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# NEET Mock Test - 28

## 180 Questions MCQ Test NEET Mock Test Series | NEET Mock Test - 28

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This mock test of NEET Mock Test - 28 for NEET helps you for every NEET entrance exam. This contains 180 Multiple Choice Questions for NEET NEET Mock Test - 28 (mcq) to study with solutions a complete question bank. The solved questions answers in this NEET Mock Test - 28 quiz give you a good mix of easy questions and tough questions. NEET students definitely take this NEET Mock Test - 28 exercise for a better result in the exam. You can find other NEET Mock Test - 28 extra questions, long questions & short questions for NEET on EduRev as well by searching above.
QUESTION: 1

### Work of electric motor is

Solution:

An electric motor is used to convert electrical power into mechanical power. Reverse is done by turbines, generators and dynamos and conversion of DC to AC is done using rectifiers.

QUESTION: 2

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QUESTION: 3

### A resistor of 0.5 Ω is connected to another resistor in parallel combination to get an equivalent resistance of 0.1 Ω. The resistance of the second resistor is

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QUESTION: 4

Two photons of energies twice and thrice the work function of a.metal are incident On the metal surface. Then the ratio of maximum velocities of the photoelectrons emitted in the two cases respectively is

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QUESTION: 5

A plumb line is suspended from a ceiling of a ear moving with horizontal acceleration of a. What will be the angle of inclination with vertical?

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QUESTION: 6

Which of the following is discovered from the discharge tube experiment?

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QUESTION: 7

The internal resistance of a cell of e.m.f. 2 V is 0.1 Ω. It is connected to a resistance of 3.9 Ω. The voltage across the cell will be

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QUESTION: 8

A particle of mass m at rest decays into two masses m₁ and m₂ with non-zero velocities. The ratio of de-Broglie wavelengths of the masses λ₁/λ₂ is

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QUESTION: 9

In Millikan's experiment, an oil drop having charge q gets stationary on applying a potential differnce V in between two plates separated by a distance 'd'. The weight of the drop is

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QUESTION: 10

When a proton is accelerated through 1 V, then its kinetic energy will be

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QUESTION: 11

A small coil of radius r is placed at the centre of a large coil of radius h (where R >> r). The two coils are coplanar. The mutual inductance between the coil is proportional to

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QUESTION: 12

The work function of aluminium 4.2 eV. If two protons, each of energy 3.5 eV strike and electron of aluminimum, then emission of electrons will be

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QUESTION: 13

Which scientist experimentally proved the existance of electromagnetic waves?

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QUESTION: 14

In T.V. broadcasting both picture and sound are transmitted simultaneously. In this

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QUESTION: 15

A dust particle of mass 10−3 gm is stationary between the plates of a horizontal parallel plate capacitor of 0.016m separation which is connected to a voltage of 100V. How many fundamental charges (e = 1.6 x 10 − 19 C) the dust particle carries

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QUESTION: 16

Two spherical conductors A and B having equal radii and carrying equal charges on them, repel each other with a force F, when kept apart at some distance. A third spherical conductor C having same radius as that of A, but uncharged, is brought in contact with A, then brought in contact with B and finally removed away from both. The new force of repulsion between the conductors A and B is

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QUESTION: 17

Two bodies of equal mass m go around a circular path of radius R under the action of their mutual gravitional attraction, in such a way that they remain opposite to each other. The speed of each body is

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QUESTION: 18

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

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QUESTION: 19

At a given temperature, the pressure of an ideal gas of density ρ is proportional to

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QUESTION: 20

A spring balance is attached to the ceiling of a lift. A man hangs his bag on the spring and the balance reads 49 N when the lift is stationary. If the lift moves downwards with an acceleration of 5 m/s2, the reading of the spring balance would be

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QUESTION: 21

The magnetic dipole moment of a current loop is independent of

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QUESTION: 22

A bar magnet is equivalent to a current-carrying

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QUESTION: 23

At the neutral point, horizontal component of the magnetic field due to a magnet is

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QUESTION: 24

How much force is required to produce an elongation of 0.2% in the length of a brass wire of diameter 0.6 mm? (Take Young's modulus for brass = 0.9x1011 N-m⁻2)

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QUESTION: 25

Two spheres of equal masses but radii r1 and r2 are allowed to fall in a liquid of infinite column. The ratio of their terminal velocities are

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QUESTION: 26

If in a nuclear reactor using U235 as fuel, the power output is 4.8 mega watts, the number of fissions per second is:
(energy released per fission of U235 = 200 MeV; 1eV = 1.6 x 10−19 J)

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QUESTION: 27

The difference between the mass of a nucleus and the total mass of the constituents is its

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QUESTION: 28

Two points are located at a distance of 10 m and 15 m from the source of oscillation . The period of oscillation is 0.05 sec and the velocity of the wave is 300 m/sec. What is the phase difference between the oscillations of two points ?

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QUESTION: 29

α- particle is equivalent to

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QUESTION: 30

A ray of light passes through an equilateral prism such that the angle of incidence is equal to the angle of emergence and the latter is equal to 3/4 the angle of prism. The angle of deviation is

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QUESTION: 31

A body of moment of inertia of 3 kg-m2 rotating with an angular velocity of 2 rad-s⁻1 has the same kinetic energy as a body of mass of 12 kg moving with a velocity of

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QUESTION: 32

Fraunhofer spectrum is a

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QUESTION: 33

A solid cylinder 30 cm in diameter at the top of an inclined plane 2.0 m high is released and rolls down the incline without loss of energy due to friction. Its linear speed at the bottom is

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QUESTION: 34

A body of mass 'm' when hung from a long and light spring stretches by 20cm. The period of vibration of the mass when pulled down and released is

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QUESTION: 35

Electrical conductivity of a semiconductor

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QUESTION: 36

The impurity atom added to germanium to make it n-type semiconductor is

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QUESTION: 37

Time-taken by a 836 W heater to heat 1 L of water from 10°C to 40°C is

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QUESTION: 38

Heat given to a body which rises its temperature by 1°C is

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QUESTION: 39

Air in a cylinder is suddenly compressed by a portion, which is then maintained at the same position, with the passage of time

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QUESTION: 40

If radius of a circle is 2.14 m, then area of the circle, with due regards for significant figures, will be

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QUESTION: 41

An organ pipe P1 closed at one end vibrating in its first overtone and another pipe P2 open at both ends vibrating in its third overtone are in resonance with a given tuning fork. The ratio of lengths of P1 and P2 is

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QUESTION: 42

Ultrasonic waves are produced by

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QUESTION: 43

Two springs, having spring constants of 25 N-m⁻1 and 16 N-m⁻1are stretched by forces F₁ and F₂.If work done in stretching the springs is equal, then the ratio of the forces F₁ and F₂ is

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QUESTION: 44

A constant power P is applied to a car starting from rest. If v is the velocity of the car at time t, then

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QUESTION: 45

A ball of mass 400 gm is dropped from a height of 5 m. A boy on the ground hits the ball vertically upwards with a bat with an average force of 100 N so that it attains a vertical height of 20 m. The time for which the ball remains in contact with the bat is [g = 10 m/s2]

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QUESTION: 46

Epichlorohydrin is

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QUESTION: 47 What is X?

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QUESTION: 48

The nitride ion in lithium nitrate is composed of

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QUESTION: 49

Which is correct statement about proton?

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QUESTION: 50

Which of the following does not show electromeric effect?

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QUESTION: 51

A σ - bond is

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QUESTION: 52

Which of the following has magnesium?

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QUESTION: 53

Vinegar made from cane sugar, now-a-days synthetically contains

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QUESTION: 54

The molecule which has the largest dipole moment amongst the following is

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QUESTION: 55

The number and type of bonds between two carbon atoms in calcium carbide are

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QUESTION: 56

The enthalpies of formation of HF and HCI are -161 KJ and -92 KJ respectively. which of the following statement is incorrect?

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QUESTION: 57

Standard molar enthalpy of formation of CO₂ is equal to

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QUESTION: 58

A vessel at equilibrium, contains SO₃, SO₂ and O₂. Now some helium gas is added, so that total pressure increases while temperature and volume remain constant. According to Le-Chatelier's principle, the dissociation of SO₃

Solution:
QUESTION: 59

In the reversible reaction of the type A + B AB. In general Solution:
QUESTION: 60

The half life of a reaction is found to be inversely proportional to the cube of its initial concentration of the reactants. The order of the reaction is

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QUESTION: 61

Hess's law deals with

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QUESTION: 62

In the terminal stage of PSLV-C4, the fuel used is

Solution:

PSLV-C4, launched on 12-Sept-2002, is the seventh flight of Polar Satellite Launch Vehicle (PSLV). It is 44.4 meter tall, 295 metric ton PSLV has four stages using solid and liquid propulsion systems alternately.
The first stage is amongst the largest solid propellant boosters in the world and carries 138 metric tons of Hydroxyl Terminated Poly Butadiene (HTPB) based propellant. It develops a maximum thrust of about 4,628 kilo Newton (kN).
The second stage carries 40 tons of liquid propellant, Unsymmetrical Di-Methyl Hydrazine (UDMH) as fuel and Nitrogen tetroxide (N2O4) as oxidizer. It generates a maximum thrust of about 725 kN.
The third stage of PSLV-C4 uses 7.6 tonne of HTPB-based solid propellant and produces a maximum thrust of 260 kN.
The fourth and the terminal stage of PSLV has a twin engine configuration using liquid propellant loading of 2.5 tons (Mono-methyl hydrazine (MMH) as fuel and Mixed Oxides of Nitrogen as oxidizer),each of these engines generates a maximum thrust of 7.4 kN.

QUESTION: 63

Which of the following alkanes has neither secondary nor tertiary hydrogens ?

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QUESTION: 64

The complex diaquatriammine cobalt (III) chloride is represented as

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QUESTION: 65

Which one of the following will not show geometrical isomerism?

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QUESTION: 66

Which of the following is not a strong electroyte?

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QUESTION: 67

Oxidation number of S in H₂S₂O₈ is

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QUESTION: 68

Green house effect was first described by

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QUESTION: 69

The quantity of electricity required to liberate 112 cm3 of hydrogen at STP from acidified water is

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QUESTION: 70

The metal which cannot be obtained by electrolysis of aqueous solution of its salts is

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QUESTION: 71

Pyrolusite is /an

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QUESTION: 72

Air at sea level is dense. This is a practical application of

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QUESTION: 73

The total pressure exerted by a number of non-reacting gases is equal to the sum of the partial pressure of the gases under the same conditions is known as

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QUESTION: 74

The element which never acts as reducing agent in a chemical reaction is

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QUESTION: 75

Which of the following is the strongest acid?

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QUESTION: 76

Which of the following is most dense?

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QUESTION: 77

The ionic product of water will increase if

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The product of the concentration of hydronium ions and hydroxyl ion in pure water or in any acidic or basic solution is constant at a particular temperature.
It is known as ionic product of water.
It is designated as Kw
The value of Kw increases with the increase in temperature

QUESTION: 78

Gabriel synthesis is used for the preparation of

Solution:
QUESTION: 79

Increasing order of pka values (pKa = - log ka)  pka of H2O, CH3OH and C6H5O H is :

Solution:

pka

value of H2O is 15.7, C6H5OH is 9.95 and CH3OH is 16 so C6H5OH< H2O <CH3OH

QUESTION: 80

Which is not the resonance structure of aniline?

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QUESTION: 81

Which of the following is used in asbestos?

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QUESTION: 82

Duma's method involves the determination of nitrogen content in the organic compound in form of

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QUESTION: 83

Carbon and hydrogen are estimated by

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QUESTION: 84

The oxidation number of carbon in CH₂O is

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QUESTION: 85

The molality of a solution having 18g of glucose (mol.wt.=180) dissolved in 500g of water is

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QUESTION: 86

9.8 g of H₂SO₄ is present in 2 litres of a solution. The molarity of the solution is

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QUESTION: 87

Which of the following properties is not of transition elements ?

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QUESTION: 88

A solute is soluble in two immiscible liquids which are present in the mixture. The concentration of the solute in the upper layer will be

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QUESTION: 89

Which is absorbed in maximum amount by activated charcoal?

Solution:
QUESTION: 90

High purity copper metal is obtained by

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QUESTION: 91

Calyptra is seen in

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QUESTION: 92

Casparian strips contain

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QUESTION: 93

In meiosis disjunction of chromosomes occurs during

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QUESTION: 94

Gametophytic generation is dominant in

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QUESTION: 95

Which one ensures maintenance of chromosome number generation after generation ?

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QUESTION: 96

Which of the following shows the aquatic ancestry of bryophytes

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QUESTION: 97

Which of the following characteristics of the skeletons of frogs are adaptations for jumping?

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QUESTION: 98

Glucose is

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QUESTION: 99

Acetabularia used in hammerling's nucleocytoplasmic experiments is

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QUESTION: 100

Carrier molecules facilitating transport across cell membrane are

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QUESTION: 101

Neutrophils promote adhesion of neutrophils to endothelium, attract other neutrophils, monocytes and eosinophils and dilate capillaries by secreting

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QUESTION: 102

In Drosophila sex is determined by

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QUESTION: 103

An animal having characters of both male and female is

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QUESTION: 104

If Abhishek has type O+ blood, then which of the following is true?

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QUESTION: 105

Which mineral is essential for coagulation to occur?

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QUESTION: 106

In a population, unrestricted reproductive capacity is called as :

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QUESTION: 107

Which of these is a procoagulant?

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QUESTION: 108

The first case of IVF-ET technique success, was reported by :

Solution:
QUESTION: 109

This is the method of birth control :

Solution:
QUESTION: 110

The 10% energy transfer law of food chain was given by

Solution:
QUESTION: 111

The importance of ecosystem lies in

Solution:
QUESTION: 112

Goitre can occur as a consequence of all the following except

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QUESTION: 113

During menstruation the level of progesterone in the blood is

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QUESTION: 114

In colon, constrictions of its wall form a series of small pockets called

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QUESTION: 115

Which of the following correctly matches a digestive enzyme with its source?

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QUESTION: 116

In Pinus, male cone bears a large number of

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QUESTION: 117

Who coined the term zymase for enzymes in Yeast?

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QUESTION: 118

Two dominant independently assorting genes react with each other. They are

Solution:
QUESTION: 119

ATPase enzyme needed for muscle contraction is located in

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QUESTION: 120

Which of the following statements is correct?

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QUESTION: 121

In the roots of Cycas are found

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QUESTION: 122

Cells involved in immune mechanism are

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QUESTION: 123

Fovea centrails of human retina is characterised by

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QUESTION: 124

How many types of gamete will be formed from AaBbCc cell?

Solution:
QUESTION: 125

Test cross is a cross between

Solution:
QUESTION: 126

AIDS related complex or ARC is

Solution:
QUESTION: 127

A disease due to allergic reaction is

Solution:
QUESTION: 128

Bacteria were discovered by

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QUESTION: 129

Auxospores and hormocysts are formed respectively by

Solution:

The bacillariophycean members (diatoms) form about 20% of all primary productions. These are microscopic, eukaryotic, unicellular or colonial coccoid algae. These algae are sexually reproduced by the formation of auxospores in most cases. Bozi (1914) and Fremi (1930) reported that short setions of living cells at the tips of the trichomes of Wertiella lanosa become invested by a thick, lamellated, pigmented sheath. Such multicellular spore like structures function as perennating bodies. They are specially modified hormogones and are called hormospores or hormocysts Desikachary (1948) calls them pseudohormogonia.

QUESTION: 130

Dinosaurs became extinct in

Solution:
QUESTION: 131

Rh factor is named after

Solution:
QUESTION: 132

True coelom or body cavity occurs in

Solution:
QUESTION: 133

True coelom or body cavity occurs in

Solution:
QUESTION: 134

The ion controlling stomatal movement is

Solution:
QUESTION: 135

The process by which energy released during electron transfer, in aerobic respiration coupled to the production of ATP, is termed as

Solution:
QUESTION: 136

Which of the following is not caused by deficieny of mineral nutrition?

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QUESTION: 137

Antennae of Cockroach are

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QUESTION: 138

Lecthin is

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QUESTION: 139

The distal parts of Malpighian tubules in cockroach

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QUESTION: 140

Identify the correctly matched pair

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QUESTION: 141

Growth rings are well marked in trees growing in

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QUESTION: 142

Dorsal blood vessel of Earthworm is collecting tube in

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QUESTION: 143

In Pineapple,the fruit is

Solution:
QUESTION: 144

In Pheretima, septa are absent between which segments?

Solution:
QUESTION: 145

Thick walled, lignified cells which provide mechanical support are called

Solution:
QUESTION: 146

Water storage tissue has

Solution:
QUESTION: 147

The application of engineering and technological principles to the life sciences is called

Solution:
QUESTION: 148

The chemical substance, derived from living organisms having inhibitory effect on parasitic organism, is known as

Solution:
QUESTION: 149

Biotic factors refer to

Solution:
QUESTION: 150

The main function of cerebrospinal fluid is

Solution:
QUESTION: 151

Which one of the following fishes is a living fossil ?

Solution:
QUESTION: 152

The conversion of nitrate to nitrous oxide and nitrogen gas is termed as

Solution:
QUESTION: 153

Modified antibiotics are manufactured by the technique of

Solution:
QUESTION: 154

A new strain of bacteria produced by biotechnology in alcohol industry is

Solution:
QUESTION: 155

Rubber is obtained from

Solution:
QUESTION: 156

Genetic engineered bacteria is used for the production of

Solution:
QUESTION: 157

The organism used for alcohol fermentation is

Solution:
QUESTION: 158

Death of protoplasm is a pre-requisite for a vital function like

Solution:
QUESTION: 159

BOD (biological oxygen demand) is

Solution:
QUESTION: 160

Soil pollutants affecting food chains and food webs by killing microorganisms are

Solution:
QUESTION: 161

The radioactive pollution is caused by

Solution:
QUESTION: 162

In flatworms the excretory organs are

Solution:
QUESTION: 163

Lignin occurs in

Solution:
QUESTION: 164

An asexually produced organism inheriting all the characters of its parent is called

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QUESTION: 165

Which one is a simple protein?

Solution:
QUESTION: 166

Intraspecific incompatibility is overcome by

Solution:
QUESTION: 167

Xenia and metaxenia terms are related with

Solution:
QUESTION: 168

11th July is celebrated as

Solution:
QUESTION: 169

Scholars caught, marked and released 80 fishes in a pond. Later 100 fishes were caught at random. 40 of them were marked. The number of fishes in the pond is

Solution:
QUESTION: 170

The corpus luteum is formed at the site of

Solution:
QUESTION: 171

Testosterone levels in males are regulated by

Solution:
QUESTION: 172

Gram belongs to the family-