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1. An electric fan is placed on a stationary boatand air is blown with it on the sail of the boat.Which of the following statements is correct ?(a) The boat will be uniformly accelerated in the

direction of the flow of the air(b) The boat will start moving with uniform speed(c) The boat will be uniformly accelerated

opposite to the direction of flow of air(d) The boat will remain stationary as before

2. When the bob of a simple pendulum swings, thework done by tension in the string is(a) > 0 (b) < 0(c) zero (d) maximum

3. If p represents radiation pressure, c representsspeed of light and Q represents radiation energystriking a unit area per second then non-zerointegers x, y and z such that px Qy cz is dimensionless, are(a) x = 1, y = 1, z = – 1(b) x = 1, y = – 1, z = 1(c) x = – 1, y = 1, z = 1(d) x = 1, y = 1, z =1

4. The potential energy U between two atoms in adiatomic molecule as a function of the distancex between atoms has been shown in theadjoining figure. The atoms are

(a) attracted when x lies between A and B andare repelled when x lies between B and C

(b) attracted when x lies between B and C andare repelled when x lies between A and B

(c) attracted when they reach B(d) repelled when they reach B

5. For a particle executing simple harmonicmotion the kinetic energy K is given by, K = K0cos2 . The maximum value of potentialenergy is

(a) K0 (b) zero(c) K0/2 (d) not obtainable

6. The speed of sound in hydrogen at NTP is 1270ms–1. Then, the speed in a mixture of hydrogenand oxygen in the ratio 4 : 1 by volume will be(a) 317 ms–1 (b) 635 ms–1

(c) 830 ms–1 (d) 950 ms–1

7. A large number of water drops each of the radiusr combine to have a drop of radius R. If thesurface tension is T and the mechanicalequivalent of heat is J, then the rise intemperature will be

(a)2TrJ

(b)3TRJ

(c) (d)

8. A train of 150 m length is going towards northdirection at a speed of 10 ms–1 .A parrot flies ata speed of 5 ms–1 towards south directionparallel to the railway track. The time taken bythe parrot to cross the train is equal to(a) 12 s (b) 8 s (c) 15 s (d) 10 s

9. Two vessels A and B having equal volumecontain equal masses of hydrogen in A andhelium in B at 300 K. Then, mark the correctstatement.(a) The pressure exerted by hydrogen is half that

exerted by helium(b) The pressure exerted by hydrogen is qual to

that exerted by helium(c) Average KE of the molecule of hydrogen is

half the average KE of the molecules ofhelium

(d) The pressure exerted by hydrogen is twicethat exerted by helium

10. A charge Q is uniformly distributed over a largesquare plate of copper. The electric field at apoint very close to the centre of the plate is 10Vm–1 . If the copper plate is replaced by a plasticplate of the same geometrical dimensions andcarrying the same charge Q uniformlydistributed, then the electric field at the pointP will be(a) 5 Vm–1 (b) zero(c) 10 Vm–1 (d) 20 Vm–1

11. A piece of wire of resistance R is cut into n equalparts. These parts are then connected in

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Mock Test-9 SAMPLE PAPER for NEET(UG)-2020parallel. If the equivalent resistance of theparallel combination is R' then (R/R') is(a) 1/1 (b) n/1(c) n2/1 (d) 1/n

12. Ice starts freezing in a lake with water at 0ºCwhen the atmospheric temperature is– 10ºC . If the time taken for 1 cm of ice to beformed is 12 min the time taken for thethickness of the ice to change from 1 cm to 2cm will be(a) 12 min (b) less than 12 min(c) more than 12 min but less than 24 min(d) more than 24 min

13. An ideal gas is taken through a cyclicthermodynamical process through four steps.The amounts of heat involved in these stepsare Q1 = 5960 J, Q2 = – 5585 J, Q3 = – 2980 J, Q4= 3645 J, respectively. The corresponding worksinvolved are W1 = 2200 J, W2 = – 825 J, W3 = –1100 J and W4 respectively. The value of W4 is(a) 1315 J (b) 275 J(c) 765 J (d) 675 J

14. A beam of light consisting of red, green and bluecolours is incident on a right-angled prism. Therefractive indices of the material of the prismfor the above red, green and blue wavelengthsare 1.39, 1.44 and 1.47 respectively. The prismwill(a) separate part of the red colour from the green

and blue colours(b) separate part of the blue colour from the red

and green colours(c) separate all the three colours from one another(d) not separate even partially any colour from

the other two colours15. The kinetic energy K of a particle moving along

a circle of radius R depends on the distancecovered s as K = as2, where a is a constant. Theforce acting on the particle is

(a)2s

2aR

(b)

(c) 2as (d)2R

2as

16. A car is moving in a circular horizontal track ofradius 10 m with a constant speed of 10 ms–1. Aplumb bob is suspended from the roof of the carby a light rigid rod of length 1.00 m. The anglemade by the rod with track is(a) zero (b) 30º(c) 45º (d) 60º

17. ECE of copper is 3.3 × 10–7 kgC–1. If 100 kWhenergy is consumed at 33 V in a coppervoltameter, then mass of copper liberated is

(a) 3.6 kg (b) 3.3 kg(c) 1 kg (d) 1 mg

18. A ray of light is incident on the surface ofseparation of a medium with the velocity of lightat an angle 45º and is refracted in the mediumat an angle 30º. What will be the velocity of thelight in the medium ?(a) 1.96 × 108 ms–1 (b) 2.12 × 108 ms–1

(c) 3.18 × 108 ms–1 (d) 3.33 × 108 ms–1

19. Two identical wires A and B have the samelength L and carry the same current I. Wire Ais bent into a circle of radius R and wire B isbent to form a square of side a. If B1 and B2 arethe values of magnetic induction at the centreof the circle and the centre of the squarerespectively, then the ratio B1/B2 is(a) (b)

(c) (d)20. In non-resonant circuit, what will be the nature

of the circuit for frequencies higher than theresonant frequency ?(a) Resistive (b) Capacitive(c) Inductive (d) None of these

21. A particle of mass m is moving in a circularpath of constant radius r such that centripetalacceleration ac varying with time is ac = k2 rt2

where k is a constant. What is the powerdelivered to the particle by the force acting onit ?(a) 2mkr2t (b) mkr2t(c) mk2r2t (d) mk2rt2

22. The maximum height attained by a projectileis increased by 5%. Keeping the angle ofprojection constant, what is the percentageincrease in horizontal range ?(a) 5% (b) 10%(c) 15% (d) 20%

23. Neton's Laws are not valid in(a) Stationary frame(b) Rotational frame(c) Uniformly moving frame(d) None of these

24. White light may be considered to be a mixtureof wave with ranging between 3000 Å and7800 Å. An oil film of thickness 10.000 Å isexamined normally by the reflected light. Ifµ = 1.4, then the film appears bright for(a) 4308 Å, 5091 Å, 6222 Å(b) 4000 Å, 5091 Å, 5600 Å(c) 4667 Å, 6222 Å, 7000 Å(d) 4000 Å, 4667 Å, 5600 Å, 7000 Å

25. To get the maximum flight a ball must bethrown as

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Mock Test-9 SAMPLE PAPER for NEET(UG)-2020

(a) (b)

(c)

(d) Any of (a), (b) and (c)26. Rain is falling vertically downwards with a

velocity of 4 kmh–1. A man walks in the rainwith a velocity of 3 kmh–1. The raindrops willfall on the man with a velocity of(a) 1 kmh–1 (b) 3 kmh–1

(c) 4 kmh–1 (d) 5 kmh–1

27. A machine gun is mounted on a 200 kg vehicleon a horizontal smooth road (friction negligible).The gun fires 10 bullets per sec with a velocityof 500 ms–1. If the mass of each bullet be 10 g,what is the acceleration produced in the vehicle?(a) 25 cms–2 (b) 35 cms–2

(c) 50 cms–2 (d) 50 ms–2

28. The displacement of a particle executingperiodic motion is given byy = 4 cos2 (t/2) sin (1000t)This expression may be considered to be a resultof superposition of(a) two waves (b) three waves(c) four waves (d) five waves

29. If the series limit wavelength of the Lymanseries for hydrogen atom is 912 Å, then theseries limit wavelength for the Blamer seriesfor the hydrogen atoms is(a) 912 Å (b) 912 × 2 Å(c) 912 × 4 Å (d) 912/2 Å

30. Assuming that about 20 MeV of energy isreleased per fusion reaction

then the mass of 1H2

consumed per day in a fusion reactor of power 1MW will approximately be(a) 0.001 g (b) 0.1 g(c) 10.0 g (d) 1000 g

31. A pure semiconductor behaves slightly as aconductor at(a) room temperature (b) low temperature(c) high temperature (d) both (b) and (c)

32. A coil has an inductance of 0.7 H and is joinedin series with a resistance of 220 . When analternating emf of 220 V at 50 cps is applied toit, then the wattles component of the currentin the circuit is(a) 5 A (b) 0.5 A(c) 0.7 A (d) 7 A

33. Which of the following statements is/are true ?(a) A clock when taken on a mountain can be

made to give correct time if we change the

length of pendulum suitably(b) An increase in value of g makes a clock go

slow(c) If the length of a pendulum is increase, the

clock becomes fast(d) A clock when taken to a deep mine or carried

to the top of a mountain becomes slow34. Electric potential is given by

V = 6x – 8xy2 – 8y + 6yz – 4z2. Then electric forceacting on 2C point charge placed on origin willbe(a) 2 N (b) 6 N(c) 8 N (d) 20 N

35. There is a current of 40 A in a wire of 10–6 m2

area of cross-section. If the number of freeelectrons per cubic meter is 1029 then the driftvelocity is(a) 250 × 10–3 ms–1 (b) 25.0 × 10–3 ms–1

(c) 2.50 × 10–3 ms–1 (d) 1.25 × 103 ms–1

36. A mixture of n1 moles of monoatomic gas and

n2 moles of diatomic gas has P

V

CC Then

(a) n1 = n2 (b) 2n1 = n2(c) n1 = 2n2 (d) 2n1 = 3n2

37. Change in frequency due to Doppler's effect isproduced when(a) the source and the observer are moving in

the same direction(b) the source and the observer are both at rest(c) there is relative motion between the source

and the observer(d) there is a resultant motion between the

source and observer38. A dip needle arranged to move freely in the

magnetic meridian dips by an angle . If thevertical plane in which the needle moves isrotated through an angle to the magneticmeridian, then the needle will dip by an angle(a) (b)(c) more than (d) less than

39. The coming rays are forming rainbows

(a) Figure (1) forms primary rainbow(b) Figure (1) and (3) form primary rainbow(c) Figure (2) forms secondary rainbow

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Mock Test-9 SAMPLE PAPER for NEET(UG)-2020(d) Figure (1) forms secondary rainbow

40. A table tennis ball which has been covered witha conducting paint is suspended by a silk threadso that it hangs between two metal plates. Oneplate is earthed. When the other plate isconnected to a high voltage generator, the ball(a) is attracted to the high voltage plate and

stays there(b) hangs without moving(c) swings backward and forward hitting each

plate in turn(d) is repelled to the earthed plate and stays

there41. In a step-up transformer, the turn ratio is

1 : 2 A Lechlanche call (emf = 1.5 V) is connectedacross the primary. The voltage developed inthe secondary would be(a) 3.0 V (b) 0.75 V(c) 1.5 V (d) zero

42. If the total magnetic field due to earth is 28Am–1 then the total magnetic induction due toearth is(a) 28 T (b) 280 ab-ampcm–1

(c) 0.352 gauss (d) 0.352 T43. Two streams of protons move parallel to each

other in the same direction. Then, these(a) do not interact at all(b) attract each other(c) repel each other(d) get rotated to be perpendicular to each other

44. The ratio of the speed of an object to the speedof its real image of magnification m of a convexmirror is(a) – 1/m2 (b) m2

(c) – m (d) 1/m45. The maximum current that flows in the fuse

wire, before it blows out, varies with the radiusr as(a) r3/2 (b) r(c) r2/3 (d) r1/2

46. When ethylene glycol is distilled with conc.H2SO4, the product obtained is :(a) epoxyethane (b) dioxane(c) acetaldehyde (d) diethylene glycol

47. Phenyl magnesium bromide reacts withmethanol to give :(a) a mixture of anisole and Mg(OH)Br(b) a mixture of benzene and Mg(OMe)Br(c) a mixture of toluene and Mg(OH)Br(d) a mixture of phenol and Mg(Me)Br.

48. Ethanol on dehydration with conc. H2SO4 at 413K yields :(a) CH2 = CH2

(b)3CH CHO

(c) CH3 – CH2 – O – CH2CH3(d) C2H5HSO4.

49. The number of metameric ethers which canbe written with the formula C4H10O is :(a) 1 (b) 2(c) 3 (d) 4

50. When the vapour of ethyl alcohol are passed overalumina at 525K, the product obtained is :(a) CH2 = CH2 (b) C2H5 – O –C2H5(c) CH3– O – CH3 (d) none of these.

51. When acetone is reduced with magnesiumamalgam and water, the product obtained is a(a) primary alcohol (b) secondary alcohol(c) pinacol (d) hydrocarbon.

52. On vigorous oxidation by permanganatesolution

(a) 3 22CH COandOHCCH CHO

(b)OHOH

(c) 3 22CH COandOHCCH COOH

(d) 3 2 22CH COandCH COOH

53. Which of the following is the weakest acid ?(a) HCOOH (b) CH3COOH

(c) CH3CH2COOH (d)

54. A liquid (X) having a molecular formula C6H12O2is hydrolysed with water in the presence of anacid to give a carboxylic acid (Y) and an alcohol(Z). Oxidation of (Z) with chromic acid gives (Y).The liquid (X) is :(a) CH3CH2CH2COOCH2CH3(b) CH3CH2COOCH2CH2CH3(c) CH3COOCH2CH2CH2CH3(d) CH3CH2CH2CH2 COOCH3.

55. The relative strength of benzoic acid (I) o-hydroxy benzoic acid (II), m-hydroxy benzoic acid(III), and p-hydroxy benzoic acid (IV) follows theorder :(a) I > II > III > IV (b) IV > III > II > I(c) II > III > IV > I (d) II > III > I > IV

56. In the chemical reaction,

(A) + (B) + 3H2O, the compounds (A) and (B) arerespectively :(a) C2H5 CN and 3KCl(b) CH3CH2 CONH2 and 3KCl(c) C2H5 NC and K2CO3

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Mock Test-9 SAMPLE PAPER for NEET(UG)-2020(d) C2H5NC and 3KCl

57. Which of the following statements is notcorrect ?(a) In elastomers, the polymeric chains are

held together by the weakest intermole-cularforces.

(b) Polyacrylonitriles belong to the category offibres.

(c) Thermoplastics possess intermolecularforces intermediary to those of elastomersand fibres.

(d) the thermosetting polymers can bereprocessed several times.

58. Consider the following two reactions occurringin a cell :i. A B; G1 > 0 (ii) S P ; G2 < 0The two reactions get coupled in the cell. Thecoupled reaction will be feasible when G1 + G2is :(a) positive (b) large negative(c) zero (d) highly positive.

59. If v, x and m represents the wavelength ofvisible light, X-ray and microwave respectively,then :(a) m > v > x (b) m > x > v(c) v > m > c (d) v > x > m

60. V1 mL of NaOH of normality X and V2 mL ofBa(OH)2 of normality Y are mixed together. Themixture is completely neutralised by 100 mL of

0.1N HCl. If V1/V2 = 14 and

X 4,Y what fraction

of the acid is neutralised by Ba(OH)2 :(a) 0.5 (b) 0.25(c) 0.33 (d) 0.67

61. The IUPAC name of the compound is

(a) 1,3,5-triheptene(b) 2,4,6-triheptene(c) 2,4,6-heptatriene(d) hepta-1,3,5-triene

62. What would be the product formed when 1-bromo-3-chlorocyclobutane reacts with twoequivalents of metallic sodium in ether ?

(a) (b)

(c) (d)

63. The behavior of a real gas is usually depictedby plotting compressibility factor Z versus P ata constant temperature. At high temperatureand high pressure, z is usually more than onethis fact can be explained by van der Waals'

equation when(a) The constant a is negligible and not b(b) The constant b is negligible and not a(c) both the constants a and b are negligible(d) Both the constants a and b are not

64. A solution contains non volatile solute ofmolecular mass M2. Which of the following canbe used to calculate the molecular mass ofsolute in terms of osmotic pressure ?

(a) (b) 2M

(c) (d) 2M

65. Osmotic pressure of blood is 7.65 atm at 310 K.An aqueous solution of glucose that will beisotonic with blood is ... wt./vol.(a) 5.41 % (b) 3.54%(c) 4.53% (d) 53.4%

66. Equal volumes of 1M KMnO4 and 1M K2Cr2O7solution are allowed to oxidise Fe2+ ions to Fe3+

ions in acidic medium. The number of moles ofFe2+ ions oxidised in the two cases are in theratio(a) 1 : 1 (b) 3 : 1(c) 5 : 6 (d) 6 : 5

67. The equilibrium constant for equilibria,

2 2 3

3 2 2

1SO (g) O (g) SO (g)and2

2SO (g) 2SO (g) O (g)

are K1 and K2 respectively. Then :(a) K2 = K1 (b) 2

2 1K K

(c) K2 = 1/K2 (d) 22 1K 1/K

68. The equilibrium PCl5(g) PCl3(g) + Cl2(g)shows that Kp is 24.63 items the value of Kc ata particular temperature T. Then T (in K) is :(a) 200 (b) 100 (c) 300 (d) 400

69. The range of pH in which methyl orange worksas indicator :(a) 4 – 4 (b) 10 – 12(c) 8 – 10 (d) 6 – 8

70. The counting rate observed from a radioactivesource at t = 0 second was 1600 counts/sec andat t = 8 sec it was 100 counts/sec. The countingrate observed as count per sec at t = 6 sec willbe :(a) 400 (b) 300(c) 200 (d) 150

71. Which is correct relation in betweendc dn dP, anddt dt dt

where c, n, and P, represents

concentration, mole and pressure terms for

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Mock Test-9 SAMPLE PAPER for NEET(UG)-2020gaseous phase reactant A (g) product ?

(a)

(c)

(d) (d) All of the above

72. Identify the correct statement for change ofGibb's energy for a system (Gsystem) at constanttemperature and pressure :(a) if Gsystem = 0, the system is still moving in

a particular direction(b) i f Gsystem = –ve, the process is not

spontaneous(c) if Gsystem = +ve, the process is spontaneous(d) if Gsystem = 0, the system has attained

equilibrium73. The 0E values for Cr, Mn, Fe and Co are –

0.41, +1.57, +0.77 and +1.97 V respectively. Forwhich one of these metals the change inoxidation state from +2 to +3 is easiest :(a) Co (b) Mn(c) Fe (d) Cr

74. The rusting of iron takes place as follows :

The G0 for the net process is :(a) –322 kJ mol–1 (b) –161 kJ mol–1

(c) –152 kJ mol–1 (d) –76 kJ mol–1

75. A hydrogen electrode placed in a buffer solutionof CH3COONa and acetic acid in the ratio's x : yand y : x has electrode potential values E1 voltsand E2 volts respectively at 250C. The pKa valueof acetic acid is (E1 and E2 are oxidationpotential)

(a) 0.118 (b) 0.118

(c) (d) 0.11876. On addition of one mL of 10% NaCl to 10 mL

gold sol in the presence of 0.0250 g of starch,the coagulatin is just prevented. Starch has thegold number :(a) 0.025 (b) 0.25(c) 2.5 (d) 25

77. As the temperature is raised from 200C to 400C,the average kinetic energy of neon atomschanges by a factor :

(a) 2 (b)313293

(c)313293 (d)

12

78. Total volume of atoms present in a face centredcubic unit cell of a metal is (r is atomic radius)

(a)203

(b)243

(c)123

(d)163

79. Given : The mass of electron is 9.11 × 10–31 kgPlanck constant is 6.626 × 10–34 Js, theuncertainty involved in the measurement ofvelocity within a distance of 0.1 Å is :(a) 5.79 × 108 ms–1 (b) 5.79 × 105 ms–1

(c) 5.79 × 106 ms–1 (d) 5.79 × 107 ms–1

80. The correct order of electronegativity regardingthe hybrid orbitals of carbon is :(a) sp < sp2 < sp3 (b) sp < sp2 > sp3

(c) sp > sp2 < sp3 (d) sp > sp2 > sp3

91. If 1021 molecules are removed from 200 mg ofCO2, the number of moles of CO2 left are :(a) 2.88 × 10–3 (b) 28.8 × 10–3

(c) 0.288 × 10–3 (d) 1.66 × 10–2

82. Which of the following molecular species hasunpaired electron (s) ?(a) N2 (b) F2

(c) 2O (d) 22O

83. How much will the reduction potential of ahydrogen electrode change when its solutioninitially pH = 0 is neutralised to pH = 7 :(a) Increase by 0.059 V(b) Decrease by 0.058 V(c) Increase by 0.41 V(d) Decrease by 0.41 V

84. Finely divided iron combines with CO to give.(a) Fe(CO)5 (b) Fe2(CO)6(c) Fe(CO)12 (d) Fe2(CO)9

85. One mole of the complex compound Co(NH3)5Cl3,gives 3 moles of ions on dissolution in water.One mole of the same complex reacts with twomoles of AgNO3 solution to yield two moles ofAgCl(s). The structure of the complex is :(a) [Co(NH3)3Cl3].2NH3(b) [Co(NH3)4Cl2]Cl.NH3(c) [Co(NH3)4Cl]Cl2.NH3(d) [Co(NH3)5Cl]Cl2

86. in the abovereaction X is :(a) CrO3 (b) Cr2O7(c) Cr2O3 (d) CrO5

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Mock Test-9 SAMPLE PAPER for NEET(UG)-202087. Which of the following processes involve

smelting(a)(b)(c)

(d)88. The correct order of bond angles (smallest first)

in H2S, NH3, BF3 and SiH4 is :(a) H2S < SiH4 < NH3 < BF3(b) NH3 < H2S < SiH4 < BF3(c) H2S < NH3 < SiH4 < BF3(d) H2S < NH3 < BF3 < SiH4.

89. Which compound does act as an oxidising aswell as a reducing agent ?(a) SO2 (b) MnO2(c) Al2O3 (d) CrO3

90. Identify the incorrect statement among thefollowing :(a) Ozone reacts with SO2 to give SO3(b) Silicon reacts with NaOH(aq) in the presence

of air to give Na2SIO3 and H2O(c) Cl2 reacts with excess of NH3 to give N2 and

HCl(d) Br2 reacts with hot and strong NaOH

solution to give NaBr, NaBrO4 and H2O.91. A taxon with reference to classification of

living organisms can be defined as(a) A group of similar species(b) A group of organisms based on chromosome

numbers(c) A group of any one rank of organisms(d) A group of similar genera

92. Artificial system classifies plants on thebasis of(a) Phylogenetic trends(b) One or two characters (a few characters)(c) As many as possible characters(d) None of the above

93. Out of four widely known systems ofclassification one remains less phylogeneticand more natural. That is of(a) Bentham and Hooker(b) Hutchinson(c) Engler and Prantl(d) Tippo

94. Algae and other submerged plants often floatin water during day time and sink at nightbecause(a) They become light due to consumption of

food(b) They become buoyant due to

accumulation of oxygen as a result ofphotosynthesis

(c) They come up to enjoy sunshine(d) They loose weight at night because fish and

other animals eat away their parts95. How many chromosomes Funaria primary

protonema will have if its leaf has 5chromosomes ?(a) 5 chromosomes (b) 10 chromosomes(c) 15 chromosomes (d) 20 chromosomes

96. The rachis of ferns are covered by(a) Ramenta (b) Scales(c) Hairs (d) None of the above

97. 'Flavr Savr' is the genetically engineered(a) Potato (b) Tomato(c) Brinjal (d) Rose

98. Variety of Rose produced by geneticengineering is(a) Red Rose (b) White Rose(c) Green Rose (d) Blue Rose

99. Cauliflory is(a) Formation of flowers in clusters(b) Production of flowers on young branches(c) Production of flowers on old stem from new

buds(d) Formation of plants from epiphyllous buds

100. Cyathium inflorescence shows(a) Similar type of flower(b) One central male flower surrounded by few

female flowers(c) One central female flower surrounded by

many male flowers(d) Sessile flower on long axis

101. Grafting is not possible in monocots becausethey(a) Have scattered vascular bundles(b) Have parallel venation(c) Are herbaceous(d) Lack cambium

102. Which of the following living cells is nottotipotent ?(a) Pollen grain (b) Sieve cell(c) Epidermal cell (d) Pith cell

103. When a plant wilts, what will be the sequenceof events ?(a) Endosmosis, plasmolysis, temporary and

permanent wilting(b) Exosmosis, plasmolysis, temporary and

permanent wilting(c) Exosmosis, deplasmolysis, plasmolysis,

temporary and permenent wilting(d) Exosmosis, plasmolysis, deplasmolysis,

temporary and permanent wilting104. If cell A with OP = 5 and TP = 4 is surrounded

by the cells with OP = 3 and TP = 1 what will bedirection of water movement ?

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Mock Test-9 SAMPLE PAPER for NEET(UG)-2020(a) Water will not move up(b) Water will move up(c) From cell A to other cells(d) From other cells to cell A

105. How does the removal of a ring of bark and woodfrom the trunk of a tree kills it ?(a) Mineral salts can not go up(b) Immediate stoppage of photosynthesis(c) Water can not go up(d) The exposed part dies due to heat

106. The absence of oxygen affects(a) Active transport (b) Osmosis(c) Diffusion (d) All of the above

107. Which is not an essential macro-element forplant growth ?(a) Zinc (b) Calcium(c) Potassium (d) Nitrogen

108. Which one of the following bacteria maintainsthe nitrogen economy of the soil ?(a) Escherichia coli(b) Rhizobium leguminosarum(c) Bacillus panctotrophus(d) Bacillus denitrificans

109. Fixation of one CO2 molecule through Calvincycle requires(a) 3 ATP and 3 NADPH2(b) 2 ATP and 1 NADPH2(c) 1 ATP and 2 NADPH2(d) 3 ATP and 2 NADPH2

110. Which pigment system is inactivated in reddrop ?(a) PS-I and PS-II (b) PS-I(c) PS-II (d) None of these

111. Path of carbon in photosynthesis was found byusing(a) Centrifugation (b) Radio isotopes(c) Fractionation (d) Chromatography

112. Pasteur effect is concerned with the shiftingof environmental conditions from(a) Light to dark(b) Aerobic to anaerobic(c) Anaerobic to aerobic(d) Light to anaerobic

113. Which of the following statement is wrong forKreb's cycle ?(a) Acetyl Co-A and OAA react to form citrate(b) The cycle reforms OAA(c) The cycle operates in stroma(d) The cycle does not operate in absence of O2

114. Which compound mediates the flow of electronsfrom FADH2 to cytochromes ?(a) CoA (b) Plastoquinone(c) Ubiquinone (d) NADP

115. In Kigellia pinnata/susage tree, pollination is

performed by(a) Bats (b) Insects(c) Birds (d) Wind

116. In angiosperms a mature male gametophyteis derived from a pollen mother cell by(a) Three mitotic divisions(b) One meiotic and two mitotic divisions(c) Two meiotic divisions(d) A single meiotic division

117. Development of sporophyte without fertilizationfrom the vegetative cells of the gametophyteis called(a) Zygospory (b) Aplanospory(c) Apospory (d) Apogamy

118. Which of the following is not naturallyoccurring plant hormone ?(a) IAA (b) GA2(c) 2, 4-D (d) Gibberellin

119. A pigment concerned with both floral inductionand seed germination is(a) Florigen (b) Chlorophyll(c) Plastocyanin (d) Phytochrome

120. Which of the following plant has a non-succulent, xerophytic and thick leatheryleaves with white sticky waxy coating ?(a) Nerium (b) Calotropis(c) Bryophllum (d) Ruscus

121. Autecology refers to(a) Plant ecology(b) Animal ecology(c) Ecological study of individual species(d) Ecological study of group of species, which

is grown together122. B.O.D. is connected with

(a) Organic matter (b) Microbes(c) Both (a) and (b) (d) None of the above

123. In submerged hydrophyte functional stomataare found(a) On lower surface of leaf(b) On upper surface of leaf(c) On both the surfaces of leaf(d) No where on the plant

124. Competition for food, light and space is mostsevere between two(a) Distantly related species growing in

different habitat(b) Distantly related species growing in the

same habitat(c) Closely related species growing in different

habitat(d) Closely related species growing in the same

area125. Lichens and mosses are observed in

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Mock Test-9 SAMPLE PAPER for NEET(UG)-2020(a) Hydrach (b) Psammosere(c) Xerosere (d) Hydrosere

126. Ecosystem is composed of(a) Bacteria and biotic components(b) Consumer and bacteria(c) Producer, consumer and bacteria(d) Various forms of life, supporting

environment127. The food chain, in which micro-organisms

absorb and break down the energy richcompound synthesized by the producers, is(a) Parasitic food chain(b) Detritus food chain(c) Predator food chain(d) None of the above

128. Biotic potential refers to(a) Increase of population under optimum

conditions(b) Increase of population under given

conditions(c) Increase of population under natural

conditions(d) Increase of population under climatic

conditions129. Susceptibility of extinction is due to

(a) Large body size (b) Small population(c) High trophic level (d) All the above

130. Alpha diversity is biodiversity present(a) Within community(b) Between community(c) Ranges of communities(d) All the above

131. The effect of today's radioactive fallout willprobably be more harmful to children of futuregenerations than to children now livingbecause(a) Contamination of milk supply(b) Infants are more susceptible to radiation(c) Susceptibility to radiation increases with

age(d) Mutated genes are frequently recessive

132. Match the names of antibiotics listed underColumn I with their source given underColumn II.

Column I Column II (Antibiotics) (Source)A. Neomycin p. Streptomyces fradiaeB. Terramycin q. Penicillium notatumC. Viridin r. Streptomyces rimosusD. Penicillin s. Gliocladium virens(a) A-r, B-p, C-s, D-q(b) A-p, B-r, C-s, D-q

(c) A-r, B-s, C-p, D-q(d) A-s, B-p, C-r, D-q

133. Match the names of plants given under ColumnI with the families to which they belong givenunder Column II

Column I Column II (Plant name) (Family name)A. Tamarindus indica p. ArecaceaeB. Cocos nucifera q. LiliaceaeC. Colchicum autumnale r. SolanaceaeD. Withania somnifera s. Apocynaceae

t. Papilionaceae(a) A-t, B-p, C-r, D-q (b) A-t, B-p, C-q, D-r(c) A-s, B-t, C-p, D-q (d) A-t, B-q, C-p, D-r

134. Match the biochemical processes given undercolumn I with their respective cellularlocations given under column II.

Column I Column IIA. Krebs cycle p. stromaB. Glycolysis q. granaC. Calvin cycle r. mitochondrial

matrixs. cytoplasm

(a) A-p, B-r, C-q (b) A-r, B-s, C-p(c) A-r, B-p, C-q (d) A-s, B-r, C-p

135. In high yielding 'hybrid crop varieties', toexploit hybrid vigour, the farmers need topurchase fresh hybrid seed every year, because(a) They are not allowed to grow their own seed(b) The hybrid vigour is lost due to inbreeding

depression(c) The Government of India has accepted

Dunkel's proposals(d) It is cheaper to purchase fresh seed

136. Nitrify ing bacteria, Nitrosomonas andNitrobactor(a) Convert (oxidise) ammonia or ammonium

compounds into nitrates(b) Convert nitrate into nitrogen(c) Convert nitrogen into nitrates(d) Convert carbon dioxide into

carbohydrates137. For retting of jute the fermenting microbe used

is(a) Methophilic(b) Butyric acid bacteria(c) Helicobactor pylori(d) Streptococcus lactin

138. All of the following statements concerning theactinomycetous filamentous soil bacteriumFrankia are correct except that Frankia

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Mock Test-9 SAMPLE PAPER for NEET(UG)-2020(a) Can induce root nodules on many plant

species(b) Cannot fix nitrogen in the free-living state(c) Cannot fix specialized vesicles in which

the nitrogenase is protected from oxygenby a chemical barrier involving triterpenehapanoids

(d) Like Rhizobium, it usually infects its hostplant through root hair deformation andstimulates cell proliferation in the host'scortex

139. Prokaryotes are characterized by(a) A true nucleus with double layered

nuclear membrane is absent(b) Well developed nucleus with double

layered nuclear membrane present(c) Presence of cell wall made of chitins,

mucopolysaccharides and absence of cellorganel les like mitochondria andchloroplasts

(d) Autotrophic in nature and only DNA ispresent

140. Heterocysts are found in certain(a) Viruses (b) Bacteria(c) Cyanobacteria (d) Mycoplasmas

141. Blue-green algae are included in(a) Eukaryotes (b) Rhodophyceae(c) Prokaryotes (d) Chlorophyceae

142. Heterocyst constitutes a(a) Weakest link in trichome(b) Strongest link in trichome(c) In some trichomes it is a strong link(d) It is not linked at all

143. Red sea phenomena due to(a) Red algae (b) Dinophyceae(c) Diatoms(d) Blue-green algae (Trichodesmium

erythrium)144. Murein is not found in the cell wall of

(a) Nostoc (b) Eubacteria(c) Cyanobacteria (d) Diatoms

145. Auxospores and hormocysts are formedrespectively by(a) Some cyanobacteria and many diatoms(b) Several cyanobacteria and several

diatoms(c) Some diatoms and several cyanobacteria(d) Several diatoms and a few cyanobacteria

146. Which protozoan is unlikely to have acontractile vacuole(a) Euglena (b) Paramecium(c) Amoeba (d) Plasmodium

147. Malignant tertian malaria is due to

(a) Plasmodium falciparum(b) P. vivax(c) P. ovale (d) P. malariae

148. Infective stage of Trypanosoma gambiense is(a) Metacyclic (b) Crithidial(c) Leptomonas (d) Leishmania

149. Two species of Amoeba X and Y were kept infresh water and got adapted. Species Xdeveloped contractile vacuole. When both weretransferred to sea water and got adapted, bothX and Y lost their contractile vacuole. Fromthese observation we conclude that(a) Both X and Y are marine species(b) Species Y is marine and X is fresh water(c) Species X is marine and Y is fresh water(d) Both X and Y are fresh water

150. What is characteristic of deuterostomes(a) Spiral cleavage, blastopore becoming

mouth(b) Radial cleavage, blastopore becoming

anus(c) Spiral cleavage, blastopore becoming

anus(d) Radial cleavage, blastopore becoming

mouth151. Enterocoelous coelom is found in

(a) Deuterostomia (b) Astomia(c) Protostomia (d) Blastostomia

152. Parasites capable of living without a host arecalled(a) Facultative (b) Permanent(c) Obligate (d) None of these

153. Spermathecal pores of Pheretima are presentin(a) 5/6, 6/7 7/8 and 8/9(b) 6/7, 7/8. 8/9 and 9/10(c) 1/2, 2/3, 3/4 and 4/5(d) 14/15, 15/16, 16/17 and 17/18

154. Blood of earthworm is(a) Red in colour due to dissolved haemoglobin

in corpuscles(b) Red in colour due to dissolved haemoglobin

in plasma(c) Blue in colour due to dissolved haemoglobin

in plasma(d) Blue in colour due to dissolved haemoglobin

in corpuscles155. Cephalothorax is found in the

(a) Arthropoda (b) Annelida(c) Nematoda (d) Echinodermata

156. A larval stage occurs in the life history of allmembers of the group(a) Frog, Lizard and Cockroach

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Mock Test-9 SAMPLE PAPER for NEET(UG)-2020(b) Ascaris, Housefly and Frog(c) Housefly, Earthworm and Mosquito(d) Butterfly, frog and Mosquito

157. Temperature changes in the environmentaffect most of the animals which are(a) Aquatic (b) Desert living(c) Poikilothermic (d) Homoiothermic

158. Which one of the following is exotic Indian fish(a) Clarias (b) Labeo(c) Cypris (d) Dephnia

159. 'Chicken pox' is caused by(a) Adeno virus(b) Varicella virus(c) SV-40 virus(d) Bacteriophage T-2

160. Pulse-Polio programme is organised in ourcountry(a) To cure polio (b) To eradicate polio(c) To spread polio (d) None of these

161. 'ELISA' test is done for the diagnosis of(a) Anthrax (b) HIV(c) Hepatitis (d) Malaria

162. Humoral immunity is due to(a) B-lymphocytes (b) T-lymphocytes(c) L-Lymphocytes (d) P- Lymphocytes

163. The term "antibiotic" was coined by(a) Alexander fleming(b) Edward Jenner(c) Louis pasteur(d) Selman waksman

164. In an experiment freshly hatched larvae of aninsect (Khapra beetle) were reared on a basaldiet without increasing amounts of cholesterol.Results obtained are shown in the graph givenin the table

0 1 2 3 4 5 6

2

1

0

g cholesterol/g basal diet

(a) Cholesterol is an essential dietaryrequirement of khapra beetle

(b) Growth of khapra beetle is directlyproportional to cholesterol concentration.

(c) Cholesterol concentration of 2 µg/g

diet is the optimum level(d) Growth of khapra beetle is inhibited

when cholesterol concentration exceeds 5µgg diet.

165. Based on cellular mechanisms there are twomajor types of regeneration found in theanimals. which one of the following is thecorrect example of the type mentioned(a) Morphallaxis - Regeneration of two

transversely cut equal pieces of a Hydrainto two small Hydras

(b) Epimorphosis - Regeneration of old and dead erythrocytes by the new ones.

(c) Morphallaxis - Healing up of a wound inthe skin.

(d) Epimorphosis - Regeneration of curshed and filtered out pieces of a planaria into

as many new planarians.166. Tobacco smoke contains carbon monoxide

which(a) Reduces the oxygen-carrying capacity of

blood(b) Causes gastric ulcers(c) Raises blood pressure(d) Is carcinogenic

167. Dilation of blood vessels, increase in fatsynthesis, low blood sugar and inflammationof stomach are due to the consumption of(a) Tobacco (b) Drug addiction(c) Alcohol(d) Tobacco and drug addiction

168. Which of the following is an opiate narcotic(a) Barbiturates (b) Morphine(c) Amphetamines (d) LSD

169. Psychosis is characterised by(a) Loss of touch with reality(b) Prolonged emotional reaction to a given

a stress(c) Anxiety, fear, sadness, vague aches and

pains(d) All the above

170. Nicotine acts as a stimulant because it mimicsthe effect of(a) Thyroxine (b) Acetylcholine(c) Testosterone (d) Dopamine

171. The corneal grafting has been speciallysuccessful because(a) Its technique is very easy(b) Preservation of cornea is easy(c) Cornea is not concerned with circulatory

system and immune system(d) Cornea is easily available

172. In the chemistry of vision in mammals, thephotosensitive substance is called

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Mock Test-9 SAMPLE PAPER for NEET(UG)-2020(a) Selerotin (b) Retinol(c) Rhodopsin (d) Melanin

173. Otoconium is found in(a) Perilymph (b) Haemolymph(c) Synovial fluid(d) Otolithic membrane

174. Match the followingReceptors Stimuli

A. Statoreceptors 1. Frequencies ofvibrations

B. Gustatory receptors2. Hunger and thirstC. Enteroreceptors 3. TasteD. Mechanoreceptors 4. EquilibriumThe correct pairing sequence is(a) 4, 3, 2, 1 (b) 4, 1, 2, 3(c) 4, 2, 1, 3 (d) 3, 4, 1, 2

175. Brunner's gland are found in which of thefollowing layers(a) Submucosa of stomach(b) Mucosa of ileum(c) Submucosa of duodenum(d) Mucosa of oesophagus

176. The book "Descent of man" and "Selection inrelation to sex" was written by

(a) Lamarck(b) Lamarck and Darwin(c) Weismann (d) C. Darwin

177. Occurrence of vestigial organs is not explainedby(a) Theory of organic evolution(b) Theory of special creation(c) Scala naturae(d) Natural classification system

178. The splint bone of present day horse is a vestigeof(a) Fourth toe (b) First toe(c) Second toe(d) Second and fourth toes in limbs

179. The presence of gill slits in the embryos of allvertebrates supports the theory of(a) Recapitulation (b) Organic evolution(c) Metamorphosis (d) Biogenesis

180. Vestigial organs in human are about(a) 8 (b) 80(c) 100 (d) 108