NEET Mock Test - 13


180 Questions MCQ Test NEET Mock Test Series & Past Year Papers | NEET Mock Test - 13


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This mock test of NEET Mock Test - 13 for NEET helps you for every NEET entrance exam. This contains 180 Multiple Choice Questions for NEET NEET Mock Test - 13 (mcq) to study with solutions a complete question bank. The solved questions answers in this NEET Mock Test - 13 quiz give you a good mix of easy questions and tough questions. NEET students definitely take this NEET Mock Test - 13 exercise for a better result in the exam. You can find other NEET Mock Test - 13 extra questions, long questions & short questions for NEET on EduRev as well by searching above.
QUESTION: 1

A 20 volts A.C. is applied to a circuit consisting of a resistance and a coil with negligible resistance. If the voltage across the resistance is 12 V, the voltage across the coil is

Solution: (V )^2 = (volt across coil)^2 + (volt across resistance)^2 (20)^2 = (volt across coil)^2 + (12)^2 400 = (volt across coil)^2 + 144 so.. voltage across coil = 16
QUESTION: 2

Fraunhofer spectrum is a

Solution:
QUESTION: 3

A photon of energy 4 eV is incident on a metal surface whose work function is 2 eV. Minimum value of reverse potential to be applied for stopping the emission of electrons is

Solution:
QUESTION: 4

A body of mass 5 kg is moving in a circle of radius 1 m with an angular velocity of 2 radian/s. The centripetal force is

Solution:

QUESTION: 5

A proton and an α - particle enter into a region of uniform electric field. The ratio of the force on proton to that on α - particle is

Solution:
QUESTION: 6

The masses of three wires of copper are in ratio 1 : 2 : 3 and their length are in the ratio 3 : 2 : 1. The ratio of their resistances is

Solution:
QUESTION: 7

Three identical cells each of e.m.f. 2 V and unknown internal resistances are connected in parallel. This combination is connected to a 5 Ω resistor. If the terminal voltage across the cell is 1.5 V, then internal resistance of each cell is

Solution:
QUESTION: 8

During X-ray formation if voltage is increased

Solution:
QUESTION: 9

The de-Broglie wavelength of a particle moving with a velocity 2.25 x 108 ms−1 is equal to the wavelength of a photon. The ratio of kinetic energy of the particle to the energy of the photon is [velocity of light = 3 x 108 ms−1 is]

Solution:

From Compton effect
λ = h/p = c/v [From de-Broglie wavelength

QUESTION: 10

An electron of mass m when accelerated through a potential difference V has de Broglie wavelength λ. The de Broglie wavelength associated with a proton of mass M accelerated through the same potential difference will be

Solution:
QUESTION: 11

de-Broglie hypothesis treated electrons as

Solution:

The de Broglie hypothesis states that particles of matter can behave as both waves and particles, just like light.

QUESTION: 12

The fact that radiosignals reach the earth from outside the atmosphere, was discovered accidently by

Solution:
QUESTION: 13

Maxwell's equation describe the fundamental laws of

Solution:
QUESTION: 14

The capacitor of a parallel plate capacitor with no dielectric substance and a separation of 0.4 cm is 2 μF. The separation is reduced to half and it is filled with a substance of dielectric value 2.8. The new capacity of the capacitor is

Solution:
QUESTION: 15

The effective value of a.c. in a circuit is 10 A. The peak value of current is

Solution:
QUESTION: 16

The weight of a body is defined as

Solution:
QUESTION: 17

On a cold morning, a metal surface will feel colder to touch than a wooden surface because

Solution:
QUESTION: 18

A capacitor of capacitance 1 μF is charged to 1KV. The energy stored in the capacitor in joules is

Solution:

C = 1μF
V = 1KV
energy stored U = 1/2 (CV2)
= 1/2 x 1 x 12 = 0.5

QUESTION: 19

A gas at 27°C temperature and 30 atmospheric pressure is allowed to expand to the atmospheric pressure. If the volume becomes 10 times its initial volume, then the final temperature becomes

Solution: Use the formula PV/T = CONSTANT the temp will be 100K, i.e. -173degrees
QUESTION: 20

A circular coli carrying current i is placed in the earth's magnetic field such that its magnetic dipole moment is pointing towards north-west. The neutral points are located on a line passing through the centre of the coli and pointing towards

Solution:
QUESTION: 21

Two steel balls, one which weighs twice as much as the other, roll off a horizontal table with the same speeds. In this situation,

Solution:
QUESTION: 22

When a current flows in a wire, there exists an electric field in the direction of

Solution: An electric current can only flow when there is a closed path in which electrons can move. The two types of current are direct current and alternating current. Charge flows only in one direction in direct current (DC)
QUESTION: 23

If pressure inside two soap bubbles are 1.01 and 1.02 atm respectively, then the ratio between their volumes is (Take atmospheric pressure = 1 atm)

Solution:
QUESTION: 24

A magnetised wire of magnetic moment M is bent into an arc of a circle that subtend and an angle of 60° at the centre. The equivalent magnetic moment is

Solution: Resultant magnetic moment of a wire bent into arc of circle subtending angle θ at centre is given by-
M' = 2Msin(θ/2) / θ

Substituting values-
M' = 2Msin30 / π/3
M' = 3×2×M×1/2 / π
M' = 3M/π

Hence, equivalent magnetic moment of a wire will be 3M/π.
QUESTION: 25

In a Rutherford scattering experiment when a projectile of charge z1 and mass M1 approaches a target nucleus of charge z2 and mass M2, the distance of closest approach is r0. The energy of the projectile is:

Solution:
QUESTION: 26

Which is not electromagnetic wave in the following?

Solution:
QUESTION: 27

The ratio of kinetic energy at mean position to the potential energy when the displacement is half of the amplitude is

Solution:
QUESTION: 28

 represents

Solution:
QUESTION: 29

Light appears to travel in a straight line, because

Solution:
QUESTION: 30

A luminous object is placed at a distance of 30 cm from the convex lens of focal length 20 cm. On the other side of the lens, at what distance from the lens a convex mirror of radius of curvature 10 cm be placed in order to have an inverted image of the object coincident with it ?

Solution:

In order to obtain image coincident with object, the image of object after refraction from the convex lens must be formed on the center of curvature of the convex mirror.

Distance of image from convex lens after refraction from it can be found by using lens equation:

⇒ v = 60cm

Thus, image is formed at a distance of 60cm from the lens.

Thus, the convex mirror should be kept at distance 60cm−10cm=50cm from the lens such that the image is formed at its center of curvature.

QUESTION: 31

When sand is poured on a rotating disc, its angular velocity will

Solution: When sand is poured on a rotating disc , the moment of inertia of the disc will increase , but the angular momentum of the disc will remain constant , and hence its angular velocity will decrease.
QUESTION: 32

The radius of gyration of a uniform rod of length L about on axis passing through its centre of mass is

Solution:
QUESTION: 33

A P-type semiconductor can be obtained by adding

Solution:
QUESTION: 34

The dominant mechanisms for motion of charge carriers in forward and reverse biased silicon P-N junctions are

Solution:
QUESTION: 35

In charging a battery of motor-car, the following effect of electric current is used

Solution:
QUESTION: 36

Two simple pendulums of length 16l and l are in the phase at the mean position at a certain time. If T is the time period of shorter pendulum, the minimum time after which they will be again in phase is

Solution:

The pendulum having greater time period makes one oscillation less than the other

QUESTION: 37

Two moles of monoatomic ideal gas at 60°C are mixed adiabatically with one mole of another monoatomic ideal gas at 12°C. The final temperature of the mixture is

Solution:

QUESTION: 38

In a process, 110 J of heat is added to a gaseous system. If it increases the internal energy of the system by 40 J, then the amount of external work done is

Solution:
QUESTION: 39

The physical quantities not having same dimensions are

Solution:
QUESTION: 40

A tuning fork whose frequency as given by manufacturer is 512 Hz is being tested with an accurate oscillator. It is found that the fork produces a beat of 2 Hz when oscillator reads 514 Hz but produces a beat of 6 Hz when oscillator reads 510 Hz. The actual frequency of fork is

Solution:
QUESTION: 41

The equation of progressive wave is y = 0.2 sin 2π [t/0.01 - x/0.3], where x and y are in metre and t is in second. The velocity of propagation of the wave is

Solution:
QUESTION: 42

At high altitude, a body explodes at rest into two equal fragments with one fragment receiving horizontal velocity of 10 m/s. Time taken by the two radius vectors connecting point of explosion to fragment to make 90° is (g = 10 m/s2)

Solution:
QUESTION: 43

A shell is fired from a cannon with a velocity νm/s at an angle θ with the horizontal direction. At the highest point in its path, it explodes into 2 pieces of equal masses. One of the pieces retraces its path to the cannon. The speed in m/s of the other piece immediately after the explosion is

Solution:
QUESTION: 44

A body of mass 40 kg having velocity 4 m/s collides with another body of mass 60 kg having velocity 2 m/s. If the collision is inelastic, then loss in kinetic energy will be

Solution:

ss of first body  m1​=40 kg and its velocity  u1​=4 m/s

Mass of second body  m2​=60 kg and its velocity  u2​=2 m/s

Energy lost in perfectly inelastic collision

 

QUESTION: 45

Two wires of same radius and length are subjected to the same load. One wire is of steel and the other is of copper. If Young's modulus of steel is twice that of copper, then ratio of elastic potential energies stored per unit volume in steel wire to that in copper wire is

Solution:
QUESTION: 46

Reaction of tert-butyl bromide with sodium methoxide produces

Solution:
QUESTION: 47

The products obtained via oxymercuration (HgSO₄ + H₂SO₄) of 1-butyne would be

Solution:
QUESTION: 48

The ratio of specific charge of a proton to an α-particle is

Solution:

 

e/m "for proton" =1/1 , 

e/m "for alpha-"particle" = 2/4 =1/2

QUESTION: 49

A photon of wavelength 4000 Å strikes a metal surface, the work function of the metal being 2.13 eV. The kinetic energy of the emitted photolectron is __

Solution:

Energy of phtoon,


QUESTION: 50

Haloalkane in the presence of alcoholic KOH undergoes

Solution:
QUESTION: 51

Elimination of bromine from 2- bromobutane results in the formation of

Solution:
QUESTION: 52

Dimerisation in carboxylic acid is due to

Solution:
QUESTION: 53

Scurvy is caused due to deficiency of

Solution:
QUESTION: 54

The correct order of hybridisation of the central room atom in the following species, NH₃, [PtCl₄]2⁻, PCl₅ and BCl₃ is respectively

Solution:
QUESTION: 55

Which of the following species has linear shape?

Solution:
QUESTION: 56

A chemical reaction will be spontaneous if it is accompained by a decrease of

Solution:
QUESTION: 57

If a reaction involves only solids and liquids, Which of the following is true ?

Solution:
QUESTION: 58

When pressure is applied to the equilibrium system, the ice ⇌ water.

Solution:

By increase in temperature in exothermic reactions equilibrium constant will decrease.

QUESTION: 59

Which one of the following statements about the order of a reaction is true?

Solution:
QUESTION: 60

In the complete combustion of butanol (C4H9OH(l))

Solution:
QUESTION: 61

The molar heat capacity of water at constant pressure is 75 J-K⁻1-mol⁻1. When 1.0 KJ of heat is supplied to 100 g of water, then increase in the temperature of water is

Solution:
QUESTION: 62

A good example of an auxin herbicide is

Solution:
QUESTION: 63

The coordination number of Fe(II) in oxyhaemoglobin is

Solution:
QUESTION: 64

The compound without a chiral atom is

Solution:
QUESTION: 65

Two electrolytic cells, one containing acidified ferrous chloride and another acidified ferric chloride, are connected in series. The ratio of iron deposited at cathodes in the two cells will be

Solution:
QUESTION: 66

Standard electrode potentials are
Fe2⁺/Fe (E° = -0.44 V)
Fe3⁺/Fe2⁺ (E° = - 0.77 V)
Fe2⁺,Fe3⁺ and Fe blocks are kept together,then

Solution:
QUESTION: 67

The conductance of electrolytes increases with

Solution:
QUESTION: 68

Aerosols are

Solution:
QUESTION: 69

When K2O is added to water, the solution is basic because it contains a significant concentration of

Solution:
QUESTION: 70

Beryl is an important mineral of

Solution:
QUESTION: 71

The compressibility factor of an ideal gas is

Solution:
QUESTION: 72

In which of the following pairs, both the complexes show optical isomerism? 

Solution:
QUESTION: 73

A closed flask contains water in all its three states, solid, liquid and vapour at 0°C. In this situation the average kinetic energy of water molecules will be

Solution:

The average kinetic energy is maximum in the gaseous state

QUESTION: 74

The structure and hybridization of Si(CH₃)₄ is

Solution:
QUESTION: 75

The electronegativity follows the order

Solution:
QUESTION: 76

The pH of pure water is

Solution:
QUESTION: 77

The pair of amphoteric hydroxide is

Solution:
QUESTION: 78

Acetamide and ethylamine can be distinguished by reacting with

Solution:
QUESTION: 79

Which of the following is an example of natural polymer?

Solution:
QUESTION: 80

In Carius tube the compound ClCH₂-COOH was heated with fuming HNO₃ and AgNO₃. After filtration and washing, a white ppt. was formed. The ppt. is

Solution:
QUESTION: 81

Following carbocation changes to more stable carbocation :

Solution:
QUESTION: 82

Increasing order of the following alkyl halides for SN1 reaction is

Solution:
QUESTION: 83

In the reaction 4Fe + 3O₂ → 4Fe3⁺ + 6O₂- which of the following statement is incorrect ?

Solution:
QUESTION: 84

During Lassaigne's test, N and S present in an organic compound changes into

Solution:
QUESTION: 85

Molarity of HCl (ℓ) if its density is 1.17 g/cc

Solution:
QUESTION: 86

30 ml of solution is neutralised by 15 ml of 0.2 N base. The strength of the acid solution is

Solution:
QUESTION: 87

The volume of 0.025 M H3PO4 required to neutralise 25 ml of 0.03 M Ca(OH)2 is

Solution:

Let the volume used be v
thus 3 x v x 0.025 = 25 x 2 x 0.03 ⇒ v = 20 ml

QUESTION: 88

In Kjeldahl's method, CuSO₄ acts as

Solution:
QUESTION: 89

The number of unpaired electrons in ferrous ion is

Solution:
QUESTION: 90

Ring test for nitrate is performed by adding freshly prepared FeSO₄ solution and conc. H₂SO₄. The brown ring in this test is due to

Solution:
QUESTION: 91

Which one causes water bloom?

Solution:
QUESTION: 92

Except mammals, the lungs occur in

Solution:
QUESTION: 93

In a dorsiventral leaf, protoxylem and metaxylem are located respectively

Solution:
A dorsi-ventral leaf, which is present at an angle to the main axis and perpendicular (normal) to sunlight direction, has two distinct surfaces, the upper or inner or adaxial or ventral and the outer or abaxial or dorsal. The upper and lower epidermis are composed of compactly arranged, barrel-shaped cells without any intercellular spaces and a cuticle on both the layers.
Veins represent the vascular bundles that are found irregularly scattered in the spongy parenchyma of mesophyll with the largest and the oldest one at centre, termed as midrib vein. The xylem has protoxylem lying towards the upper side, i.e., adaxial surface. The metaxylem is present in lateral sides. Phloem is present towards lower epidermis with protophloem on abaxial surface.
Thus, the correct answer is option B.
QUESTION: 94

Protonema is found in the life cycle of

Solution:
QUESTION: 95

What is the characteristic branching pattern of Riccia thallus

Solution:
QUESTION: 96

DNA synthesis occurs during

Solution:
QUESTION: 97

If mitotic division is restricted in G₁ phase of cell, the condition is known as

Solution:
QUESTION: 98

Plasma membrane

Solution:
QUESTION: 99

Peritrichous bacteria have flagella

Solution:
QUESTION: 100

A prokaryotic cell lacks

Solution:
QUESTION: 101

Haploid chromosome number is 12. What is the number in a monosomic?

Solution:
QUESTION: 102

Which is correct match

Solution:
QUESTION: 103

Platelets:

Solution:
QUESTION: 104

Which of the following indicates a normal white blood cell count?

Solution: Mormal white blood cell (WBC) count is important for people who have chronic health conditions. The WBC count is an important measurement that doctors will use to better understand what might be going on inside the body during a variety of health situations.For people with inflammatory bowel disease (IBD), the WBC count can indicate that the inflammation associated with IBD is either increasing or decreasing.As the WBC count goes up, it could mean inflammation is happening somewhere in the body. As the WBC count goes down, it could mean inflammation is resolving Approximate Normal Range 10,000 white blood cells per mm3.
QUESTION: 105

The liquid portion of blood is referred to as _____.

Solution:
QUESTION: 106

Which of the following might trigger erythropoiesis?

Solution:
QUESTION: 107

Preventive birth control measure is :

Solution: Preventing sperm from entering uterus because it's pathway of sperm for fertilization with egg(ovum).
QUESTION: 108

Amniocentesis is a method to :
1. Detect genetic disorders in an unborn baby.
2. Prenatal sex determination.
3. Medical termination of pregnancy.
4. Fertilize the egg.

Solution:
QUESTION: 109

Which of the following are liver waste products?

Solution:
QUESTION: 110

The percentage of ratio of natality over mortality is called :

Solution:
QUESTION: 111

Biome with broad-leaved resinous fire resistant drought enduring plants is

Solution:
QUESTION: 112

A working combination of an apoenzyme and a coenzyme is termed as

Solution:
QUESTION: 113

If a person is passing out large amount of urine and feeling thirsty, yet his urine has no glucose, then the cause of copious micturition can be

Solution:
QUESTION: 114

Hormone connected with concentration of urine or reabsorption of water by nephron is

Solution:
QUESTION: 115

Enzymes occur in animal body

Solution:
QUESTION: 116

The most significant character of a man from the evolution point of view is

Solution:
QUESTION: 117

Cycas is similar to angiosperms in having

Solution:
QUESTION: 118

Which of these is correct statement ?

Solution:

The term "gymnosperm" comes from the composite word in Greek: γυμνόσπερμος (γυμνός, gymnos, 'naked' and σπέρμα, sperma, 'seed'), literally meaning "naked seeds". The name is based on the unenclosed condition of their seeds (called ovules in their unfertilized state).

Hence, Option D

QUESTION: 119

In Lathyrus odoratus, the cross between two purple flowered plants gave a pink flowered progeny. This is due to

Solution:
QUESTION: 120

A heterozygous round seeded plant(Rr) plant is crossed to recessive wrinkled(rr) seeded plant.The progeny would be :

Solution:
QUESTION: 121

The phenomenon where the offspring superior than either of the parents is :

Solution:
QUESTION: 122

Where the optic nerve leaves the eye, the retina has no rods and cones and the images falling in this area cannot be perceived. This area is referred to as the

Solution:
QUESTION: 123

A noninfectious unnatural and unusual reaction to a substance or condition is

Solution:
QUESTION: 124

Blood group A has

Solution:
QUESTION: 125

Antibody is connected with

Solution:
QUESTION: 126

AIDS spreads through

Solution:
QUESTION: 127

Mammary glands are modified

Solution:
QUESTION: 128

Which is common among fly, mosquito and cockroach?

Solution:
QUESTION: 129

Claviceps purpurea is casual organism of

Solution:
QUESTION: 130

Peptidoglycan is characteristic constituent of cell wall in

Solution:
QUESTION: 131

A Dutch scientist A.V. Leeuwenhoek discovered bacteria for the first time in

Solution:
QUESTION: 132

Unsaturated fats are made saturated by

Solution:
QUESTION: 133

Compensation point refers to

Solution:
QUESTION: 134

Mg and Fe are needed for plants in

Solution:
QUESTION: 135

Frame work elements in plants are

Solution:
QUESTION: 136

Wings of cockroach arise from

Solution:
QUESTION: 137

In the gizzard of cockroach, the food is

Solution:
QUESTION: 138

Testes of Earthworm occur segments

Solution:
QUESTION: 139

Blood vascular system of earthworm is

Solution:
QUESTION: 140

Bicollateral condition is found in

Solution:
QUESTION: 141

The plant, which bears clinging roots is

Solution:
QUESTION: 142

Ipomoea has

Solution:
QUESTION: 143

In Opuntia the stem is

Solution:

A phylloclade is a flattened stem with multiple internodes and nodes that serve as a leaf. It arise in the axil of the leaf, does not have any axillary bud but shows unlimited growth. The spines on its surface represent the modified leaves of the axillary bud which serve to check the rate of transpiration and also protect the plant from herbivores. In Opuntia, leaves are reduced to spines and stem is modified to perform photosynthesis. 
Thus, the correct answer is option C.

QUESTION: 144

Sensory receptors initiate nerve impulses in

Solution:
QUESTION: 145

Humus is good for plant growth because

Solution:
QUESTION: 146

Shallow lakes with abundant organic matter are

Solution:
QUESTION: 147

Ventrally placed gill slits are characteristic of

Solution:
QUESTION: 148

The fermentation in yeast is

Solution:
QUESTION: 149

Organic farming is raising crops through use of

Solution:
QUESTION: 150

Pasteurisation is a process that is undertaken to

Solution:
QUESTION: 151

Biogas is produced by anaerobic fermentation of dung and other forms of plant and animal wastes. It consists of

Solution:
QUESTION: 152

Which one of the following is useful in Rice fields?

Solution:
QUESTION: 153

Agar is obtained from

Solution:
QUESTION: 154

Large number of bacteria produced from a single bacterium is called

Solution:
QUESTION: 155

Plants developed in vitro culture from pollen grains are

Solution:
QUESTION: 156

In sclerenchyma, wall is

Solution:
QUESTION: 157

Sexual dimorphism is distinct in Ascaris because of

Solution:
QUESTION: 158

Ultra-violet light causes

Solution:
QUESTION: 159

Lichens do not occur in areas with

Solution:
QUESTION: 160

An air pollutant which can cause acid rain and which is injurious to respiratory tissue is

Solution:
QUESTION: 161

What does the following sequence represent?
Blue-Green Algae → Crustose Lichens → Foliose Lichens → Mosses → Shrubs → Dicotyledonous trees

Solution:
QUESTION: 162

The organisms inhabiting a common environment belong to the same

Solution:
QUESTION: 163

Insulin produced by β-cells in our body contains amino acids

Solution:
QUESTION: 164

The plants differentiated from pollen grain grown in vitro condition are called

Solution:
QUESTION: 165

The normal or polygonum type embryo sac is

Solution:
QUESTION: 166

Chalazogamy occurs in

Solution:
QUESTION: 167

Anemophillous flowers have

Solution:
QUESTION: 168

Antrum is filled with fluid and is found in

Solution:
QUESTION: 169

Which of the following would be affected by removal of the prostate gland?

Solution:
QUESTION: 170

Which of the following hormones is controlled by positive feedback?

Solution:
QUESTION: 171

Cryptorchidism is a condition in which testes are

Solution:

Cryptorchidism is a congenital disorder when one or both of a newborn's testicles fail to descend into the scrotum. Although this condition may occur on both sides, it more commonly affects the right testis. Because the testicles normally descend into the scrotum during the eighth month of gestation, undescended testicles most commonly affect newborns

QUESTION: 172

Pulses belongs mostly to -

Solution:
QUESTION: 173

A crop plant that can grow well is nitrogen deficient soils without addition of manure is -

Solution:
QUESTION: 174

Which of the following is not a characteristic of the glomerulus?

Solution:
QUESTION: 175

Pressure filtration occurs at the

Solution:
QUESTION: 176

Decreasing the concentration of sodium ions in the blood will result in

Solution:
QUESTION: 177

Types of food chains are

Solution:

 

QUESTION: 178

The _____ nervous system division usually stimulates and promotes digestion.