NEET Mock Test - 6 (23-02-2020)


180 Questions MCQ Test NEET Mock Test Series 2020 & Past Year Papers | NEET Mock Test - 6 (23-02-2020)


Description
This mock test of NEET Mock Test - 6 (23-02-2020) for NEET helps you for every NEET entrance exam. This contains 180 Multiple Choice Questions for NEET NEET Mock Test - 6 (23-02-2020) (mcq) to study with solutions a complete question bank. The solved questions answers in this NEET Mock Test - 6 (23-02-2020) quiz give you a good mix of easy questions and tough questions. NEET students definitely take this NEET Mock Test - 6 (23-02-2020) exercise for a better result in the exam. You can find other NEET Mock Test - 6 (23-02-2020) extra questions, long questions & short questions for NEET on EduRev as well by searching above.
QUESTION: 1

If an 8 Ω resistance are present in an a.c. series circuit, then the impedance of the circuit will be

Solution:
QUESTION: 2

The Hα line is the first member of the Balmer series of the hydrogen spectrum and it occurs due to the transition of the electron from the 3rd orbit to the 2ndorbit. If its wave length is λ , the wave length of the last member of the Balmer series will be

Solution:
QUESTION: 3

Emission of electrons in the photoelectric effect is possible, if

Solution:
QUESTION: 4

Sodium has body centred packing. Distance between two nearest atoms is 3.7 Å . The lattice parameter is:

Solution:
QUESTION: 5

Two inclined plane have same height but different lengths (and therefore different angles). If a solid sphere is allowed to roll down from the top of these inclined planes

Solution:
QUESTION: 6

What will be the ratio of the de Broglie wavelengths of proton and α particle of same energy ?

Solution:
QUESTION: 7

In a place where electric field E and magnetic field B are finite, a charged particle projected along x-axis with speed v passes undeflected and with uniform speed. We may conclude that

Solution:
QUESTION: 8

Two identical cells of the same emf and same internal resistance give the same current through an external resistance of 2 Ω, regardless of whether they are connected in series or parallel. The internal resistance of the cell is

Solution:
QUESTION: 9

What is the unit for specific resistivity ?

Solution:
QUESTION: 10

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: 11

De-Broglie equation states the

Solution:
QUESTION: 12

Three identical rings move with the same speed on a horizontal surface in a uniform horizontal magnetic field, normal to the planes of the rings. If the first slips without rolling, the second rolls without slipping and the third rolls with slipping with the same speed, then

Solution:
QUESTION: 13

Heat radiations propagate with the speed of

Solution:
QUESTION: 14

In an electromagnetic wave, the electric and magnetising fields are 100 Vm-1 and 0.265 Am-1. The maximum energy flow is

Solution:

S = E0 x H0
E0 = 100 Vm-1, H0 = 0.265 Am-1
∴ S = 100 x 0.26 = 26.5 Wm-2

QUESTION: 15

Two electric charge 12μC and − 6μC are places 20 cm apart in air. There will be a point P at which electric potential is zero on the line joining these two charges and outside, excluding the region between them. The distance of P from − 6 μ C charge is

Solution:
QUESTION: 16

An electric dipole of dipole moment p is placed in uniform electric field of strength E. If θ is the angle between p and E, then potential energy of the dipole becomes maximum, when θ is

Solution:
QUESTION: 17

A space-craft is launched in a circular orbit very close to the earth. What additional velocity should be given to the space-craft, so that it might escape from the earth's gravitational pull? (Radius of the earth = 6400 km; g = 9.8 m-s⁻2)

Solution:
QUESTION: 18

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

Solution:
QUESTION: 19

Gas exerts pressure on the walls of the container because

Solution:
QUESTION: 20

Five forces inclined at an angle of 72° to each other are acting on a particle of mass m placed at origin of co-ordinates. Four forces are of magnitude F₁ and one of F₂. Find resulting acceleration of particle

Solution:
QUESTION: 21

The net charge on a current carrying conductor is

Solution:
QUESTION: 22

In a deflection magnetometer experiment the deflections produced separately by two short bar magnets kept at the same distance are 45° and 30° . Then the ratio of the magnetic moments of the two magnets is

Solution:

For deflection magnetometer

QUESTION: 23

A magnetic needle suspended freely orients itself

Solution: In a definite direction and the direction is in the magnetic meridian...
QUESTION: 24

In streamline flow, if gravitational head is h, then pressure and kinetic heads are

Solution:
QUESTION: 25

A wire of length L and radius a rigidly fixed at one end. On stretching the other end of the wire with a force F, the increase in it length is l. If another wire of same material but of length 2L and radius 2a is stretched with a force 2F, the increase in its length will be

Solution:
QUESTION: 26

In a fission of U235 nucleus on average ----- neutrons are released.

Solution:

When U235 is bombarded by a neutron, it splits into barium,
Krypton and 2 or 3, so average 2.5 neutrons per fission

QUESTION: 27

A heavy nucleus at rest breaks into two fragments which fly off with velocities 8:1. The ratio of radii of the fragments is

Solution:
QUESTION: 28

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: 29

A body of mass 2 kg is made to oscillate with an angular frequency 4 rad-s⁻1 on a spring. The force constant of the spring is

Solution:
QUESTION: 30

Light is incident on a glass plate at an angle of 60°. If reflected and refracted rays are mutually perpendicular, then refractive index of the glass plate is

Solution:
QUESTION: 31

If the dispersive power of a lens material of focal length 20 cm is 0.08, then longitudinal chromatic aberration of the lens is

Solution:
QUESTION: 32

If the radius of the earth is suddenly contracts to half of its present value, then the duration of day will be of

Solution:
QUESTION: 33

In an orbital motion, the angular momentum vector is

Solution:
QUESTION: 34

A mass m is suspended from a string of length l and force constant K. The frequency of vibration of the mass is f₁. The spring is cut into two equal Parts and the same mass is suspended from one of the parts. The new frequency of vibration of mass is f₂. Which of the following relations between the frequencies is correct

Solution:
QUESTION: 35

Barrier potential of a P-N junction diode does not depend on

Solution:
QUESTION: 36

As the temperature of hot junction increases, the thermo emf

Solution:
QUESTION: 37

The reason of current flow in P-N junction in forward bias is

Solution:
QUESTION: 38

The amount of heat required to raise the temperature of a body through 1 K is called, its

Solution:
QUESTION: 39

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: 40

Dimensions of the following three quantities are the same

Solution:
QUESTION: 41

The relation between time the displacement for two particles is given by y₁ = 0.06 sin 2π (0.04t + φ₁) and y₂ = 0.03 sin 2π (1.04t + φ₂) The ratio of the intensity of the waves produced by the vibrations of the two particles will be

Solution:
QUESTION: 42

A transverse wave is represented by the equation y = y₀ sin 2π/λ (νt - x). for what value of λ is the maximum particle velocity equal to two times the wave velocity?

Solution:
QUESTION: 43

A machine which is 75% efficient, uses 12 joules of energy in lifting up a 1 kg mass through a certain distance. The mass is then allowed to fall through that distance. The velocity at the end of its fall is (in ms⁻1)

Solution:
QUESTION: 44

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: 45

A body at rest breaks up into 3 parts. If 2 parts having equal masses fly off perpendicularly each after with a velocity of 12 m/s, then the velocity of the third part which has 3 times mass of each part is

Solution:
QUESTION: 46

The order of reactivity of halogen acids for reaction with C₂H₅OH is

Solution:
QUESTION: 47

The appropriate reagent for the transformation

Solution:
QUESTION: 48

With increasing principle quantum number, the energy difference between adjacent energy levels in H atom

Solution:
QUESTION: 49

Isotopes of an element have different

Solution:
QUESTION: 50

Which of the following is the strongest nucleophile?

Solution:

A negatively charged nucleophile is always stronger than a neutral one

QUESTION: 51

Haloalkane in the presence of alcoholic KOH undergoes

Solution:
QUESTION: 52

The enzymes which convert glucose and fructose into ethyl alcohol is

Solution:
QUESTION: 53

What is the main reason for the fact that carboxylic acids can undergo ionization?

Solution:
QUESTION: 54

Which of the following bond has the largest bond length?

Solution:
QUESTION: 55

The structure of ICl₂⁻ is

Solution:
QUESTION: 56

For the reaction of mole of zinc dust with one mole of sulphric acid in a bomb calorimeter ,ΔU and w correspond to

Solution:
QUESTION: 57

The standard molar heat of formation of ethane ,CO₂ and water (l) are respectively -21.0,-94.1 and -68.3 Kcal mol⁻1. The standard molar heat of combustion of ethane will be

Solution:
QUESTION: 58

The equilibrium between water and its vapour, in an open-vessel

Solution:

In an open vessel, the water vapour diffuse into air and therefore, the concentration of water vapour above water surface is negligible.
The reverse process of condensation of vapour into liquid form is almost absent.
Therefore, evaporation process continues, till the entire water changes into vapour form.
Therefore, in an open vessel, the water vapour system is never in equilibrium.
Finally the whole water will diffuse into air as water vapour.

QUESTION: 59

If concentration of reactants is increased by 'x' then the k becomes

Solution:
QUESTION: 60

A Carnot engine receives heat at 227°C and exhausts at 47°C. If its efficiency is to be increased by 5 % then the engine should receive heat at

Solution:
QUESTION: 61

The heat of neutralisation of strong base and strong acid is -57.0 kJ. The heat released when 0.5 mole of HNO₃ solution is added to 0.20 moles of NaOH solution is

Solution:
QUESTION: 62

The commonly used antiseptic in cosmetics is

Solution:
QUESTION: 63

The isomers which can be converted into another form by rotation of molecules around single bond are

Solution:
QUESTION: 64

Which of the following complexes is an outer orbital complex?

Solution:
QUESTION: 65

The IUPAC name of K₃[Ir(C₂O₄)₃] is

Solution:
QUESTION: 66

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: 67

The reference electrode is made by using

Solution:
QUESTION: 68

The equivalent conductance of NaCl,HCl and C₂H₅COONa at infinite dilution are 126.45 , 426.16 and 91 ohm⁻1 cm2 eq-1. The eq.conductance of C₂H₅COOH is

Solution:
QUESTION: 69

Which of the following is a secondary pollutant?

Solution:
QUESTION: 70

Which of the following has highest conductivity?

Solution:
QUESTION: 71

The fomula of calcium chlorite is

Solution:
QUESTION: 72

If the pressure and absolute temperatre of 2 litres of CO₂ are doubles, the volume of CO₂ would become

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 catenation tendency of C, Si and Ge is in the order Ge<Si<C. The bond energies (in kJ mol⁻1) of C-C, Si-Si and Ge-Ge bonds respectively are

Solution:
QUESTION: 75

Which one of the following reacts with glass?

Solution:
QUESTION: 76

When rain is accompanied by thunderstorm, the collected rain water will have a pH value

Solution:
QUESTION: 77

Sodium carbonate cannot be used in place of ammonium carbonate for the identification of the fifth group radicals . This is because the

Solution:
QUESTION: 78

The one which is least basic is

Solution:
QUESTION: 79

Increasing order of pka values  (pKa = - log ka) pka of H2O,CH3OH and C6H5OH is :

Solution:

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

QUESTION: 80

Select incorect statement(s):

Solution:
QUESTION: 81

The best method for the separation of naphthalene and benzoic acid from their mixture is

Solution:
QUESTION: 82

Bakelite is prepared from

Solution:
QUESTION: 83

A liquid decomposes at its normal pressure. It can be purified by

Solution:
QUESTION: 84

An oxidising agent is a substance which can

Solution:
QUESTION: 85

Normality of 0.3 M H3PO4 solution is

Solution:

For acids,
Normality = molarity x basicity
Now, basicity of H3PO4 = 3
So, Normality = 0.3 x 3 = 0.9

QUESTION: 86

How much water is needed to dilute 10 ml of 10 N hydrochloric acid to make it exactly decinormal (0.1N) ?

Solution:
QUESTION: 87

When mercuric iodide is added to the aqueous solution of potassium iodide, the

Solution:
QUESTION: 88

Which of the following electrolytes is least effective in causing flocculation of ferric hydroxide sol?

Solution:
QUESTION: 89

The nature of an aqueous solution of FeCl₃ is

Solution:
QUESTION: 90

When (NH₄)₂Cr₂O₇ is heated, the gas evolved is

Solution:
QUESTION: 91

Gametes formed by meiosis are called

Solution:
QUESTION: 92

Mucus helps frog in forming

Solution:
QUESTION: 93

Atactostele is found in

Solution:
QUESTION: 94

The moss plants develop from

Solution:
QUESTION: 95

Bryophytes are dependent on water because

Solution:
QUESTION: 96

Tetrad is made of

Solution:
QUESTION: 97

A chromosome carrying the centromere, at one of the ends, is called

Solution:
QUESTION: 98

Which one does not possess RNA ?

Solution:
QUESTION: 99

If the lysosomes get ruptured in a cell which of the following can happen?

Solution:
QUESTION: 100

The term 'cell' was coined by

Solution:
QUESTION: 101

Diethyl sulphate (DES) is

Solution:
QUESTION: 102

A single recessive allele which can express its effect should occur on

Solution:
QUESTION: 103

Which of the following anemia types is an example of a genetic disorder?

Solution:
QUESTION: 104

Compared to blood our lymph has

Solution:
QUESTION: 105

If you had 10 RBCs each containing 100 molecules of hemoglobin, how many molecules of oxygen could these RBCs transport?

Solution:
QUESTION: 106

Which mineral is essential for coagulation to occur?

Solution:
QUESTION: 107

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

Solution:
QUESTION: 108

The function of copper-T is to prevent

Solution:
QUESTION: 109

Copper-T loop prevents :

Solution:
QUESTION: 110

Which of the following is not readily absorbed in the small intestine?

Solution:
QUESTION: 111

Gastrin secretion will stop when the stomach pH reaches _____.

Solution:
QUESTION: 112

Biosphere includes

Solution:
QUESTION: 113

Loss of relative biological equilibrium is due to

Solution:
QUESTION: 114

Homeostasis is the term used to describe

Solution:
QUESTION: 115

Herring bodies are found in

Solution:
QUESTION: 116

Optimum pH for enzyme trypsin is

Solution:
QUESTION: 117

Which is not true about inorganic catalysts and enzymes ?

Solution:
QUESTION: 118

The most nearest prehistoric ancestro of present man may be

Solution:
QUESTION: 119

Resin glands in Pinus are

Solution:
QUESTION: 120

Heterospory and polyembryony is found in

Solution:
QUESTION: 121

If Mendel had studied the 7 traits using a plant with 12 chromosomes instead of 14, in what way would the interpretation have been different ?

Solution:
QUESTION: 122

Mendelian recombinations are due to

Solution:
QUESTION: 123

Emasculation is a part of :

Solution:
QUESTION: 124

The part of eye acting as a diaphragm of camera is

Solution:
QUESTION: 125

Type of immunoglobulin present in colostrum/mother's milk is

Solution:
QUESTION: 126

Interferon suppresses the pathogenicity of

Solution:
QUESTION: 127

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

Solution:
QUESTION: 128

Most abundant immunoglobulin is

Solution:
QUESTION: 129

Long hollow bones connected by passages are characteristic of

Solution:
QUESTION: 130

Female Ascaris is differentiable from male is

Solution:
QUESTION: 131

A fungus that causes damage to timber resources is

Solution:
QUESTION: 132

Bacteria possess the organelle

Solution:
QUESTION: 133

Bacterial endotoxin is

Solution:
QUESTION: 134

Triglyceride consists of

Solution:
QUESTION: 135

A crop plant which can grow in nitrogen deficient soil without external supply of it is

Solution:
QUESTION: 136

Which can function as carrier in active ion absorption

Solution:
QUESTION: 137

The transfer of minerals from top soil to sub soil through soil water is called

Solution:
QUESTION: 138

A common feature of trachea of insects and that of mammals is that both

Solution:
QUESTION: 139

Number of abdominal segments of Cockroach is

Solution:
QUESTION: 140

Find out hermaphrodite organism.

Solution:
QUESTION: 141

In earthworm locomotion occurs with the help

Solution:
QUESTION: 142

Haustorial root is present in

Solution:
QUESTION: 143

Grass stem elongates by the activity of

Solution:
QUESTION: 144

Identify the plant in which the leaves of adult plant are phyllodes while the seedling leaves are not reduced

Solution:
QUESTION: 145

The plant, which bears clinging roots is

Solution:
QUESTION: 146

Sympathetic nervous system is also called

Solution:
QUESTION: 147

Hydrophyte with both hydrophytic and xerophytic traits is

Solution:
QUESTION: 148

Stem of submerged hydrophytes is soft and weak because of

Solution:
QUESTION: 149

A fish propels itself forward with its

Solution:
QUESTION: 150

The first hormone artifically produced by culturing bacteria is

Solution:
QUESTION: 151

Large number of bacteria produced from a single bacterium is called

Solution:
QUESTION: 152

Bagasse is related to the manufacture of

Solution:
QUESTION: 153

A new crop which produces long pods with four prominent wings, is

Solution:
QUESTION: 154

Mule is product of

Solution:
QUESTION: 155

Sporeine is a/an

Solution:
QUESTION: 156

Pasteurization is heating at

Solution:
QUESTION: 157

Microorganisms are grown as a layer or film on the surface of nutrient medium in

Solution:
QUESTION: 158

Given below are assertion and reason. Point out if both are true with reason being correct explanation (A), both true but reason is not correct explanation (B), assertion true but reason wrong (C), and both wrong (D), Assertion. Vascular cambium is considered as lateral meristem. Reason. It gives rise to lateral shoots

Solution:
QUESTION: 159

Root hairs develop from

Solution:
QUESTION: 160

When the missing parts are formed the phenomenon is called

Solution:
QUESTION: 161

Noniosing radiations with specific biological effects are

Solution:
QUESTION: 162

The radioactive pollution is caused by

Solution:
QUESTION: 163

The term 'bio-magnification' refers to the

Solution:
QUESTION: 164

A bird introduced from another country became a serious pest due to

Solution:
QUESTION: 165

Which is not a primary coloniser?

Solution:
QUESTION: 166

Which one is phosphoprotein ?

Solution:
QUESTION: 167

How many antipodal cells are present in polygonum type embryo sac

Solution:
QUESTION: 168

An interesting modification of flower shape for insect pollination occurs in some orchids in which a male insect mistakes the pattern on the orchid flower for the female of his species and tries to copulate with it, there by pollinating the flower. This phenomenon is called

Solution:
QUESTION: 169

Embryosac is also known as

Solution:
QUESTION: 170

Development of egg without fertilization is called

Solution:
QUESTION: 171

The function of the endometrium is to

Solution:
QUESTION: 172

Which of the following store sperm cells and eliminate those that have major genetic defects?

Solution:
QUESTION: 173

A rise in blood levels of FSH at the beginning of the ovarian cycle causes

Solution:
QUESTION: 174

The production of testosterone is regulated by

Solution:
QUESTION: 175

Sugarcane belong to the family-

Solution:
QUESTION: 176

The presence of epicalyx and Monoadelphous condition of stamens is a characteristic feature of family-

Solution:
QUESTION: 177

Filtrate enters the Bowman’s capsule by

Solution:
QUESTION: 178

Which capillaries are enclosed by Bowman’s capsule?

Solution:
QUESTION: 179

Increased levels of aldosterone cause

Solution:
QUESTION: 180

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

Solution:

Related tests