VITEEE PCBE Mock Test - 9


125 Questions MCQ Test VITEEE: Subject Wise and Full Length MOCK Tests | VITEEE PCBE Mock Test - 9


Description
This mock test of VITEEE PCBE Mock Test - 9 for JEE helps you for every JEE entrance exam. This contains 125 Multiple Choice Questions for JEE VITEEE PCBE Mock Test - 9 (mcq) to study with solutions a complete question bank. The solved questions answers in this VITEEE PCBE Mock Test - 9 quiz give you a good mix of easy questions and tough questions. JEE students definitely take this VITEEE PCBE Mock Test - 9 exercise for a better result in the exam. You can find other VITEEE PCBE Mock Test - 9 extra questions, long questions & short questions for JEE on EduRev as well by searching above.
QUESTION: 1

A hundred year old tree of temperate area will show

Solution:
QUESTION: 2

Ten pairs of spiracles with trachea are present in

Solution:
QUESTION: 3

Genophore/bacterial genome or nucleoid is made of

Solution:
QUESTION: 4
Robert Brown discovered
Solution:
QUESTION: 5
The division of the plant kingdom into prokaryota and eukaryota is based on the characters of
Solution:
QUESTION: 6
The highest blood pressure in the aorta occurs when the
Solution:
QUESTION: 7
Calcium gives rigidity to bones and teeth alongwith
Solution:
QUESTION: 8
International Rice Research Institute (IRRI) is located at
Solution:
QUESTION: 9
Vestigial organ of python is
Solution:
QUESTION: 10
The ecosystem of a pond is referred as
Solution:
QUESTION: 11
Which of the following can you call atavism?
Solution:
QUESTION: 12
The modern horse is known as
Solution:
QUESTION: 13
Reverse transcription was discovered by
Solution:
QUESTION: 14
tRNA has the function of
Solution:
QUESTION: 15
The Ti plasmid is often used for making transgenic plants. This plasmid is found in
Solution:
QUESTION: 16
Which contributed to the success of Mendel?
Solution:
QUESTION: 17
A pregnant woman underwent amniocentesis. An extra barr body is present in the embryo. Syndrome likely to occur in child is
Solution:
QUESTION: 18
When one gene hides the effect of another gene, the interaction factor is known as :
Solution:
QUESTION: 19
Huntington's chorea is characterised by
Solution:
QUESTION: 20
Binding of antigen to antibody is through
Solution:
QUESTION: 21
Blood group AB has
Solution:
QUESTION: 22
O blood group is universal donor because the blood has
Solution:
QUESTION: 23
A fibrous root system is adapted better than tap root system to perform the function of
Solution:
QUESTION: 24
Which of the following pair does not match?
Solution:
QUESTION: 25
The loss of which will harm the tree most?
Solution: Bark contains the phloem that carries nutrition for the plant from the leaves
QUESTION: 26
Exarch and polyarch vascular bundles occur in
Solution:
QUESTION: 27
In which one of the following pathogens do the cells of promycelium after the germination of teleutospore produce infection hyphae instead of basidiospores?
Solution:
QUESTION: 28
Hybridomas are result of
Solution:
QUESTION: 29
Noise becomes uncomfortable above
Solution:
QUESTION: 30
Which constitutes the thickening in collenchyma
Solution:
QUESTION: 31
BOD is measure of
Solution:
QUESTION: 32
Use of pesticides is problematic as
Solution:
QUESTION: 33
Protozoa reproduce by several methods. Which protozoan reproduces both by binary fission and conjugation?
Solution:
QUESTION: 34
The presence of human chorionic gonadotropin (HCG) in a woman’s urine indicates that she
Solution:
QUESTION: 35
Father of biology is
Solution:
QUESTION: 36
'Ontogeny recapitulates phylogeny'. This is
Solution:
QUESTION: 37
The importance of random accumulation of small genetic changes sufficient to explain evolution was given by
Solution:
QUESTION: 38
Phenomenon of industrial melanism proves
Solution:
QUESTION: 39
Which substance would normally be found in higher concentration in urine than in blood?
Solution:
QUESTION: 40
Which of the following would cause the kidney to produce more concentrated urine?
Solution:
QUESTION: 41

An oscillator circuit consists of an inductance of 0.5 mH and a capacitor of 20μF. The resonant frequency of the circuit is nearly

Solution:

QUESTION: 42

The penetrating power of X - rays increases with the

Solution:
QUESTION: 43

An electron and a proton have the same wave length. Which one of the following statements is correct about them?

Solution:
QUESTION: 44

A 10 μ F capacitor is charged to a potential difference of 50 V and is connected to another uncharged capacitor in parallel. Now the common potential difference 20 volt. The capacitance of second capacitor is

Solution:
QUESTION: 45

The resistance of a cell does not depend upon

Solution:
QUESTION: 46

If sky wave with a frequency of 50 MHz is incident on D-region at an angle of 30o, then angle of refraction is

Solution:
QUESTION: 47

For a metallic wire, the ratio V/i (V= the applied potential difference, i= current flowing) is

Solution:
QUESTION: 48

The resistance of a wire is 10Ω. Its length is increased by 10% by stretching. The new resistance will now be

Solution:
QUESTION: 49

A moving coil galvanometer is converted into an ammeter reading upto 0.03 A by connecting a shunt of resistance 4r across it and into an ammeter reading upto 0.06 A when a shunt of resistance r is connected across it. What is the maximum current which can be sent through this galvanometer if no shunt is used

Solution:
QUESTION: 50

An electrical meter of internal resistance 20 Ω gives a full scale deflection when one milliampere current flows through it. The maximum current, that can be measured by using three resistors of resistance 12 Ω each, in milliamperes is

Solution:
QUESTION: 51

If an electron of mass m and charge e is accelerated from rest through a potential difference V in vacuum, then its final velocity will be

Solution:

QUESTION: 52

If the rotational velocity of a dynamo armature is doubled, then induced emf will

Solution:
QUESTION: 53

The primary and secondary coils of a transformer have 50 and 1500 turns respectively. If the magnetic flux φ linked with the primary coil is given by φ = φ 0 + 4t, where φ is in weber, t is time in second and φ 0 is a constant, the output voltage across the secondary coil is

Solution:

No. of turns across primary Np = 50
Number of turns across secondary Ns = 1500
Magnetic flux linked with primary, Φ = Φ0 + 4t
∴ Voltage across the primary,

QUESTION: 54

Two coils have self inductance L1 = 4 m H and L2  = 1 m H respectively. The currents in the two coils are increased at the same rate. At a certain instant of time both coils are given the same power. If i1 and i2  are the currents in the two coils, as that instant of time respectively, then the value of i1/ i2  is

Solution:
QUESTION: 55

Which of the following is/are not electromagnetic waves?

Solution:
QUESTION: 56

Two equal charges, q each are placed at a distance of 2a, and a third charge -2q is placed at the mid point. The potential energy of the system is

Solution:
QUESTION: 57

A charge q is placed at the corner of a cube of side l. The electric flux passing through the cube is

Solution:

Eight cubes, each side l, are required to form a Gaussian surface
So that the charge q at the corner of a small cube appears at the centre of the bigger cube
According to Gauss's law, the electric flux through the bigger cubes = q/∈0 
Hence the electric flux through the given small cube = q/8∈0 

QUESTION: 58

Two equal charges q of opposite sign separated by a distance 2a constitute an electric dipole of dipole moment p. If P is a point at a distance r from the centre of the dipole and the line joining centre to this point makes an angle θ with the axis of the dipole, then potential at the point P is given by

Solution:
QUESTION: 59

The plates of a parallel plate capacitor are charged upto 200 volts. A dielectric slab of thickness 4 mm is inserted between its plates. Then to maintain the same potential difference between the plates capacitor, the distance between the plates is increased by 3.2 mm. The dielectric constant of dielectric slab is

Solution:
QUESTION: 60

Eight dipoles of charges of magnitude q are placed inside a cube. The total electric flux coming out of the cube will be

Solution:
QUESTION: 61

Five equal capacitors connected in series have a resultant capacitance of 4 μ F. The total energy stored in these, when these are connected in parallel and charged to 400V is

Solution:
QUESTION: 62

A long solenoid carrying a current produces a magnetic field B along its axis. if the current is doubled and the number of turns per cm is halved, the new value of magnetic field is

Solution:
QUESTION: 63

Neutron was discovered by

Solution:
QUESTION: 64

When the nucleus of a radioactive element emits an alpha particle, the atomic number is decreases by

Solution:
QUESTION: 65

The material used to slow down neutrons in a reactor is called

Solution:
QUESTION: 66

A photo cell is receiving light from a source placed at a distance of 1 m. If the same source is to be placed at a distance of 2m, then the ejected electron

Solution:
QUESTION: 67

The work function of a metal is 2.8 eV. Its threshold wavelength will be

Solution:
QUESTION: 68

A ray of light is incident on a plane mirror at an angle of 60o . The angle of deviation produced by the mirror is

Solution:
QUESTION: 69

A concave mirror gives an image three times as large as the object placed at a distance of 20 cm from it. For the image to be real, the focal length should be

Solution:

m = -3, m = - v u
-3 = - v -20
⇒ v = - 60 cm
Now, u = - 20, v = - 60, f = ?

QUESTION: 70

A semiconductor device which is used for detecting light intensity is called a

Solution:
QUESTION: 71

A p-n photodiode is fabricated from a semiconductor with band gap of 2.8 eV. Which of the following wavelengths it can detect?

Solution:
QUESTION: 72

Which is true about the following? I An amplifier is necessarily an oscillator too II An oscillator is necessarily an amplifier too

Solution:
QUESTION: 73

A semiconductor device is connected in a series circuit with a battery and a resistance. A current is found to pass through the circuit. If the polarity of the battery is reversed, the current drops almost to zero. The device may be

Solution:
QUESTION: 74

The reverse biasing in a p-n junction diode

Solution:
QUESTION: 75

The dominant mechanism for motion of charge carriers in forward and reverse biased silicon p-n junction are

Solution:
QUESTION: 76

In a P-type semiconductor

Solution:
QUESTION: 77

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

Solution:
QUESTION: 78

When distance between source of light and observer decreases, then the apparent frequency of light

Solution:
QUESTION: 79

Two identical light waves, propagating in the same direction, have a phase difference δ . After they superpose the intensity of the resulting wave will be proportional to

Solution:
QUESTION: 80

In Young's double slit experiment, the width of the fringes obtained with light of wavelength 6000 Angstrom is 2.0mm. The fringe width, if the entire apparatus is immersed in a liquid of refractive index 1.33, will be

Solution:

Fringe width in Young's double slit experiment β = Dλ/d
When apparatus is immersed in liquid, only wavelength of light (λ) changes
Wavelength of light is liquid,
λ' = λ/n , where n = refractive index of medium
Initial fringe width, β = Dλ/d .....(i)
Fringe width in liquid, β' = Dλ' /d .....(ii)
Dividing Equation (ii) by Equation (i), we get

QUESTION: 81

C₆H₅CHO + HCN → C₆H₅CH(CN)OH. The product would be

Solution:
QUESTION: 82

The boiling point of glycerol is more than propanol because of

Solution:
QUESTION: 83

Which does not react with Fehling solution ?

Solution:

Propanone is methyl ketone
So ketones do not react with fehling's solution

QUESTION: 84

Which of the following reagent react differently with HCHO and CH₃CHO and CH₃COCH₃

Solution:
QUESTION: 85

The reaction/method that does not give an alkane is

Solution:
QUESTION: 86

1, 3-Butadiene when treated with Br₂ gives

Solution:
QUESTION: 87

The units nanometer, fermi, angstrom and attometre arranged in decreasing order

Solution:
QUESTION: 88

The least count of an instrument is 0.01cm. Taking all precautions, the most possible error in the measurement can be

Solution:
QUESTION: 89

Carboxylic acids are more acidic than phenol and alcohol because of

Solution:
QUESTION: 90

Which of the following is a disaccharide?

Solution:
QUESTION: 91

Calorific value is in order

Solution:
QUESTION: 92

The metal present in vitamin B₁₂ is

Solution:
QUESTION: 93

The acid amide is converted into acid with evolution of nitrogen gas by

Solution:
QUESTION: 94

Which of the following salt can be produced by the reaction of CO and caustic soda ?

Solution:
QUESTION: 95

The rate, at which a substance reacts at constant temperature, depends upon its

Solution:
QUESTION: 96

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?

Solution:
QUESTION: 97

When H₂ and I₂ are mixed and equilibrium is attained, then

Solution:
QUESTION: 98

If a gas at constant temperature and pressure expands, then its

Solution:
QUESTION: 99

Which of the following is not correct?

Solution:
QUESTION: 100

A drug that is antipyretic as well as analgesic is

Solution:
QUESTION: 101

The systematic name of (CH₃)₂CH-COOH is

Solution:
QUESTION: 102

The number of possible isomers of an octahedral complex, [ Co(C2O4)2(NH3)2 ] − is :

Solution:
QUESTION: 103

The organometallic compound which is used as a catalyst in the hydrogenation of alkenes or alkynes is

Solution:
QUESTION: 104

Hydrolysis of benzonitrile gives

Solution:
QUESTION: 105

Hinsberg reagent is

Solution:
QUESTION: 106

The reagent used for the preparation of higher ethers from hologenated ethers is

Solution:
QUESTION: 107

During smelting an additional substance is added which combines with impurities to form a fusible product. It is known as

Solution:
QUESTION: 108

Which of the following is not a reducing agent ?

Solution:
QUESTION: 109

Oxidation no. of chlorine in hypochlorous acid is

Solution:
QUESTION: 110

Consider the following four electrodes
A = Cu+2 0.0001 M | Cu (s)    
B = Cu+2 0.1 M | Cu (s)    
C = Cu+2 0.01 M |Cu (s)    
D = Cu+2 0.001 M | Cu (s)    
If the standard reduction potential of Cu+2  ∕ Cu is + 0.34 V , the reduction potential (in volts) of the above electrodes follow the order

Solution:
QUESTION: 111

Sodium hexametaphosphate is known as

Solution:
QUESTION: 112

C and Si have

Solution:
QUESTION: 113

0.24 g of a volatile gas upon vapourisation gives 45 ml vapour of N.T.P. what will be vapour density of the substance ? (Density of H₂ = 0.089 gl-1)

Solution:
QUESTION: 114

Basicity of orthophosphoric acid is

Solution:
QUESTION: 115

To get n-type doped semiconductor, impurity to be added to silicon should have the following number of valence electrons

Solution:
QUESTION: 116

Which of the following has the same oxidation state as that of Cr in K₂CrO₃

Solution:
QUESTION: 117

Following eclipsed form of propane is repeated after rotation of:

Solution:
QUESTION: 118

Medicines are more effective, if they are used in

Solution:
QUESTION: 119

The white anhydrous copper sulphate decomposes to give

Solution:
QUESTION: 120

Which of the following is ionic in nature ?

Solution:
QUESTION: 121

Fill in the blank with appropriate word.
No matter what.......come our way, we should not lose our temper.

Solution:
QUESTION: 122

Find the Antonym of HINDRANCE

Solution:
QUESTION: 123

Find the synonym of AMITY

Solution:
QUESTION: 124

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

Feathering one's nest

Solution:
QUESTION: 125

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

When the train finally CAME INTO the station the lonely traveller seemed relieved.

Solution:

Related tests