B) Positive3) Work done by gravity C) Zero4) Work done by lifting force + work done by gravity D) Higher positive values1) 1 - B, 2 - C, 3 - A, 4 - C 2) 1 - B, 2 - D, 3 - C, 4 - A3) 1 - B, 2 - A, 3 - C, 4 - D 4) 1 - A, 2 - A, 3 - C, 4 - D
9. A ladder of length 6m and mass 40kg rests with its upper end against a smooth wall andlower end on rough ground. Find the minimum coefficient of friction between the groundand the ladder so that the ladder does not slip if the ladder makes an angel of 600 with thehorizontal ( take g =10ms–2)
1) 1
2 3 2) 32
3) 12 4)
13
10. During the vapourization of some amount of water at 373K at atmospheric pressure whichof the following statements is correct ?
a) Work is done by the steam – water system on the atmosphereb) Work is done on the steam – water system by the atmospherec) The internal energy of the steam – water system increasesd) The internal energy of the steam – water system decreases1. a, c only 2. b, d only 3. b, c only 4. a, d only
ROUGH
11. Which of the following is not correct about the centre of mass?1) It depends on the frame of reference2) The angular momentum of a system about the centre of mass is always zero3) Internal forces do not affect the motion of centre of mass4) Centre of mass may or may not coincide with centre of gravity
12. Two billiard balls of the same size (radius r ) and same mass are in contact on a billiardtable. A third ball also of the same size and mass strikes them symmetrically and remainsat rest after the impact. The coefficient of restitution between the balls is1) 1/3 2) 2/3 3) 1/2 4) 3/4
13. Find the ratio of energy required to raise a satellite upto a height R (radius of earth)from the surface of earth to that required to put it into an orbit at that height.
1) 2/3 2)32 3)
43 4)
34
14. A wire is suspended vertically from a rigid support. When a weight W is hanged from itslower end, in air, the wire extends by 16cm. When the weigth is completely immersed inwater, the extension reduces to 12cm. Then the relative density of the material of theweigth is1) 5gcm–3 2) 8gcm–3 3) 4gcm–3 4) 6gcm–3
15. A small block of wood of specific gravity 0.4 is submerged at a depth of 1.6m in a con-
tainer containing water. The container is accelerated upward with an aceleration 3g
.
Then the time taken by the block to reach the surface when released with zero initialvelocity is1) 0.4s 2) 0.5s 3) 0.1s 4) 0.2s
16. When a liquid is poured, it insists to runs down the side of the can instead of fallingstraight down from the tip as shown in fig. This can be explained by
1) Viscosity 2) Surface tension3) Bernoulli's principle 4) Newton's third law of motion
ROUGH
17. A flask with open mouth contains air at 270C. Find the temperature at which 25
th mass of
the air escapes the flask.1) 2270C 2) 3000C 3) 2460C 4) 2730C
18. Three rods A, B and C made of the same material and having the same cross-section havelengths 10cm, 20cm and 10cm respectively. Their ends are at temperatures 600C, 600Cand 00C as shown. Then the temperature of the junction D is
AC
BD10cm00C 600C
600C
10cm
20cm
1) 300C 2) 360C 3) 500C 4) 400C19. Three moles of an ideal monoatomic gas perform on cycle as shown. The gas tempera-
tur es in dif fer ent states ar e T 1= 400K, T2= 800K, T3= 2400K & T4=1200K. The workdone by the gas during the cycles is approximately.
P
T
14
32
O
1) 10kJ 2) 20kJ 3) 30kJ 4) 15kJ20. Assertion (A): Mean free path of the molecule of a gas varies inversely as the density of
the gasReason (R): Mean free path varies inversely as pressure of the gas. 1) A and R are true and R is the correct explanation of A
2) A and R are true but R is not the correct explanation of A 3) A is true but R is false 4) A is flase but R is true21. A particle performs SHM with a period of 16s. At time t=2s, the particle passes through
origin (MP), while at t=4s, its velocity is 4ms-1. Its amplitude is ______
1) 32 2
2) 16 3
3) 224 2
4) 162
ROUGH
22. Speed of sound is 320m/s and frequency of sound wave entering at A is 500Hz. No sound isheard at B as shown in fig. Then the length of the curved path curved path CDE may be
A
C
D
EB
1) 16cm 2) 32cm 3) 48cm 4) 88cm23. A radar sends a radio signal of frequency 99 10 Hz towards an aircraft approaching the
radar. If the reflected wave shows a frequency shift of 33 10 Hz, the speed with which theaircraft is approaching the radar in ms–1 [ Velocity of the radio signal = 3X108ms–1]1) 150 2) 100 3) 50 4) 25
24. Two similar charged spheres are suspended by strings of equal lengths. The strings makean angle of 300 with each other. When suspended in a liquid of density 0.8gm/cc, theangle remains the same. What is the dielectric constant of the liquid ? Given density ofmaterial of the spheres =1.6gm/cc.1) 3 2) 4 3) 2 4) 5
25. The equipotential lines and their positions in x –y plane are shown in figure. Find electricfield internsity in this region
4V 8V 12V
x
y
300 300300
5cm 10cm 15cm
1) 140 V/m 2) 160 V/m 3) 120 V/m 4) 180 V/m26. An electrical dipole is placed at the origin and is directed along the x-axis At a point P,
far away from the dipole, the electric field is parallel to the y- axis. OP makes an angle with the x- axis then
1) tan 3 2) tan 2 3) 045 4) 1tan2
ROUGH
27. The LED, i.e., light emitting diodea) is made from Ge or Si b) is made from Ga As Pc) is forward biased d) is reverse biased1) a and b are correct 2) b and c are correct3) a, b and c are correct 4) a, b and d are correct
28. Two radioactive materials X1 and X2 have decay constants 10 and respectively. Ifinitially they have the same number of nuclei, then the ratio of the number of nuclei of X1to that of X2 will be 1/e after a time of
1) 1
10 2) 1
11 3) 11
10 4) 1
9
29. Assertion (A): Free electrons in conductors do not acquire infinite velocity even after
infinite time though acceleration is eEam
.
Reason (R): The velocity acquired by them becomes zero after every collision with thelattice sites 1) A and R are true and R is the correct explanation of A
2) A and R are true but R is not the correct explanation of A 3) A is true but R is false 4) A is flase but R is true30. Resistance of potentiometer wire AB is 10 . This is in series with a battery of 5V and a
resistance 40R . The length of the potentiometer wire is 5m. The null point is obtainedat 2m from the end A . Find emf 'E'.
40R 5V
A BD
E
1) 2V 2) 0.2V 3) 20mV 4) 0.4V31. A tightly wound long solenoid of the radius r metre and number of turns per metre equal
to n, carries a current of i amp. A paticle of mass m and charge q projected from a point onits axis in a direction at right angle to its axis. Find the maximum velocity of the particleso that it may not touch the solenoid
1) 0nqrim
2) 0
4nqrim
3) 0
2mnri
4) 0
2riqmn
ROUGH
32. A galvanometer of 25 resistance can read a maximum currect of 6mA. It can be used asa voltmeter to measure maximum of 6V by connecting a resistance to the galvanometer.Identify the correct choice in the given answers.1) 1025 in series 2)1025 in parallel 3) 975 in series 4) 975 in parallel
33. When a current is passed in a circular coil, neutral point is found to be at its centre andBH
at that place is 40.32 10 T . What will be the resultant magnetic field at the centrewhen the plane of the coil is turned though 900 ?1) 40.32 10 T 2) 40.64 10 T 3) 40.45 10 T 4) 40.16 10 T
34. The material suitable for making electromagnets should have:1) High retentivity and high coercivity 2) Low retentivity and high coercivity3) High retentivity and low coercivity 4) Low retentivity and low coercivity
35. The loop PQ, as shwon in figure moves with a velocity . Both loop and velocity are in theplane of paper and a magnetic field B
exists in the region perpendicular to plane anddirected inward. Find the emf induced between P and Q.
PAa QC b
vx x x x x x x
x x x x x x x
x x x x x x x
x x x x x x x
r
1) 2B r 2) 2B a b r 3) B a b r 4) B r
36. In ac a.c circuit, the current flowing is 5sin 100 / 2i t A and the potential difference
is 200sin 100V t V . The power consumption is equal to
1) 100W 2) 40W 3) 20W 4) 0W
ROUGH
37. In the given circuit each one of the diodes D1 and D2 has forward resistance of 40 ohm andinfinite backward resistance. Each one of the ammeters A1, A2 and A3 has internal resistance5ohm. The readings of A1A2 and A3 are respectively
75
1002D
1D
12V
3A
2A
1A
50
1) 0.06A, Zero, 0.04A 2) Zero, 0.08A, 0.03A3) 0.06A, Zero, 0.06A 4) 0.03A, 0.08A, Zero
38. The electric field of an electromagnetic wave in a medium is given by Ex= 0, yE =2.5 Vm
6 1 2 1[cos 2 10 10 ]rads t m x , Ez = 0, The wave is
1) Moving along x-direction with frequency 106 Hz and wavelength 100m2) Moving along x-direction with frequency 106 Hz and wavelength 200m3) Moving along -x-direction with frequency 106 Hz and wavelength 200m4) Moving along y-direction with frequency 106 Hz and wavelength 200m
39. An object is placed at a distance of 60cm from the lens. A convex mirror is placed asshown. The image thus formed coincides with the object. The focal length of the lens andmirror are 20cm and 12cm respectively. Find the distance between the lens and the convexmirror
f=12cm
X
60cm
1) 6cm 2) 12cm 3) 24cm 4) 30cm40. A driver uses a lens of power –1.25D for driving a car . The distance of far point of his eye
is:1) 125cm 2) 62.5cm 3) 80cm 4) 150cm
ROUGH
41. Modulation is required toa) Distinguish different transmissionsb) Ensure that the information may be transmitted over long distancesc) Allow the information accessible for different people1) a and b are true 2) b and c are true 3) c and a are true 4) a, b and c are true
42. A source emits electromagnetic waves of wavelength 3m. One beam reaches the observerdirectly and other after reflection from a water surface, travelling 1.5m extra distanceand with intensity reduced to 1/4 as compared to intensity due to the direct beam alone.The resultant intensity will be1) (1/4) fold 2) (3/4) fold 3) (5/4) fold 4) (9/4) fold
43. A particle of mass m at rest decays into two particles of masses m1 and m2
having non–
zero velocities. The ratio of de broglie wavelengths of the particles 1
2
is
1) 1
2
mm 2) 2
1
mm 3) 1 4) 2
1
mm
44. What is the force exerted by a photon of intensity 1.4kWm–2, if it falls on a perfect absorberof radius 2 metre?1) 55.88 10 N 2) 810 N 3) 48.35 10 N 4) 88.8 10 N
45. If the series limit of lymen series for hydrogen atom is equal to the series limit of Balmerseries for a hydrogen like atom, then atomic number of this hydrogen like atom is
1) 1 2) 2 3) 4 4) 8
ROUGH
46. Which of the following does not have spherical as well as angular node ?1) 1s 2) 2p 3) 3d 4) 5f
47. Equal masses of H2and He gases mixed in vessel recorded a pressure of 7.5 atm. Thepartial pressure of H2 is1) 4.8 atm 2) 2.4 atm 3) 5 atm 4) 7.5 atm
48. pH of a solution is changed from 2 to 5. What has been done to the solution ?1) 3 times dilution 2) 3 times concentration3) 100 times concentration 4) 1000 times dilution
49. The enthalpy of vaporization of benzene is 30.8 kJ mol-1 at its boiling point (80.10C).Calculate the entropy change in the condensation process.1) +87.3 JK-1 mol-1 2) -87.3 JK-1 mol-1 3) 240 JK-1 mol-1 4) -240 JK-1 mol-1
50. 2-3% gypsum is added to sample for1) increasing hardness 2) decreasing setting time3) increasing setting time 4) making is soft
51. AlCl3 and FeCl3 can be separated from their mixture by using1) NH4OH 2) NaOH 3) H2O 4) magnetic method
52. Which of the following are correct w.r.t D2O?1) It can be used as moderator 2) Its m.p. is 3.820C3) Its b.p. is 101.420C 4) All of these
53. 0.5 molal aqueous solutions of each of NaCl, BaCl2 and AlCl3 have boiling points T1, T2and T3 respectively. Which of the following is correct ?1) T1 > T2 > T3 2) T3 > T2 > T1 3) T2 > T1 > T3 4) T1 > T3 > T2
54. i) P Q A fast
ii) A R B slow
iii) B Q S T fast
are the elementary steps of the reactions,2P Q 2R S T
The rate law of the reaction is:
1) r = k [P] [Q] 2) r = k [P]2 [Q] [R]
33) 1/2 1/3r k P Q R 4) r k P Q R
55. NH3 gives brown precipitate with Nessler’s reagent. The formula of brown compound is :1) K2HgI4 2) 2H N Hg O Hg I
3) 3 2 2Ca P CaC 4) 4 42NH MoO
CHEMISTRY
ROUGH
56. In which of the following molecules/ions are all the bonds not equal ?
1) XeF4 2) 4BF 3) SF4 4) SiF4
57. If 0P , the d4 is represented as
1 ) 211 02g gt e 2) 111 1
2g gt e 3) 0 222g gt e 4) 1 21
2g gt e
58. CuSO4. H2O is blue in colour but anhydrous CuSO4 is white though in both copperexists as Cu2+ ion with one unpaired electron the reason is :1) CuSO4 (anhydrous) absorbs white light 2) CuSO4 . 5H2O absorbs blue light3) Splitting of d-sub shell occurs in CuSO4 (anhydrous) and absorption of orange red lighttakes place4) Splitting of d-sub shell occurs in CuSO4.5H2O and absorption of orange-red light takes place
59. Which one of the following elements, when present as an impurity in silicon makes it ap-type semiconductor?
1) As 2) P 3) In 4) Sb60. Buna-N synthetic rubber is a copolymer of
1) 2 2CH CH CH CH and 6 5 2C H CH CH
2) 2CH CH CN and 2 2CH CH CH CH
3) 2CH CH CN and 2 2
3
CH CH C CH|CH
4) 2 2
Cl|
CH CH C CH and 2 2CH CH CH CH
61. 0.24 g of a volatile substance displaced 53.78 mL of air at STP. The molecular mass of theof the substance is1) 24g 2) 53.78g 3) 50g 4) 100g
ROUGH
62. A fixed mass of a gas is subjected to transformation of states from K to L to M to N andback to K as shown
N M
PLK
V
The pair of isochoric processes among the transformations of sates is1) K to L and L to M 2) L to M and N to K 3) L to M and M to N 4) M to N and N to K
63. If fraction of space occupied in hcp is 'x' and in fcc is 'y', then1) x > y 2) x < y 3) x = y 4) uncertain
64. The energy of second Bohr's orbit in hydrogen atom is – 328kJ mol–1. The energy of thethird Bohr's orbit of H is1) – 583.11kJ mol–1 2) – 853.11kJ mol–1 3) – 145.78 kJ mol–1 4) – 511.83kJ mol–1
65. Which one of the following constitutes a group of the isoelectronic species ?1) 2 2N ,O , NO ,CO 2) 2
2 2C ,O ,CO, NO 3) 22 2NO ,C ,CN , N 4) 2 2
2 2 2CN , N ,O ,C
66. In which of the following the experimental dipole moment is more than what is expectedfrom theory ?
1)
CH3
CH3
2)
F
OH
3)
Cl
Cl
4) All of these
67. The reaction ,
6 6 2 2 215C H ( ) O g 6CO g 3H O( )2
l l is spontaneous, then which of the following is
correct ?1) H T S 2) H T S 3) H T S 4) H 0 and S 0
68. The dissociation equilibrium of a gas AB2 can be represented as
2 22AB g 2AB g B g
The degree of dissociation is 'x' and is small compared to 1. The expression relating thedegree of dissociation (x) with equilibrium constant Kp and total pressure P is
1) 1/3
p2K / P 2) 1/2
p2K / P 3) pK / P 4) p2K / P
ROUGH
69. The pH of water at 298 K is 7.0. If water is heated to 350 K, then1) pH will decrease, water will become acidic 2) pH will remain same3) pH will increase, water wil remain neutral 3) pH will decrease, water will remain neutral
70. 1 mole of each of A and B form an ideal solution of vapour pressure 100 mm Hg. Additionof 2 moles of B to it, decrease the vapour pressure by 20 mm Hg. Vapour pressures of Aand B in pure state are respectively1) 100 and 100 mm Hg 2) 100 and 80 mm Hg3) 60 and 140 mm Hg 4) 140 and 60 mm Hg
71. A 4.0 molar aqueous solutio of NaCl is prepared and 500mL of this solution is electrolysed.This leads to the evolution of chlorine gas at one of the electrodes. The total number ofmoles of chlorine gas evolveed is1) 0.5 2) 1.0 3) 2.0 4) 3.0
72. For the given three cells, which of the following is correct?
a) 2 21Zn Zn 1.0M Cu 1.0M Cu;E b) 2 2
2Zn Zn 1.0M Cu 10.0M Cu;E
c) 2 23Zn Zn 10.0M Cu 1.0M Cu;E
1) 1 2 3E E E 2) 3 2 1E E E 3) 2 1 3E E E 4) 1 2 3E E E 73. Which of the following graphs represents the first order reaction ?
1) Rat
e
Conc.
Slope=k 2) Con
c.
Time
3)
log
[A]
Time
Slope=-k
2.303
log[A]0Intercept constant
4) All represent 1st order reaction
74. A colloidal solution is subjected to an electrical field. The particles move towardsanode. The coagulation of same sol is studied using NaCl, BaCl2 and AlC3 solu-tions. Their coasgulating power should be
1) NaCl > BaCl2 > AlCl3 2) BaCl2 > AlCl3 > NaCl3) AlCl3 > BaCl2 > NaCl 4) BaCl2 > NaCl > AlCl3
ROUGH
75. Which is wrongly reported ?1) Spelter : impure zinc 2) Pig iron : impure iron3) Sphalerite : ZnO 4) Blister Copper : Impure Copper
76. 100 cm3 of a sample of H2O2 gives 1000cm3 of O2 at STP. The given sample is1) 10 volume H2O2 2) 100 volume H2O2 3) 10% H2O2 (W/V) 4) 2.786N
77. Cs2CO3 is highly soluble in water while BaCO3 quite sparingly soluble. Which of thefollowing is correct ?1) hydr . H dominates over lattice energy in case of Cs2CO3 while it is opposite in case of BaCO32) hydr . H dominates over lattice energy in case of BaCO3 while its opposite in case of Cs2CO3
3) Ksp of both Cs2CO3 and BaCO3is high 4) Ksp of both Cs2CO3 and BaCO3is low78. Which of these is not a monomer for a high molecular mass silicon polymer ?
1) 3Me SiCl 2) 3PhSiCl 3) 3MeSiCl 4) 2 2Me SiCl79. In 3
4PO , the bond order of P– O bond and formal charge on O – atom are, respectively1) 0.25, – 0.25 2) 0.50, – 0.50 3) 1.25, – 0.75 4) 0.75, – 1.25
80. Chormite ore 2 3Na CO /airfuseX Y .X and Y aree
1) 2 3 2 2 7Cr O and Na Cr O 2) 2 3 2 2 7FeO.Cr O and Na Cr O3) 2 3 2 4FeO.Cr O and Na CrO 4) 2 3 2 4Cr O and Na CrO
81. Kjeldahl's method can not be used to estimate nitrogen in which of the following com-pounds?
1) N 2) NH2 C NH2
O
3) NH2 4) All of these
82. Which of the following is the most stable carbocation
1) O2N CH2 2) CH2
3) CH3 CH2 4) CH3O CH2
83. How are the following related ?
I)CH3 CH2 CH2 N CH3
HII)
CH3 CH2 N CH3
CH3
III) CH3 CH2 CH2 CH2 NH2
1) I and II are position isomers 2) I and III are chain isomers3) I, II and III are metamers 4) I, II and III are functional isomers
ROUGH
84. Ozonolysis is of (using H2O/Zn) produces
1) 2 2 2HCHO OHC CH CH CH CHO 2) ||
2 2
O
HCHO OHC CH C CH CHO
3) 2 2 2 2 2CO H O OHC CH CH CH CHO 4) ||
2 2 2 2
O
H O CO OHC CH C CH CHO
85. Which of the following is a chain initiation step in the chlorination of CH4?
1) hvCl Cl 2 C l.
2) 4 3CH Cl CH HCl
. .
3) 3 2 3CH Cl CH Cl Cl
. . 4)
3 3 3 3C H C H CH CH. .
86. Ethanal is treated with HCN and the resulting compound on hydrolysis followed bypolymerisation gives 'X'. 'X' is used as / in1) Orthopedic devices 2) Making capsules3) Post operative stitches 4) Photo films
87. 3 2 2 3 3 2 2 3CH CH OH CH CH CH andCH CH CHOH CH CH
can be distinguished by
1) 2HCl / ZnCl 2) 2 4Br / CCl 3) 4KMnO / H 4) 2I / NaOH
88.
23
3
i O /AlCl2 2 3 ii H O
Cl CH CH CH P Q Phenol
The major product P and Q are
1) and CH3-CH2-CHO 2) and CH3-CH2-CHO
3) and CH3COCH34) and CH3-CH2-CHO
89. Which will oxidise glucose to gluconic acid ?1) Br2 water 2) Benedict solution 3) Tollens'reagent 4) All of these
90. In the titration of Oxalic acid solution with KMnO4, the substance working as catalyst is1) KMnO4 2) MnO2 3) Oxalic acid 4) MnSO4
ROUGH
91. In the five kingdom classification, Chlamydomonas and Chlorella have been included in1) Protista 2) Algae 3) Plantae 4) Monera
92. Maximum nutritional diversity is found in which of the following groups1) Fungi 2) Animalia 3) Monera 4) Plantae
93. The given figures show thalli of a liverwort. Identify the parts labelled as A, B, C, D inthat
a) b)
1) A - gemma cup ; B - rhizoids ; C- Roots ; D - Archegoniophore2) A - sporophyte ; B: rhizoids ; C - archegoniophore ; D - antheridiophore3) A - gemma cup ; B - rhizoids ; C - archegoniophore ; D - antheridiophore4) A - gemma cup ; B - roots ; C - archegoniophore ; D - antheridiophore
94. Consider the following statements regarding gymnosperms and choose the correctoption.A) In gymnosperms, the male and female gametophytes have an independent existence2) The multicellular female gametophyte is called endosperm3) The gymnosperms are heterosporous1) A and B are true but C is false 2) A and C are true but B is false3) B and C are false but A is true 4) B and C are true but A is false
95. How many plants in the list given below have tap root modifications - Banyan, Vanda,Turnip, Sweet potato, Groundnut, Sugarcane, Monstera1) Four 2) Two 3) Three 4) Five
BOTANY
ROUGH
96. Aerial roots are modified for both absorption and assimilation in this genus1) Vanda 2) Monstera 3) Banyan 4) Taeniophyllum
97. The structure which contains vascular bundle and is the modification of stem is1) Spine 2) Trichome 3) Thorn 4) Prickle
98. Green leaf like modified branches with a single internode are called1) Phyllode 2) Phylloclade 3) Bulbils 4) Cladode
99. Find the correct match:1) Mustard plant : leaves are opposite2) Guava plant : leaves are alternate3) Nerium plant : leaves are whorled4) Calotropis plant : leaves are alternate
100. Which of the following is not a tendril climber1) Smilax 2) Pisum 3) Grape vine 4) Bean
101. Cup shaped structure in the flower of guava is1) Thalamus 2) Peduncle 3) Bracts 4) Ovary
102. A character not applicable to chinarose is1) Alternate phyllotaxy2) Twisted aestivation in the second whorl of flower3) Cohesion in the third whorl of flower 4) Solitary, terminal inflorescence
103. Identify the types of placentations in the diagrams A, B, C, D given below respectively
1) Marginal, axile, parietal, basal 2) Marginal, axile, parietal, parietal3) Marginal, parietal, parietal, axile 4) Parietal, axile, parietal, marginal
ROUGH
104. Fleshy fruits that develop from inferior ovaries are found in1) Sunflower, apple, cucumber 2) Apple, cucumber, citrus3) Tomato, grapes, guava 4) Guava, apple, cucumber
105. Apomictic embryos in Citrus arise from1) Synergids 2) Maternal sporophytic tissue in ovule3) Antipodal cells 4) Diploid egg
106. Incorrect statement among the following1) In mustard flower stamens have no adhesion or cohesion2) In thorn apple stamens have adhesion, but not cohesion3) In sunhemp stamens have cohesion, but not adhesion4) In lily stamens have both cohesion and adhesion
107. Which of the following is wrongly matched:1) Aloe - medicine 2) Sesbania - green manure3) Thorn apple - fumigatory 4) Asparagus - vegetable
108. Which of the following biomolecules is correctly characterised ?1) Lecithin - a phosphorylated glyceride found in cell membrane2) Palmitic acid - an unsaturated fatty acid with 18 carbon atoms3) Adenylic acid - adenosine with glucose phosphate molecule4) Alanine amino acid - contains an amino group and acidic group anywhere in the molecule.
109. Identify the amino acids n-2, n-1, n, n+1 in the following representation of primarystructure a hypothetical protein
O H
2CH2 2 2CH OH CH CH
HN CH CO NH CH C O NH C H CO NH CH CO
2CHSH
2CH CO OH
n-2 n-1 n n+1
1) Glutamic acid, Tyrosine, Cysteine, Serine 2) Serine, cystine, Tyrosine, Glutamic acid3) Serine, Tyrosine, Glutamic acid, Cystine 4) Serine, Cystein, Tyrosine, Glutamic acid
ROUGH
110. What is true about ribosomes1) The prokaryotic ribosomes are 80 S, where "S" stands for sedimentation co-efficient2) These are composed of ribonucleic acid and protein3) These are found only in eukaryotic cells4) These are self - splicing introns of some ribozymes
111. If mitotic division is restricted in the G1-Phase of a cell cycle then the condition isknown as1) S-Phase 2) G2-Phase 3) M-Phase 4) G0-Phase
112. In the following diagram of phloem identify the parts labelled as A, B, C, D
1) A - Sieve pore, B - Sieve tube element, C-companion cell, D-Phloem parenchyma2) A - Sieve pore, B-sieve tube element, C-Phloem parenchyma, D-Companion cell3) A-perforation plate, B-Sieve element, C-Phloem parenchyma, D-companion cell4) A-Sieve pore, B-companion cell, C-sieve tube element, D- Phloem parenchyma
113. Which of the following statements is correct for secondary succession1) It begins on a bare rock 2) It occurs on a deforested site3) It follows primary succession4) It takes place slowly than that of primary succession
114. A cell is equally permeable to sucrose solution and NaCl solution. First the cell is putin 0.6 M sucrose solution, there is no change in size but when put in 0.6 M NaCl solutionthe size will1) Increase 2) Decrease 3) Remain same 4) Can't be said
115. Stomata open at night in1) hydrophytes 2) Succulents 3) mesophytes 4) halophytes
ROUGH
116. In the illustration of mass flow by Munch, identify A, B, C, D respectively
A BDC
1) A- dilute solution, B- concentrated solution, C-sink, D- source2) A- dilute solution, B- concentrated solution, C-source, D-sink3) A-concentrated solution, B-dilute solution, C- sink, D-pure water4) A- dilute solution, B-concentrated solution, C- sink, D-purewater
117. Which inhibitors are often used in the control of bacterial pathogens1) Feed back inhibitors 2) Non competitive inhibitors3) Competitive inhibitors 4) Allosteric inhibitors
118. Photosynthesis in C4 plants is relatively less effected by atmospheric CO2 levels because1) Effective pumping of CO2 into bundle sheath cells2) Rubisco in C4
plants has higher affinity for CO2
3) Four carbon acids are primary initial CO2 fixation products
4) The primary fixation of CO2 is mediated via PEP carboxylase
119. During the operation of non-cyclic photophosphorylation, the immediate source ofelectrons to P700 is1) Cyt f 2) PC 3) PQ 4) Fd
ROUGH
120. The following diagram represents ATP synthesis through chemiosmosis. Identify A, B,C, D parts labelled in it
Thylakoidmembrane
Stroma
ADP ATP
NADPH
NADP+
H+
Lumen
H2O
H+
H+
H+
H+
A CB
D
A B C D1) Photosystem –I Cytochrome b and f Photosystem –II ATP synthase2) Photosystem–II cytochrome b and f Photosystem –I CF0
3) Photosystem –II Cytochrome b and f Photosystem –I ATP synthase4) Photosystem –II ATP synthase Photosystem–I CFI
121. Assimilatory power used in bundlesheath cells of maize for the net production of oneglucose molecule is1) 30ATP, 12NADPH+H+ 2) 12ATP, 6NADPH+H+
3) 18ATP, 12NADPH+H+ 4) 30ATP, 18NADPH+H+
122. ATP produced in the mitochondria per one glucose molecule is (both substratephosphorylation and oxidation of all reduced coenzymes produced in cytoplasm andmatrix)1) 34 2) 32 3) 30 4) 24
ROUGH
123.
C
A
D
B
NADH+H +
NAD+
NA D +
NADH +
NADH+H+
NA D +
Glucose
CO 2+H 2OPyruvic acid
3 PGA
+CO 2
A, B, C, D in the above representation of respiration areA B C D
1) PGAL Lactic acid Ethanol Aerobic respiration2) 1,3 bis PGA Ethanol Lactic acid Krebs cycle3) G-3-P Ethanol Lactic acid Aerobic respiration4) F, 1,6 bis P Ethanol Lactic acid Aerobic respiration124. Bacteria with a tuft of flagella at one pole is known as
1) Lophotrichous 2) Monotrichous 3) Amphitrichous 4) Peritrichous125. Mendel found that the reciprocal crosses yielded identical results, from this he
concluded that1) These is no independent assortment of traits2) These is no dominance of any trait3) Gametes are always pure for a particular trait4) Sex has no influence on the dominance of traits
ROUGH
126. Mendel's principle of seggregation means germ cells always receive1) One pair of alleles 2) One quarter of the genes3) One of the paired alleles 4) Any pair of alleles
127. Select the correct statement from the ones given below with respect to dihybrid cross1) Tightly linked genes on the same chromosomes show higher recombinations2) Genes far apart on the same chromosome show very few recombinations3) Genes loosely linked on the same chromosome show similar recombinations4) Tightly linked genes on the same chromosome show very few recombinations
128. In the history of biology human genome project led to the development of1) Biotechnology 2) Biomonitoring 3) Bioinformatics 4) Biosystematics
129. The purpose of polymerase chain reaction is1) DNA modification 2) DNA amplification3) DNA replication 4) DNA visualisation
130. Match the codons with their respective aminoacids and choose correct answerColum –I Colum –IIA. UUU 1. SerineB. GGG 2. MethionineC. UCU 3. PhenylalanineD. CCC 4. GlycineE. AUG 5. Proline1) A-3, B-4, C-1, D-5, E-2 2) A-3, B-1, D-4, D-5, E-23) A-3, B-4, C-5, D-1, E-2 4) A-2, B-4, C-1, D-5, E-3
131. Mutations which alter nucleotide sequence with in a gene are1) Frame shift mutation 2) Base pair substitution3) Both a and b 4) None of these
132. Restriction endonucleases are enzymes which1) Make cut at specific positions within the DNA molecule2) Recognise a specific nucleotide sequence for binding of DNA ligase3) Restrict the action of the enzyme DNA polymerase4) Remove nucleotides from the ends of the DNA molecule
ROUGH
133. Which of the following is a wrong match for a microbe and its industrial product1) Yeast - statins 2) Acetobacter aceti - acetic acid3) Clostridium butylicum - lactic acid 4) Aspergillus niger - citric acid
134. Bacillus thuringiensis forms protein crystals which contain insecticidal protein. Thisprotein1) Is coded by several genes including the gene cry2) Does not kill the carrier bacterium which is itself resistant to the toxin3) Is activated by acidic pH in the foregut of insect pest4) Binds with epithelial cells of midgut in the insect pest ultimately killing it
135. Which of the following is a eukaryotic biofertilizer1) Nostoc 2) NPV 3) Rhizobium 4) Glomus
ROUGH
136. In the case of suspected filarial patients, blood samples are collected during nighttime because the1) patients do not feel much pain2) filarial worms enter into blood from lymph during night time3) microfilariae exhibit nocturnal periodicity4) adult worms are active in blood circulation during night time
137. The drug cocaine produces a sense of euphoria and increased energy levels as it1)acts as amphetamine 2)stimulates adrenal glands to produce steroids3)causes the inhibition of cholinergic nerves 4)interferes with the transport of dopamine
138. Which of the following is not a symptom of chronic malaria?1)Splenomegaly 2)Hypertrophy of RBC3)Cirrhosis of liver 4)Anaemia
139. In cockroach, the structures that help in locomotion on smooth surface are1)claws and arolium 2)pulvillus and bristles of podomeres3)plantulae on tarsus 4)plantulae, claws
140. Incorrect statement about the mushroom shaped gland of Periplaneta americana fromthe following1)Helps in storage and excretion of uric acid2)Secretes the innermost layer of spermatophore3)Stores the sperms in the form of spermatophores4)Nourishes the sperms
141. In a biological community Gauses principle explains1)competition among different species under unlimited resources2)competitive exclusion of an inferior species due to the limited natural resources3)coexistence of closely related species due to resource partitioning4)intra specific competition due to limited natural resources
142. In India, grassland ecosystems are found mainly in1)Ladakh region 2)Himalayan region3)Deccan plateau 4)Western ghats
ZOOLOGY
ROUGH
143. The influence of light on non-directional movement of animals is known as1)phototaxis 2)photoperiodism 3)photokinesis 4)phototropism
144. According to the study of molecular systematics, the kingdom replaced by the twokingdoms bacteria and archebacteria is1)Fungi 2)Protista 3)Monera 4)Metaphyta
145. Identify the correct match from the following1)Earth summit-Johannesburg, South Africa2)Biosphere reserves-Norman Myers3)Jim Corbett National park-first Indian national park in Gujarat4)Cryopreservation-ex-situ conservation
146. In humans mucous connective tissue is present mainly in the1)mucosa lining of gut 2)lining of alveoli of lungs3)umbilical chord of newly born infants4)walls of trachea, bronchi and bronchioles
147. Cardiac muscles are highly resistant to fatigue mainly due to the presence of1)intercalated discs 2)branched muscle fibres and communication junctions3)specialised autorhythmic muscle fibres4)numerous sarcosomes and myoglobin molecules
148. Identify the correct combination from the followingScientific name Respiratory organs Excretory organs1)Astacus Dermal branchiae Green glands2)Aplysia Ctenidia Meta nephridia3)Aphrodite Parapodia Protonephridia4)Ascidian Pharyngeal gill slits Proboscis gland
149. Echinoderm with elongated body and without arms,spines is1)Gorgonocephalus 2)Thyone 3)Clypeaster 4)Antedon
150. Incorrect statement about "great white shark" from the following1)Sharks exhibit physiological uraemia2)They have placoid scales and heteroceracal caudal fin3)Fertilization internal and viviparous in nature4)Lobe finned fishes with air bladder acting as hydrostatic organ
ROUGH
151. Identify the correct match from the following1)Gavialis-Vascular cloacal wall 2)Corvus-Urinary bladder present3)Cervus-Intra abdominal testes 4)Trichechus-Six cervical vertebrae
152. Identify the uricotelic animal from the following1)Land leech 2)Land snail 3)Desert fox 4)Camel
153. Incorrect match from the following1)Paneth cells-lysozyme 2)Schawnn cells-myelin sheath3)Dendritic cells-afferent neurons 4)Mast cells-inflammation
154. Which of the following is an exotic carp?1)Tunas 2)Common carp 3)Cat fish 4)Oil sardine
155. Follicular hyperkeratosis is a/an1)sex influenced trait 2)holandric character3)sexlinked dominant trait 4)autosomal recessive character
156. Amniocentesis test is developed mainly to1)confirm the pregnancy 2)determin the sex of the foetus3)detect the chromosomal abnormalities 4)findout the correct position of foetus
157. Which of the following disorder is not caused by trisomy(2n+1) in human beings?1)Down syndrome 2)Turner's syndrome3)Kline felter syndrome 4)Patau syndrome
158. In a family, blood groups of children are entirely different from that of parents only ifthe blood groups of the parents are1)A and B 2)AB and AB 3)AB and O 4)O and A or B
159. Correct match from the following1)Mutation theory-Bateson 2)Survival of the fittest-Herbert Spencer3)Principles of geology-Alfred Wallace 4)Biochemical recapitulation -Ernst Haeckel
160. The first human like being frugivorous in habit and hunted with sharp stony objectswas named1)Australopithecus 2)Homo neanderthalensis3)Homo habilis 4)Homo erectus
ROUGH
161. Incorrect match from the following1)MRI-aneurysm 2)EEG-epilepsy3)PSA test-cervical cancer 4)PCR-HIV detection
162. The technique of attenuating or weakening of a microbe was developed by1)Edward Jenner 2)Alexander Fleming 3)Louis Pasteur 4)Jonas Salk
163. Ampulla of vater is formed by the union of1)common hepatic duct and pancreatic duct 2)common bile duct and pancreatic duct3)cystic duct and common hepatic duct 4)infundibulum and isthmus of fallopian tube
164. Adenoids are present in1)nasopharynx 2)oropharynx3)below the tongue 4)laryngophrynx
165. In human development, most of the organ systems are developed by the end of1)first month 2)24 weeks 3)first trimester 4)8 weeks
166. The cells that provide nutrition to developing spermatozoa in testes are called1)Kupffer cells 2)Leydig cells 3)Sertoli cells 4)Oxyntic cells
167. Rima glottidis is the narrow space between the1)true vocal folds and false vocal cords 2)true vocal cords and arytenoids3)corniculate cartilages and cuneiform cartilages 4)arytenoids and thyroid cartilages
168. Pneumoconiosis is caused by the1)bacterium Streptococcus pneumoniae2)inhalation of coal dust and sulphur particles3)release of vasodilator substances due to allergens4)deposition of iron particles in alveoli of lungs
169. The specialised myocytes present in inner ventricular walls of heart beneathendocardium are called1)Chorde tendinae 2)Papillary muscles 3)Purkinje fibres 4)Columnae carneae
170. In human heart, the non functional valve in the right atrium is present at the openingof1)coronary sinus 2)superior venacava3)inferior venacava 4)right atrioventricular aperture
ROUGH
171. Which of the following hormones are not antagonistic to each other in their actions?1)Parathormone and calcitonin 2)Somatocrinin and somatostatin3)Cortisol and Catecholamines 4)Aldosterone and atrial natriuretic peptide
172. Prostaglandins are derivatives of1)tryptophan 2)tyrosine 3)glycoproteins 4)eicosanoids
173. The vestibular apparatus concerned with body equilibrium is constituted by1)saccule and utricle 2)ampullae and cristae3)maculae and vestibule 4)semicircular canals and otolith organ
174. Inter ventricular foramina are connecting the1)atria and ventricles in heart 2)paracoels and diocoel in brain3)3rd and 4th ventricles of brain 4)right and left ventricles of heart
175. Joint between two adjacent vertebrae of mammals is an example of1)symphysis and synarthrosis 2)synchondrosis and syndesmosis3)diarthrose and syndesmosis 4)symphysis and amphiarthrosis
176. Hensen's disc is1)part of primitive streak 2)part of sarcomere made of only myosin3)primitive knot through which chordamesodermal cells involute to form notochord4)bilaminar embryonic disc with epiblast and hypoblast
177. Autoimmune disease from the following1)Glomerulo nephritis 2)Osteo arthritis3)Rheumatoid arthritis 4)Meningitis
178. In the conduction of nerve impulse, relative refractory period coincides with the phaseof1)depolarisation 2)repolarisation 3)hyperpolarisation 4)polarisation
179. In kidneys, renal columns are made of1)renal calyces 2)medullary pyramids3)renal cortex 4)renal papillae
180. In the process of urine formation, selective reabsorption is minimum in this part ofnephron1)Proximal convoluted tubule 2)Distal convoluted tubule3)Henle's loop 4)Collecting duct
NEET PAPER – 2 KEY SHEET
PHYSICS
1) 2 2) 1 3) 2 4) 2 5) 3 6) 2 7) 4 8) 1 9) 1 10) 1
11) 1 12) 2 13) 1 14) 3 15) 1 16) 2 17) 1 18) 2 19) 2 20) 2
21) 1 22) 4 23) 3 24) 3 25) 2 26) 2 27) 2 28) 4 29) 1 30) 4
31) 1 32) 3 33) 3 34) 4 35) 2 36) 4 37) 3 38) 2 39) 1 40) 3
41) 4 42) 4 43) 3 44) 1 45) 2
CHEMISTRY
46) 1 47) 3 48) 4 49) 2 50) 3 51) 2 52) 4 53) 2 54) 4 55) 2
56) 3 57) 2 58) 4 59) 3 60) 2 61) 4 62) 2 63) 3 64) 3 65) 3
66) 2 67) 1 68) 1 69) 4 70) 4 71) 2 72) 3 73) 4 74) 3 75) 3
76) 1 77) 1 78) 1 79) 3 80) 3 81) 1 82) 1 83) 4 84) 2 85) 1
86) 3 87) 4 88) 3 89) 4 90) 4
BOTANY
91) 1 92) 3 93) 3 94) 4 95) 2 96) 4 97) 3 98) 4 99) 3 100) 4
101) 1 102) 4 103) 2 104) 4 105) 2 106) 4 107) 3 108) 1 109) 4 110) 2
111) 4 112) 2 113) 2 114) 2 115) 2 116) 1 117) 3 118) 4 119) 2 120) 3
121) 3 122) 1 123) 3 124) 1 125) 4 126) 3 127) 4 128) 3 129) 2 130) 1
131) 3 132) 1 133) 3 134) 4 135) 4
ZOOLOGY 136)
3 137) 4 138) 3 139) 3 140) 3 141) 2 142) 2 143) 3 144) 3 145) 4
146) 3 147) 4 148) 2 149) 2 150) 4 151) 4 152) 2 153) 3 154) 2 155) 3
156) 3 157) 2 158) 3 159) 2 160) 3 161) 3 162) 3 163) 2 164) 1 165) 3
166) 3 167) 2 168) 4 169) 3 170) 3 171) 3 172) 4 173) 4 174) 2 175) 4
176) 2 177) 3 178) 3 179) 3 180) 3