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# NEET Mock Test - 15

## 180 Questions MCQ Test NEET Mock Test Series & Past Year Papers | NEET Mock Test - 15

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This mock test of NEET Mock Test - 15 for NEET helps you for every NEET entrance exam. This contains 180 Multiple Choice Questions for NEET NEET Mock Test - 15 (mcq) to study with solutions a complete question bank. The solved questions answers in this NEET Mock Test - 15 quiz give you a good mix of easy questions and tough questions. NEET students definitely take this NEET Mock Test - 15 exercise for a better result in the exam. You can find other NEET Mock Test - 15 extra questions, long questions & short questions for NEET on EduRev as well by searching above.
QUESTION: 1

### The self-inductance of the motor of an electric fan is 10 H. In order to impart maximum power to the motor at 50 Hz, it should be connected to a capacitance of

Solution:

Condition for maximum power transfer:
Maximum power transfer takes place at resonant frequency, QUESTION: 2

Solution:
QUESTION: 3

### Two ions of the same charge and energy but different mass are passing through a uniform magnetic field. The radii of their paths are proportional to

Solution:
QUESTION: 4

A particle of mass m is executing uniform circular motion on a path of radius r. If p is the magnitude of its linear momentum. The radial force acting on the particle is

Solution:
QUESTION: 5

The resistance of a conductor increases with

Solution:
QUESTION: 6

The potential difference between two electrodes of a galvanic cell, in an open circuit, is known as

Solution:
QUESTION: 7

An electron remains undeflected when passing perpendicular to mutually perpendicular electric and magnetic fields. If the magnetic field is 8 Gauss and elecric field is 4000 V/m, the velocity of the electron is

Solution:
QUESTION: 8

Which of the following is deflected by electric field ?

Solution:
QUESTION: 9

When ultraviolet rays are incident on a metal plate, then the photoelectric effect does not occurs. It occurs by the incidence of

Solution:
QUESTION: 10

When wavelength of incident photon is decreased upon

Solution:
QUESTION: 11

If work function of metal is 3 eV then threshold wavelength will be

Solution:
QUESTION: 12

In an A.C. circuit, a resistance of R Ω is connected in series with an inductance L. If phase angle between voltage and current is 45°, the value of inductive reactance will be

Solution:
QUESTION: 13

Which of the following rays are not electromagnetic wave?

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QUESTION: 14

What is the cause of "Green house effect"?

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QUESTION: 15

The electric field inside a charged conductor of radius r is

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QUESTION: 16

A 2μF condenser is charged to 500V and then its plates are joined through of consistance. The heat produced in the resistance in joules is

Solution:
QUESTION: 17

The orbital velocity of an artificial satellite in a circular orbit just above the earth's surface is V. For a satellite orbiting at an altitude of half of the earth's radius, the orbital velocity is

Solution:
QUESTION: 18

Two metal rods A and B of equal lengths and equal cross sectional areas are joined end to end. The coefficients of thermal conductivities of A and B are in the ratio 2:3 when the free end of A is maintained at 100°C and the free end of B is maintained at 0°C, the temprature of the junciton is

Solution:

As the rods A and B are connected in series Q/t = constant

Let the temperature of the junction be ‘t’ under thermal equilibrium QUESTION: 19

The average kinetic energy of a gas molecules at 27°C is 6.21x1021 J. Its average kinetic energy at 227°C will be

Solution:
QUESTION: 20

A cyclotron oscillator frequency is 10 MHz. If radius of its dees 60 cm, then magnetic field for accelerating the protons is (Given e = 1.6 x 10-19C, mp = 1.67 x 10-27 kg)

Solution:

v = 10 MHz = 10 x 106 Hz = 107 Hz
R = rm = 60 cm = 0.6 m
e = 1.6 x 10-19 C
m = 1.67 x 10-27 kg
resonance v = Be 2πm
or B = 2πmv e
= 2 x 3.14 x 1.67 x 10 − 27 x 10 7 1.6 x 10 − 19
= 0.66 tesla

QUESTION: 21

A block has been placed on an inclined plane with the slope angle θ, block slides down the plane at constant speed. The coefficient of kinetic friction is equal to

Solution:
QUESTION: 22

A magnet of magnetic moment M is cut into two equal parts. The two parts are placed perpendicular to each other so that their north poles touch each other. The resultant magnetic moment is

Solution:

Magnetic moment of each part = m/2
Resultant magnetic moment of perpendicular magnets QUESTION: 23

Three identical bar magnets are placed in the form of an equilateral triangle with north pole of one touching the south pole of the other as shown in fig. The net magnetic moment of the system is Solution:
QUESTION: 24

The force of cohesion is maximum in

Solution:
QUESTION: 25

Two wires of the same material and length, but diameters in the ratio 1 : 2 are stretched by the same force. The elastic potential energy stored per unit volume for the two wires when stretched, will be in the ratio of

Solution: QUESTION: 26

If 200 Mev energy is released in the fission of a single nucleus of 92 U 235 , how many fissions must occur per second to produce a power of 1 kW?

Solution:

Let n be number of fissions per second.
Each fission produces  200 MeV.
n×200×106 eV  is produced in one second by n fissions
But 1 eV =1.6×10−19 J
Hence, power produced =n×200×106×1.6×10−19 Joule per second.
Also 1 J/s = 1 W and
1000 J/s = 1 kW.
The required power is 1 kW. QUESTION: 27

Why high temperature is required for fusion reaction?

Solution:
QUESTION: 28

α- particle is equivalent to

Solution:
QUESTION: 29

The potential energy of a particle executing simple harmonic motion at a distance y from its equilibrium position is

Solution:
QUESTION: 30

According to the modern theory for nature of light, the light has

Solution:
QUESTION: 31

Red light is used as danger signal because it is

Solution:
QUESTION: 32

A 2 kg mass is rotating on a circular path of radius 0.8 m with angular velocity of 44 rad-s⁻1. If radius of the path becomes 1 m, then value of angular velocity will be

Solution:

m1 = 2 kg, r1 = 0.8 m and ω1 = 44m/s
m2 = 2 kg, r2 = 1 m and ω2 = ?
Since there is no external force acting, angular momentum remains conserved.
Therefore, m1ω1r12 = m2ω2r22
44×(0.8)2 = ω2 × (1)2

QUESTION: 33

A person measures the time period of a simple pendulum inside a stationary lift and finds it to beT. If the lift starts accelerating upward with an acceleration of g/3, the time period of pendulum will be

Solution:
QUESTION: 34

The solar system is an example of

Solution:
QUESTION: 35

In p-n junction, avalanche current flows in circuit when biasing is

Solution:
QUESTION: 36

If nearly 105 coulomb liberate 1 gm equivalent of aluminium, then the amount of aluminium (equivalent weight 9) deposited through electrolysis in 20 minutes by a current of 50 amp will be

Solution:
QUESTION: 37

In a semiconductor

Solution:

At 0K, there are no excitations among the electrons so there are no free electrons in semiconductors at 0K.

QUESTION: 38

When a Van der Waals' gas undergoes free expansion then its temperature

Solution:
QUESTION: 39

A certain mass of gas at N.T.P. is suddenly expanded three times its volume under adiabatic conditions. The resulting temperature will be (Take γ=1.4)

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QUESTION: 40

Which of the following is a dimensionless quantity?

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QUESTION: 41

A tuning fork produces wave in medium. If the temperature of the medium changes then which of following will change

Solution:
QUESTION: 42

Two identical flutes produce fundamental notes of frequency 300 Hz at 27°C. If the temperature of air in one flute is increased to 31°C, the number of the beats heard per second will be

Solution:
QUESTION: 43

It is easier to draw up a wooden block along an inclines plane than have it up vertically, principally because

Solution:
QUESTION: 44

The potential energy of a body is given by : A-B x2 (where x is the displacement). The magnitude of force acting on the particle is

Solution:
QUESTION: 45

A bomb of 12 kg divides in two parts whose ratio of masses is 1 : 3. If the kinetic energy of smaller part is 216 J, then momentum of bigger part in kg-m/s will be

Solution:
QUESTION: 46

Which of the following is most acidic?

Solution:
QUESTION: 47

Reductive ozonolysis of benzene produces

Solution:
QUESTION: 48

The iso-electronic pair is

Solution:
QUESTION: 49

The energy of a hydrogen atom in its ground state is -13.6eV. The energy of the level corresponding to the energy level equal to 5 is

Solution:
QUESTION: 50

The alkyl halide is converted into ethyl alcohol by

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QUESTION: 51

Which of the following compound acts both nucleophile as well as an electrophile?

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QUESTION: 52

The chemical change in DNA molecule that could lead to synthesis of protein with an altered amino acid sequence is called

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QUESTION: 53 In the above sequence of reactions, A and B are

Solution:
QUESTION: 54

Pairs of species having identical shapes for molecules is

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QUESTION: 55

The maximum number of hydrogen bonds formed by a water molecule in ice, is

Solution:
QUESTION: 56

Which of the following does not represent the criterion of spontaneity ?

Solution:
QUESTION: 57

Given that
C(s) + O₂(g) → CO₂(g); ∆H = - 395 KJ
S(s) + O₂(g) → SO₂(g); ∆H = -295 KJ
CS₂(l) + 3O₂(g) → CO₂(g) + 2SO₂(g); ∆H + -1110 KJ
The heat of formation of CS₂ is

Solution:
QUESTION: 58

The values of Kp1 and Kp2 for the reactions are in the ratio of 9:1. If degree of dissociation of X and A be equal, then total pressure at equilibrium (1) and (2) are in the ratio:

Solution:
QUESTION: 59

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

Solution:
QUESTION: 60

A system is said to be in thermodynamic equilibrium when it is in

Solution:
QUESTION: 61

In which one the following reactions does the heat change represents the heat of formation of water

Solution:
QUESTION: 62

Methyl orange is an example of which of the following type of dye?

Solution:
QUESTION: 63

The IUPAC name of the compound having the formula (CH₃)₃C-CH =CH₂ is

Solution:
QUESTION: 64

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

Solution:
QUESTION: 65

Which one of the following is expected to exhibit optical isomerism? (en = ethylenediamine)

Solution:
QUESTION: 66

If hydrogen electrode dipped into solution of pH = 3 and pH = 6 and salt bridge is connected the e.m.f. of resulting cell is

Solution:
QUESTION: 67

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

Solution:
QUESTION: 68

In an electrolytic cell, the flow of electrons is from

Solution:
QUESTION: 69

The major cause of air pollution in big cities is

Solution:
QUESTION: 70

When an aqueous solution of sodium chloride is electrolysed using platinum electrodes, the ions discharged at the electrons are

Solution:
QUESTION: 71

If 0.44 g of a colourless oxide of nitrogen occupies 224 ml at 1520 mm hg and 273°C, then the compound is

Solution:
QUESTION: 72

Main process for the manufacture of sodium carbonate is

Solution:
QUESTION: 73

Pressure of a gas is due to

Solution:
QUESTION: 74

The composition of the common glass is

Solution:
QUESTION: 75

Iodine is formed when KI reacts with a solution of

Solution:
QUESTION: 76

The Ksp of CuS,Ag₂S and HgS are 10⁻31, 10⁻44, 10⁻54 respectively. The solubility of these sulphides are in the order

Solution:
QUESTION: 77

Which is most basic ?

Solution:
QUESTION: 78

Which one of the following compound is not a protonic acid?

Solution:

Explanation:

B(OH)3 in aqueous medium coordinates a molecule of water to form the hydrated species In this species, B3+ ion, because of its small size, exercises a high polarizing power thereby pulling the sigma electron charge of the coordinated O atom towards itself. The coordinated oxygen, in turn, pulls the sigma electron charge of the OH bond of the attached water molecule towards itself. This facilitates the removal of H+ ion from the O - H bond. Thus, the solution of B(OH)3 in water acts as a weak acid, and it is not a protonic acid.

QUESTION: 79

Which is not observed in nucleophilic addition reaction?

Solution:
QUESTION: 80

Bakelite is prepared by the reaction between

Solution:
QUESTION: 81

Ethynic hydrogen is released most easily in :

Solution:
QUESTION: 82

In Kjeldahl's method ,nitrogen present is estimated as

Solution:
QUESTION: 83

C₂H₆(g) + nO₂ → CO₂ (g) + H₂O (l) In this equation, the ratio of the coefficients of Co₂ and H₂O is

Solution:
QUESTION: 84

An organic compound with C = 40% and H = 6.7% will have the empirical formula

Solution:
QUESTION: 85

A 5% of solution of cane sugar (MW = 342) is isotonic with 1% solution of substance X. The molecular weight of X is

Solution:
QUESTION: 86

Colloidal solution commonly used in the treatment of eye disease is

Solution:

Because of larger surface area in collidal state , adsorption in more , also it acts as germ-killer .

QUESTION: 87

0.01 M solution each of urea, common salt and Na₂SO₄ are taken, the ratio of depression of freezing point is

Solution:
QUESTION: 88

An atom with atomic number 21 belongs to the category of

Solution:
QUESTION: 89

The weight of pure NaOH required to prepare 250 cm3 of 0.1 N solution is

Solution:
QUESTION: 90

Which one of the following has the least magnetic moment?

Solution:
QUESTION: 91

Chromosome present in prolonged prophase in the salivary gland of Drosophila are

Solution:
QUESTION: 92

Diatoms deposits are called

Solution:
QUESTION: 93

Which is not a true amphibian animal

Solution:
QUESTION: 94

Number of peristome teeth in the capsule of Funaria is

Solution:
QUESTION: 95

A tissue made of thin-walled rectangular cells which takes part in making girth of stem or root is

Solution:
QUESTION: 96

In which one of the following the spore mother cells and elater mother cells belong to the same cell generation

Solution:
QUESTION: 97

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

Solution:
QUESTION: 98

In mongolism, the patient has

Solution:
QUESTION: 99

Haemophilia does not occur in women

Solution:
QUESTION: 100

Membranous tubules that synthesize testosterone are in

Solution:
QUESTION: 101

When does pairing/synapsis occur in meiosis?

Solution:
QUESTION: 102

Name the correct order of relative size

Solution:
QUESTION: 103

The stem cells that give rise to all red blood cells, white blood cells, and platelets are known as:

Solution:

Stem cells in the red bone marrow called hemocytoblasts give rise to all of the formed elements in blood i.e, RBCs, WBCs and platelets. If a hemocytoblast commits to becoming a cell called a proerythroblast, it will develop into a new red blood cell. The formation of a red blood cell from hemocytoblast takes about 2 days.

QUESTION: 104

Which one of the following correctly matches a Sexually Transmitted Disease (STD) with its pathogen ?

Solution:
QUESTION: 105

Basophils, eosinophils, and neutrophils are all:

Solution:
QUESTION: 106

In IVF technique, fusion of ovum and sperm occurs in :

Solution:
QUESTION: 107

Which is the correct sequence of arrangement of types of WBC in decreasing order in terms of number per mm3 of human blood?

Solution:
QUESTION: 108

Which of the following is not a phase of hemostasis?

Solution:
QUESTION: 109

This is a method of birth control :

Solution:
QUESTION: 110

Which one of the following is not a function of liver?

Solution:
QUESTION: 111

The most favoured habitat of a plant is called

Solution:
QUESTION: 112

Two glands that are responsible for secreting protein-digesting enzymes are

Solution:
QUESTION: 113

Which of the following ecosystem has the highest primary productivity?

Solution:
QUESTION: 114

Zona glomerulosa or glomerular area of adrenal cortex is involved in

Solution:
QUESTION: 115

In Pinus, male cone bears a large number of

Solution:
QUESTION: 116

Combination of apoenzyme and coenzyme produces

Solution:
QUESTION: 117

Which of these is correct statement ?

Solution:
QUESTION: 118

Enzyme hexokinase is inhibited by excess glucose 6-P. It is

Solution:
QUESTION: 119

Modern Man differs from apes in

Solution:
QUESTION: 120

Implantation of fertilised egg or young embryo occurs under the influence of

Solution:
QUESTION: 121

Lens and retina of vertebrate eyes are developed from

Solution:
QUESTION: 122

Mirabilis jalapa exhibits

Solution:
QUESTION: 123

The cross used to test whether an individual is homozygous (pure) or heterozygous (hybrid) is called

Solution:
QUESTION: 124

Mendel enunciated principles of inheritance:

Solution:
QUESTION: 125

Inflammatory response in allergy is due to release by mast cells of

Solution:
QUESTION: 126

Vaccination provides

Solution:

A vaccine is a biological preparation that provides active acquired immunity to a particular infectious disease. A vaccine typically contains an agent that resembles a disease-causing microorganism and is often made from weakened or killed forms of the microbe, its toxins, or one of its surface proteins.

Artificially acquired active immunity can be induced by a vaccine, a substance that contains antigen. A vaccine stimulates a primary response against the antigen without causing symptoms of the disease.

QUESTION: 127

True coelom is covered by

Solution:
QUESTION: 128

R-gene present on plasmid is meant for

Solution:
QUESTION: 129

Glycoproteins formed in response to viral infections are

Solution:
QUESTION: 130

What is true about T-lymphocytes in mammals?

Solution:
QUESTION: 131

Snakes do not have

Solution:
QUESTION: 132

The organism used for fermentation of lactic acid is

Solution:
QUESTION: 133

Streptomycin is produced by

Solution:
QUESTION: 134

Nitrogen fixing enzyme found in root nodules is

Solution:
QUESTION: 135

The most essential fatty acid is

Solution:
QUESTION: 136

Plants deficient in zinc, show reduced biosynthesis of growth hormone

Solution:
QUESTION: 137

Who discovered an alternate pathway of carbon dioxide fixation and is called C₄-pathway ?

Solution:
QUESTION: 138

The famale cockroach can be distinguished from the male by

Solution:
QUESTION: 139

Monotrapa is an example of

Solution:
QUESTION: 140

Chloragogen cells of Earthworm take part in

Solution:
QUESTION: 141

In which of the following plants does the stem perform the function of storage and perennation?

Solution:
QUESTION: 142

In earthworm setae occur in all segments except

Solution:
QUESTION: 143

Main excretory waste product in cockroach is

Solution:
QUESTION: 144

If a dry fruit is developed from becarpellary ,syncarpous inferior ovary with a single basally placed ovuale,the fruit would be called as

Solution:
QUESTION: 145

Ao layer of the soil is made of

Solution:
QUESTION: 146

DNA finger printing technique was first developed by

Solution:
QUESTION: 147

Electric organs occur in :

Solution:
QUESTION: 148

Which of the components of the nervous system has both autonomic and somatic divisions?

Solution:
QUESTION: 149

Aquatic plants generally have a

Solution:
QUESTION: 150

Edible part of cauliflower is

Solution:
QUESTION: 151

The cultivation of rice in India was originated in

Solution:
QUESTION: 152

When yeast ferments glucose, the products are

Solution:
QUESTION: 153

Biotechnology is

Solution:
QUESTION: 154

Some blue green algae can be used as biofertilisers because

Solution:
QUESTION: 155

What does Bt stand for popular crop of Bt cotton

Solution:
QUESTION: 156

When a natural predator (living being) is applied on some other organism to control them, this process is called

Solution:
QUESTION: 157

Which of the following organisms is used as an indicator of water quality?

Solution:
QUESTION: 158

The function of vessels /xylem is to

Solution:
QUESTION: 159

Which statement in regard to Taenia saginata is true?

Solution:
QUESTION: 160

The first hormone artifically produced by culturing bacteria is

Solution:
QUESTION: 161

Conductivity part of phloem according to Haberlandt (1914) is

Solution:
QUESTION: 162

Which one of the following is not pollutant?

Solution:
QUESTION: 163

Biotic potential is increase in population under

Solution:
QUESTION: 164

Green-house effect refers to

Solution:
QUESTION: 165

The aleurone layer in maize grain is specially rich in

Solution:
QUESTION: 166

Killing an organism for feeding is

Solution:
QUESTION: 167

The wing in Pinus seed is derived from

Solution:
QUESTION: 168

Which of the following are the most diversed molecules in the cell ?

Solution:
QUESTION: 169

Which part of a mature sperm contains mitochondria?

Solution:
QUESTION: 170

What is correct when chromosomes number in leaf cells of an angiosperms is 22?

Solution:
QUESTION: 171

Which of the following hormones does not promote homeostasis?

Solution:
QUESTION: 172

Device for self pollination is

Solution:
QUESTION: 173

Pseudopregnancy is due to

Solution:
QUESTION: 174

Germ hill is found in

Solution:

The primary oocyte lies in a large mature Graafian follicle and is surrounded by the cells of the " germ hill "

QUESTION: 175

Blood is brought to the glomerulus by the

Solution:
QUESTION: 176

The scientist who first used binomial system of nomenclature was or Binomial system of nomenclature was introduced by or the term Binomial nomenclature was coined by -

Solution:
QUESTION: 177

Low levels of sodium ions Na+ in the body result in the secretion of

Solution:
QUESTION: 178

Which of the following is produced in response to a high solute concentration in the blood?

Solution:
QUESTION: 179