VITEEE PCBE Mock Test - 1


125 Questions MCQ Test VITEEE: Subject Wise and Full Length MOCK Tests | VITEEE PCBE Mock Test - 1


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This mock test of VITEEE PCBE Mock Test - 1 for JEE helps you for every JEE entrance exam. This contains 125 Multiple Choice Questions for JEE VITEEE PCBE Mock Test - 1 (mcq) to study with solutions a complete question bank. The solved questions answers in this VITEEE PCBE Mock Test - 1 quiz give you a good mix of easy questions and tough questions. JEE students definitely take this VITEEE PCBE Mock Test - 1 exercise for a better result in the exam. You can find other VITEEE PCBE Mock Test - 1 extra questions, long questions & short questions for JEE on EduRev as well by searching above.
QUESTION: 1

Velamen takes part in

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QUESTION: 2

Larva of 'Culex' floats on surface of water with its head

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QUESTION: 3

The latest trend in plant disease control is

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QUESTION: 4

Which is a component of chlorophyll ?

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QUESTION: 5

High blood pressure can be the result of

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QUESTION: 6

Agranal chloroplasts are found in some

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QUESTION: 7

Cell organelle covered by a single unit membrane is

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QUESTION: 8

Cell recognition and adhesion occur due to biochemicals of cell membranes named

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QUESTION: 9

If the decomposers become extinct, the most severely affected would be

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QUESTION: 10

Which is a set of evidence of evolution

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QUESTION: 11

The organs which look different but having same basic principle structure and origin are known as

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QUESTION: 12

Which are not homologous?

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QUESTION: 13

Somaclonal variation can be obtained by

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QUESTION: 14

Pneumococcus experiment proves that

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QUESTION: 15

Out of 64 codons, 61 code for 20 types of amino acids. It is due to

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QUESTION: 16

The plasmid

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QUESTION: 17

Epistasis results due to

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QUESTION: 18

A pregnant woman underwent amniocentesis. An extra barr body is present in the embryo. Syndrome likely to occur in child is

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QUESTION: 19

Patients with sex-linked disorder of Duchenne's muscular dystrophy die by the age of

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QUESTION: 20

An antibody is

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QUESTION: 21

which is introduced during small pox vaccination?

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QUESTION: 22

Blood group O has

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QUESTION: 23

Prop roots are modified into adventitious roots in

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QUESTION: 24

In a flowering plant, archesporium gives rise to

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QUESTION: 25

Roots can be used for vegetative propagastion of

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QUESTION: 26

Which one is required for photosynthetic evolution of oxygen ?

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QUESTION: 27

Which one of the following substances plays an important role in biochemical defence of host plants?

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QUESTION: 28

Agriculture was originated in mesolithic age about

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QUESTION: 29

Small, thin walled elongated cells associated with sieve tube elements are

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QUESTION: 30

Taj may be destroyed by

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QUESTION: 31

In coming years, skin related disorders will become more common due to

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QUESTION: 32

A person has impaired nervous system and signs of madness due to continued intake of metal contaminated water. The metal is

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QUESTION: 33

Amoeba ingests food by :

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QUESTION: 34

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

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QUESTION: 35

Circulation of blood was discovered by and father of blood circulation is

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QUESTION: 36

Name the antibiotic used in the Lederberg's replica plating experiment

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QUESTION: 37

Hugo de Vries' contribution is

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QUESTION: 38

The scientist who proposed the first theory of evolution was

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QUESTION: 39

The inability to regulate the concentration of sodium ions in the blood could be due to improper functioning of the

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QUESTION: 40

Filtrate enters the Bowman’s capsule by

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QUESTION: 41

The potential difference V and the current I flowing through an instrument in an A.C. circuit of frequency f are given by V = 5 cos ωt volts and I = 2 sin ωt amperes (where ω = 2πf). The power dissipated in the instrument is

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QUESTION: 42

In photoelectric phenomenon, the number of photo electrons emitted depends on

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Photoelectric current depends on the intensity of incident light,
the number of photoelectrons emitted per second is directly proportional to the intensity of incident radiation.

QUESTION: 43

The order of wavelength of X - ray is

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QUESTION: 44

An air capacitor of capacity C = 10μ F is connected to a constant voltage battery of 12 volt. Now the space between the plates is filled with a liquid of dielectric constant 5. The charge that flows now from battery to the capacitor is

Solution:

C = 10 μ F
Charge in capacitor q = CV
= 10 x 12
= 120 μ C
On keeping liquid of dielectric constant5, capacity will becomes of 5 time.
∴ Charge q = 5 x 120
= 600 μ C

QUESTION: 45

The relation between Faraday constant F, electron charge e, and Avogardo Number N is

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QUESTION: 46

Consider telecommunication through optical fibres. Which of the following statements is not correct

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QUESTION: 47

A steady current is passing through a conductor of non-uniform cross-section. The net quantity of charge crossing any cross-section per second is

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QUESTION: 48

The internal resistance of a cell is the resistance of

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QUESTION: 49

For a cell, the terminal potential difference is 3.6 V, when the circuit is open. If the potential difference reduces to 3 V, when cell is connected to a resistance of 5 Ω, the internal resistance of cell is

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QUESTION: 50

When a resistance of 2 Ω is connected across the terminals of a cell, the current is 0.5 amperes. When the resistance is increased to 5 ohm, the current is 0.25 amperes. The internal resistance of the cell is

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QUESTION: 51

In an electron gun the control grid is given to negative potential relative to cathode in order to

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QUESTION: 52

In a D.C. motor induced e.m.f will be maximum

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QUESTION: 53

In an ideal transformer, the voltage and the current in the primary are 200 V, 2A and that in the secondary are 2000 V, 1A. The value of is (in A).

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QUESTION: 54

The Lenz's law gives

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QUESTION: 55

Which of the following rays are not electromagnetic waves?

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QUESTION: 56

If the electric flux entering and leaving an enclosed surface respectively is φ₁ and φ₂, the electric charge inside the surface will be

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QUESTION: 57

An electron of charge e coulomb passes through a potential difference of V volt. Its energy in joule will be

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QUESTION: 58

A hollow metal sphere of radious 10 cm is charged such that the potential on its surface is 80V. The potential at the centre of the sphere is

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QUESTION: 59

A point charge Q is placed at a distance d from the centre of an uncharged conduction sphere of radius R. The potential of the sphere is d > R :

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QUESTION: 60

In C.G.S system the capacity of a spherical conductor is numerically equal to its

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QUESTION: 61

If 4x1020  eV of energy is required to move a charge of 0.25 coluomb between two points, the p.d between them is

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QUESTION: 62

A charged particle moving in a magnetic field experiences a resultant force

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QUESTION: 63

If MO is the mass of an oxygen isotope 8O17 , Mp and Mn are the masses of a proton and a neutron, respectively, the nuclear binding energy of the isotope is

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QUESTION: 64

The radio of the radii of the nuclei 13Al27 and 52Te152  is

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QUESTION: 65

In photoelectric effect, the work function of a metal is 3.5 eV. The emitted electrons can be stopped by applying a potential of -1.2 V. Then

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QUESTION: 66

A cesium photocell, with a steady potential difference of 60 V across it, is illuminated by a bright point source of light 50 cm away. When the same light is placed 1 metre away, the photoelectrons emitted from the cell

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QUESTION: 67

In a Huygen's eye piece with an eyepiece of focal length F, the distance between the eye-piece and field lens should be

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QUESTION: 68

Chromatic and spherical aberration are absent in

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QUESTION: 69

In an n-p-n transistor

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QUESTION: 70

In carbon cycle of fusion

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QUESTION: 71

Transistor can be used as

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QUESTION: 72

The impurity to be added to get n - type semiconductor is

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QUESTION: 73

The energy gap of silicon is 1.14 eV. The maximum wavelength at which silicon will begin absorbing energy is

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QUESTION: 74

The intrinsic semiconductor becomes an insulator at

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QUESTION: 75

Electrical conductivity of a semiconductor

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QUESTION: 76

P-type semiconductor is formed when
A. As impurity is mixed in Si
B. Al impurity is mixed in Si
C. B impurity is mixed in Ge
D. P impurity is mixed in Ge

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QUESTION: 77

If the ratio of intensities of two waves causing interference be 9:4, then the ratio of maximum and minimum intensities will be

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QUESTION: 78

In young's double slit experiment, the intensity of central maximum is I. It one slit is closed, the intensity at the same place will become

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QUESTION: 79

Both light and sound waves produce diffraction. It is more difficult to observe the diffraction with light waves because

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QUESTION: 80

A wave front travels

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QUESTION: 81

Which of the following enzymes converts glucose into ethyl alcohol?

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QUESTION: 82

A compound possessing α-hydrogen atom, in the presence of dilute alkali forms β-hydroxy aldehyde. This product on heating with dilute acid forms an unsaturated crotonaldehyde. The compound is

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QUESTION: 83

Which of the following will give Cannizzaro reaction?

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QUESTION: 84

Which of the following does not give red ppt. with Fehling solution?

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QUESTION: 85

Which alkene gives the same product by the Markownikoff's and anti-Markownikoff's method

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QUESTION: 86

4.4 g of an unknown gas occupies 2.24 L of volume at standard temperature and pressure. The gas may be

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QUESTION: 87

The number of moles of sodium oxide in 620 g of it is

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QUESTION: 88

Which carbohydrates is an essential constituent of plant cells?

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QUESTION: 89

Glucose when treated with CH₃OH in the presence of dry HCl gives α and β-methylglucodsides because it contains

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QUESTION: 90

Which of the following is not present in RNA?

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QUESTION: 91

Acidic hydrolysis of acetamide gives

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QUESTION: 92

Which of the following compounds on boiling with KMnO₄ and the subsequent acidification will not give benzoic acid ?

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QUESTION: 93

The acid showing salt like character in aqueous solutions is

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QUESTION: 94

A cylinder filled with a movable piston contains liquid water in equilibrium with water vapour at 25oC. Which one of the following operations results in a decreace in the equilibrium vapour pressure ?

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QUESTION: 95

Two moles of HI was heated in a sealed tube at 440oC till the equilibrium was reached. HI was found to be 22% decomposed. The equilibrium constant for dissociation is

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QUESTION: 96

Heat exchanged in a chemical reaction at constant temperature and pressure is called

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QUESTION: 97

In which of the following reactions, heat liberated is known as standard heat of formation of CO2?

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QUESTION: 98

An alkane C7H16 is produced by the reaction of Lithium di (3-pentyl) cuperate with ethyl bromide. The structural formula of product is

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QUESTION: 99

In a closed insulated container, a liquid is stirred with a paddle to increase its temperature. In this process, which of the following is true?

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QUESTION: 100

Bartituric acid and its derivatives are well known as

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QUESTION: 101

The IUPAC name of the following compound
CH₃-C(CH₃)₂-CH = C(CH₃)₂ is

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QUESTION: 102

Both geometrical and optical isomerisms are shown by

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QUESTION: 103

One mole of complex compound Co(NH₃)₅ Cl₃ gives 3 mol of ions on dissolution in water. One mol of same complex reacts with two mol of AgNO₃ solution to form two mol of AgCl(s). The struture of complex is

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QUESTION: 104

Hydrolysis of acetonitrile in acid medium gives

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QUESTION: 105

Compound A has a molecular formula C₇H₇NO on treatment with Br₂/KOH, A gives an amine B which respond to carbylamine test. B on diazotisation and coupling with phenol give an azo dye. A can be

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QUESTION: 106

When 9.65 Coulombs of electricity is passed through a solution of silver nitrate (atomic weight of Ag = 107.87 taking as 108.0) the amount of Silver deposited is

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QUESTION: 107

Which of the following is not a strong electrolyte?

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QUESTION: 108

In which cell of the free energy of a chemical reaction is directly converted into electricity ?

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QUESTION: 109

tert-Butyl methyl ether on heating with HI of one molar concentration gives

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QUESTION: 110

The removal of gangue from the ore is called

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QUESTION: 111

According to the kinetic theory of gases, in an ideal gas, between two successive collisions a gas molecules travels

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QUESTION: 112

Lead is maximum in

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QUESTION: 113

PCl₃ reacts with water to form

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QUESTION: 114

What is hybridization of P in Pcl₅ ?

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QUESTION: 115

Which of the following substance acts as an oxidising as well as a reducing agent ?

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QUESTION: 116

The crystal system of a compound with unit cell dimensions a=0.387, b=0.387 and c=0.0504 nm and α = β = 90and γ = 120is

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QUESTION: 117

In the following structure

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QUESTION: 118

Adsorption is a phenomenon, in which a substance

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QUESTION: 119

Transition elements are

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QUESTION: 120

The first transition element is

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QUESTION: 121

Find the antonym of ACCIDENTAL.

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QUESTION: 122

Fill in the blank with appropriate word.
.......... works of reference are so valuable as the Encyclopaedia Britannica.

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QUESTION: 123

Find the Syonym of ALERT

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QUESTION: 124

Choose the alternative which best expresses the meaning of the idiom/phrase.

To pour oil in troubled water

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QUESTION: 125

Improve the sentence by choosing best alternative for capitalised part of the sentence.

Most people feel that the most important reason to recycle is ITS EMPECT on future generations.

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