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# NEET Mock Test - 13 (03-04-2020)

## 180 Questions MCQ Test NEET Mock Test Series 2020 & Past Year Papers | NEET Mock Test - 13 (03-04-2020)

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This mock test of NEET Mock Test - 13 (03-04-2020) for NEET helps you for every NEET entrance exam. This contains 180 Multiple Choice Questions for NEET NEET Mock Test - 13 (03-04-2020) (mcq) to study with solutions a complete question bank. The solved questions answers in this NEET Mock Test - 13 (03-04-2020) quiz give you a good mix of easy questions and tough questions. NEET students definitely take this NEET Mock Test - 13 (03-04-2020) exercise for a better result in the exam. You can find other NEET Mock Test - 13 (03-04-2020) extra questions, long questions & short questions for NEET on EduRev as well by searching above.
QUESTION: 1

### Work of electric motor is

Solution: Motor is a device which convert alternating current into mechanical energy. generator is a device which convert mechanical energy into alternating current rectifier is an electronic devices which convert alternating current into direct current.
QUESTION: 2

Solution:
QUESTION: 3

### The energy of an X - ray photon of wavelength 1.65Å is (h = 6..6 x 10-34 J -s; c = 3 x 108 ms-1; 1ev = 1.6 x 10-19 J

Solution:
QUESTION: 4

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: 5

If an ammeter is to be used in place of a voltmeter then we must connect with the ammeter a

Solution:
QUESTION: 6

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: 7

If the equation for the displacement of a particle moving on a circular path is given by (θ) = 2t3 + 0.5, where θ is in radians and t in seconds, then the angular velocity of the particle after 2 sec from its start is

Solution:
QUESTION: 8

The work functions for sodium and copper are 2 eV and 4 eV. Which of them is suitable for a photocell with 4000Å light

Solution:
QUESTION: 9

The energy of a photon of wavelength λ is given

Solution:
QUESTION: 10

Mixed He⁺ and o2⁺ ions (mass of He⁺ = 4 amu and that of o2⁺= 16 amu) beam passes a region of constant perpendicualr magnetic field. If kinetic energy of all the ions is same then

Solution:
QUESTION: 11

A metal plate gets heated, when cathode rays against it, due to

Solution:
QUESTION: 12

An inductance L having a resistance R is connected to an alternating source of angular frequency ω. The quality factor (Q) of the inductance is L/R

Solution:
QUESTION: 13

The difference between soft and hard X-rays is

Solution:
QUESTION: 14

Which scientist experimentally proved the existance of electromagnetic waves?

Solution:
QUESTION: 15

If 4 x 1020 eV of energy is required to move a charge of 0 . 25 coluomb between two points, the p.d between them is

Solution: 1ev= 1.6×10^-19 J =16×10^-20 J 4×10^20×16×10^-20=64 PD = work done /charge = 64/0.25 = 256v.
QUESTION: 16

If the charge on a body is increased by 2C, the energy stored in it increased by 21%.The original charge on the body in coulombs is

Solution:
QUESTION: 17

The angular velocity of rotation of star at which the matter strat to escape from its equator will be

Solution:
QUESTION: 18

The radiant energy from the sun incident normally at the surface of earth is 20 kcal/m2 min. What would have been the radiant energy incident normally on the earth, if the sun had a temperature twice of the present one

Solution:
QUESTION: 19

Consider a gas with density ρ and c̅ as the root mean square velocity of its molecules contained in a volume. If the system moves as whole with velocity υ, then the pressure exerted by the gas is

Solution:
QUESTION: 20

A shell of mass m moving with velocity ν suddenly breaks into 2 pieces. The part having mass m/4 remains stationary. The velocity of the other part will be

Solution: According to law of conservation of momentum mv=m/4×0+3m/4×v' v'=4v/3
QUESTION: 21

A current carrying straight wire is kept along the axis of a circular loop carrying a current. The straight wire

Solution:
QUESTION: 22

A bar magnet used in vibration magnetometer is heated so as to reduce its magnetic moment by 36%. The time period of the magnet [Neglecting the changes in the dimensions of the magnet ]

Solution: QUESTION: 23

For protecting sensitive equipment from external magnetic field, it should be

Solution:
QUESTION: 24

The shape of a liquid drop becomes spherical due to its

Solution:
QUESTION: 25

In carbon cycle of fusion

Solution:
QUESTION: 26

A radioactive isotope has a half-life of 2 years. How long will it take the activity to reduce to 3% of its original value?

Solution:
QUESTION: 27

A cube is subjected to a uniform volumatric compression. If side of cube decreases by 1%, then its bulk strain is

Solution:
QUESTION: 28

Period of oscillation of mass attached to a spring and performing SHM is T. The spring is now cut into four equal pieces and the same mass attached to one piece. Now the period of its simple harmonic oscillation is

Solution:
QUESTION: 29

A radioactive sample at any instant has its disintegration rate 5000 disintegrations per minute. After 5 min, the rate is 1250 disintegrations per min. Then, the decay constant (per minute) is

Solution:
QUESTION: 30

The equivalent focal length of a Huygen's eye piece

Solution:
QUESTION: 31

Two waves are said to be coherent if they have

Solution:
QUESTION: 32

A wheel has a speed of 1200 rpm and is made to slow down at a rate of 4 rad/s2. The number of revolutions it makes before coming to rest is

Solution: QUESTION: 33

A disc is of mass M and radius r. The moment of inertia of it about an axis tangential to its edge and in plane of the disc or parallel to its diameter is

Solution:
QUESTION: 34

In a semiconductor the separation between conduction band and valence band is of the order of

Solution:
QUESTION: 35

The minimum phase difference between the two simple harmonic oscillations

y₁=(1/2)sinωt+(√3/2)cosωt and y₂=sinωt+cosωt is

Solution:
QUESTION: 36

Bonding in a germanium crystal (semiconductor) is

Solution:
QUESTION: 37

To deposit one litre of hydrogen at 22.4 atmosphere from acidulated water, the quanity of electricity that must pass through is

Solution:
QUESTION: 38

During an adiabatic process, if the pressure of an ideal gas is proportional to the cube of its temperature, the ratio (Cp,Cv are specific heats at constant pressure and volume)

Solution:
QUESTION: 39

A cylinder of radius r and of thermal conductivity K1 is surrounded by a cylindrical shell of inner radius r and outer radius 2r made of a material of thermal conductivity K2. The effective thermal conductivity of the system is

Solution:
QUESTION: 40

Unit of impulse is

Solution:
QUESTION: 41

Two waves of same frequency and intensity superimpose with each other in opposite phases, then after superposition the

Solution:
QUESTION: 42

A vibrating tuning fork generates a wave given by y = 0.1 sinπ (0.1x - 2t), where x and y are in metre and t is in seconds. The distance travelled by the wave while the fork completes 30 vibrations is

Solution:

Comparing with y = A sin(ωt - kx), we find
k = 0.1π = 2π/λ
⇒ λ = 20m
Here, λ is the distance travelled in one vibration
Hence, distance travelled in 30 vibrations = 600m

QUESTION: 43

A particle of mass m at rest is acted upon by a force P for a time t. Its kinetic energy after an interval t is

Solution:
QUESTION: 44

A ball is projected vertically down with an initial velocity from a height of 20 m onto a horizontal floor. During the impact it loses 50% of its energy and rebounds to the same height. The initial velocity of its projection is

Solution:
QUESTION: 45

A body of mass 2 kg makes an elastic collision with another body at rest and continues to move in the original direction with one fourth of its original speed. The mass of the second body which collides with the first body is

Solution:
QUESTION: 46

A compound X undergoes reduction with LiAlH₄ to yield Y. When vapours of Y are passed over freshly reduced copper at 300°C. X is formed. What is Y?

Solution:
QUESTION: 47

Which of the following are iso-electronic and iso-structural?

Solution:
QUESTION: 48

The reagent with which both acetaldehyde and acetone react easily is

Solution:
QUESTION: 49

The mass of the proton is 1840 times that of electron. If it is accelerated by applying a potential difference of 1 kV, the kinetic energy of proton is

Solution:
QUESTION: 50

The four bonds in methane are directed in space at an angle of

Solution:
QUESTION: 51

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

Solution:
QUESTION: 52

The α-amino acids, usually, exist in the form of zwitter ions. It means they consist of

Solution:
QUESTION: 53

The acid showing salt like character in aqueous solutions is

Solution:
QUESTION: 54

Which of the following molecules has zero dipole moment?

Solution:
QUESTION: 55

In which of the following, the bond angle between the two atoms is minimum?

Solution:
QUESTION: 56

Which of the following conditions regarding the chemical process ensure its spontaneity at all temperatures ?

Solution:
QUESTION: 57

Na2O, Al2O3, MgO and SiO2 have heats of formation equal to -416, -911, -1676 and -602 KJ-mol-1 respectively. which is most stable?

Solution:

Energy is released when a compound with a negative heat of formation is formed from its elements. The same amount of energy is required to decompose that compound into elements. The higher is the value of the negative heat of formation, greater is the amount of energy required for the decomposition of the compound, that is, the more stable the compound is. Thus, carbon dioxide with ΔH° f = -393.5 kJ mole-1 is more stable than water (liquid) the ΔH° f for which is = 285.8 kJ mole-1.

QUESTION: 58

Which of the following is true about catalyst?

Solution:
QUESTION: 59

For the reaction
AB2 (g)   ⇌ AB (g) + B (g)
If α is negligiable w.r.t. 1 then degree of dissociation (α) of AB2 is proportional to

Solution:
QUESTION: 60

Which of the following is an endothermic reaction?

Solution:

A reaction in which heat is absorbed when reactants are converted into products is called endothermic reaction During the reaction heat is absorbed, by the system from the surroundings and ΔH is + ve
So the reaction is endothermic reaction

QUESTION: 61

Identify the correct statement regarding entropy

Solution:
QUESTION: 62

In liquid propellants the fuel is

Solution:
QUESTION: 63

The prefixes sys and anti are used to denote

Solution:
QUESTION: 64

The hypothetical complex Diaquatriammine-chloro-cobalt(III) chloride can be represented as

Solution:
QUESTION: 65

When one Faraday current is passed which of the following would deposit one gram atomic weight of the metal?

Solution:
QUESTION: 66

The shape of [Cu(NH₃)₄]2⁺ is

Solution:
QUESTION: 67

An electrolyte

Solution:
QUESTION: 68

Faraday's laws of electrolysis are related to the

Solution:
QUESTION: 69

Which of the following flux is used to remove acidic impurities in metallurgical processes?

Solution:
QUESTION: 70

Anoxia is caused by

Solution:
QUESTION: 71

Heating an ore in the absence of air below its melting point is called

Solution:
QUESTION: 72

Use of hot air balloons in sports and metereological observations is an application of

Solution:
QUESTION: 73

Solution:
QUESTION: 74

The V.D. of a gas is 11.2. The volume occupied by 11.2 gm of this gas at N.T.P. is

Solution: Molar mass = 2 *VD = 2*11.2=22.4gm At NTP, 22.4g occupies = 22.4ltrs 11.2g will occupy=(22.4÷22.4)*11.2 ltrs=11.2ltrs.
QUESTION: 75

Which of the following sets gives the correct arrangement of the compounds involved based on their bond strengths?

Solution:
QUESTION: 76

The hydrolysis of a salt of strong acid and weak base is called

Solution:
QUESTION: 77

Which of the following compound is tribasic acid?

Solution:
QUESTION: 78

Which one of the following methods is neither meant for synthesis nor for separation of amines ?

Solution:
QUESTION: 79

Arrange these compounds in order of increasing SN1 reaction rate : Solution:
QUESTION: 80

Major and minor product of E2 reaction of Solution:
QUESTION: 81

which of the following is a synthetic polymer?

Solution:
QUESTION: 82

In Lassaigne's test for nitrogen, the blue colour is due to the formation of

Solution:
QUESTION: 83

Steam distillation is used for the purification of

Solution:
QUESTION: 84

Which of the following is not a redox reaction?

Solution:
QUESTION: 85

For a 1 molar solution of NaCl in water at 25°C and 1 atm. pressure

Solution:
QUESTION: 86

Volume of 0.1 M K₂Cr₂O₇ required to oxidise 35 ml of 0.5 M FeSO₄ solution is

Solution: As per the balanced redox reaction you get that 6 mole of Fe2+(ferrous) ion is able to neutralize 1mole of (Cr2O7 )2- or dichromate ion. as per the molarity equation, Molarity=(number of moles of solute) divided by volume of solution in litre. hence the number of moles of ferrous sulphate present in 35ml of 0.5 molar ferrous sulphate solution is 0.0175.since 6mole of ferrous ion oxidised by 1mole of dichromate ion, 0.0175mole will be oxidised by 0.002916 mole of dichromate ion(from calculation). since we know from molarity equation, volume of solution would be = (number of moles of solute)divided by(molarity).then putting the values in the formula we get the volume = 0.02916 litre or 29.16 29 ml.
QUESTION: 87

The valence shell of transition elements consist of

Solution:
QUESTION: 88

The volume of a concentrated H2SO4, mixed with 0.5 N KOH to prepare 150 ml of 0.2 N KOH solution is

Solution: QUESTION: 89

Reaction of zinc with cold and very dil. HNO₃ gives

Solution:
QUESTION: 90

In homogeneous catalytic reactions, the rate of reaction

Solution:
QUESTION: 91

Conjugation occurs in

Solution:
QUESTION: 92
Frog's heart consists of
Solution:
QUESTION: 93
Significance of mitosis is in
Solution:
QUESTION: 94

The oldest layer of secondary phloem in a dicot stem is located just

Solution:
QUESTION: 95
A bivalent consists of
Solution:
QUESTION: 96
The dehiscence of moss capsule takes place by the rupture of the following
Solution:
QUESTION: 97
Leafy gametophyte is formed from protonema in
Solution:
QUESTION: 98

A condition of not having exact multiple of haploid set is

Solution:
QUESTION: 99

Who proposed the concept of unit membrane for tripartite structure of lipoproteins?

Solution:
QUESTION: 100

Under electron microscope, chromatin fibres appear like beads in a string. The beads are

Solution:
QUESTION: 101

Chloroplasts fix

Solution:
QUESTION: 102

Which is the last molecule to appear in a clotting reaction?

Solution:
QUESTION: 103

Chromosome is connected with

Solution:
QUESTION: 104

Which of the following does not belong with the others?

Solution:
QUESTION: 105

HIV is classified as a retrovirus because its genetic information is carried in :

Solution:
QUESTION: 106

High increase in human population is due to :

Solution:
QUESTION: 107

The percentage of blood cells in whole blood is called _____.

Solution:
QUESTION: 108

Oral contraceptives are used by females to check :

Solution:
QUESTION: 109

Platelets:

Solution:
QUESTION: 110

Most of the contraceptive pills contain

Solution:
QUESTION: 111

Annual plants lacking perennating buds belong to

Solution:
QUESTION: 112

Where does complete digestion of protein take place?

Solution:
QUESTION: 113

An organ where a hormone shows its effect is called

Solution:
QUESTION: 114

Which of the following pairs is a sedimentary type of biogeochemical cycle?

Solution:
QUESTION: 115

pH of gastric juice is

Solution:
QUESTION: 116

The female cone of Pinus is a modification of -

Solution:
QUESTION: 117

In Pinus male and female reproductive structures occur -

Solution:
QUESTION: 118

Which of the following statements is correct?

Solution:
QUESTION: 119

Enzyme inhibition caused by a product of enzyme catalysed reaction is

Solution:
QUESTION: 120

A nonprotein organic part attached firmly by covalent linkage to apoenzyme is

Solution:
QUESTION: 121

The term 'gene' was introduced by :

Solution:
QUESTION: 122

Vaccines produced through geneticengneering are safe as

Solution:
QUESTION: 123

Short lived immunity acquird by foetus/infant from mother through placenta/milk is

Solution:
QUESTION: 124

Which of the following variations are temporary and have nothing to do with the last or next generation?

Solution:
QUESTION: 125

Sensory neurons of retina of eye are

Solution:
QUESTION: 126

Edward Jenner discovered

Solution:
QUESTION: 127

Presence of extra finger or toe is known as

Solution:
QUESTION: 128

Who discovered vaccine against small pox?

Solution:
QUESTION: 129

The most well studied bacterial-plant relationship is that of

Solution:
QUESTION: 130

All chordates possess

Solution:
QUESTION: 131

One of the following spores suggest the imperfect stage of the fungus

Solution:
QUESTION: 132

Tapeworm does not possess digestive system as it

Solution:
QUESTION: 133

Genetic recombination through transduction was first discovered in bacterium

Solution:
QUESTION: 134

Photochemical reactions in chloroplasts are directly involved in

Solution:
QUESTION: 135

The number of ovarioles in each ovary of cockroach is

Solution:
QUESTION: 136

A saturated fatty acid is

Solution:
QUESTION: 137

Function/s of Malpighian tubules in cockroach is/are

Solution:
QUESTION: 138

Which one does not fix nitrogen?

Solution:
QUESTION: 139

Deficiency of Molybdenum causes

Solution:
QUESTION: 140

In earthworm setae occur in all segments except

Solution:
QUESTION: 141

Modification of petiole into leaf like structure called

Solution:
QUESTION: 142

The direction of the conduction of food through phloem is

Solution:
QUESTION: 143

At maturity, which of the following is non-nucleated ?

Solution:
QUESTION: 144

The female genital pore of Pheretima posthuma located upon the segment

Solution:
QUESTION: 145

In a flowering plant, archesporium gives rise to

Solution:
QUESTION: 146

Which organelle would be required in large numbers by a cell whose membrane is often depolarized?

Solution: As in body of any organism ATP is must and required in large amount which is formed in mitrocondria so much the no. Of mitrocondira in a cell more will be the ATP synthesis and more energy produced And for production of ATP in the inner mitrocondrial memb. electron are going through ETS due to which memb. of mitrocondia most of the time remaian in depolarized condition
QUESTION: 147

The genes for antibiotic resistance are found in

Solution:
QUESTION: 148

Which of the following organic acid is the main source of vinegar?

Solution:
QUESTION: 149

Individuals of a species which occur in a particular area constitute

Solution:
QUESTION: 150

Edaphology is connected with

Solution:
QUESTION: 151

Which of the following is a true fish ?

Solution:
QUESTION: 152

Triticale is the hybrid between wheat and

Solution:
QUESTION: 153

If by radiation all nitrogenase enzymes are inactivated, then there will be no

Solution:
QUESTION: 154

Blood spectrum antibiotic is effective

Solution:
QUESTION: 155

Which one is not a component of organic farming

Solution:
QUESTION: 156

Genetic transformation by applying high electric potential for a few microseconds to change the porosity of protoplast to DNA is called

Solution:
QUESTION: 157

Sporeine was developed in

Solution:
QUESTION: 158

Water pollution is caused due to

Solution:
QUESTION: 159

Separate xylem and phloem bundles are known as

Solution:
QUESTION: 160

Which of the following are monogenic parasites

Solution:
QUESTION: 161

Which of the following is biodegradable pollutant?

Solution:
QUESTION: 162

Intensity of sound in normal conversation is

Solution:
QUESTION: 163

Bordered pits are found in

Solution:
QUESTION: 164

Which is the method followed for virus elimination in plants

Solution:
QUESTION: 165

Two different types of plant species living together at a place represent

Solution:
QUESTION: 166

When the pollen tube enter the embryo sac through the base of the ovule or even piercing the integument, the fertilization is called

Solution:
QUESTION: 167

Which one is true?

Solution:
QUESTION: 168

A basic amino acid is

Solution:
QUESTION: 169

A flower characterised by monadelphous tubular stamen belongs to

Solution:
QUESTION: 170

Bulbovestibular gland is found in female rabbit. It is also known as

Solution:
QUESTION: 171

Testosterone in the adult male is produced by the

Solution:
QUESTION: 172

Pseudopregnancy is due to

Solution:
QUESTION: 173

Menstruation is triggered by an abrupt decline in the amount of

Solution:
QUESTION: 174

Embryo developed from nucellus and integument is known as

Solution:
QUESTION: 175

In which one family all hypogyonous, perigynus and epigynous conditions found -

Solution:
QUESTION: 176

If the blood becomes acidic, the kidneys will maintain homeostasis by actively excreting

Solution:
QUESTION: 177

Of the following which one is cultivated for carbohydrates, proteins and fats -

Solution:
QUESTION: 178

Aldosterone is secreted by the

Solution:
QUESTION: 179

Antidiuretic hormone (ADH) has an effect on the

Solution:
QUESTION: 180

When the level of ADH (antidiuretic hormone) increases in the blood,

Solution: