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VITEEE PCBE Mock Test - 11

125 Questions MCQ Test VITEEE: Subject Wise and Full Length MOCK Tests | VITEEE PCBE Mock Test - 11

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This mock test of VITEEE PCBE Mock Test - 11 for JEE helps you for every JEE entrance exam. This contains 125 Multiple Choice Questions for JEE VITEEE PCBE Mock Test - 11 (mcq) to study with solutions a complete question bank. The solved questions answers in this VITEEE PCBE Mock Test - 11 quiz give you a good mix of easy questions and tough questions. JEE students definitely take this VITEEE PCBE Mock Test - 11 exercise for a better result in the exam. You can find other VITEEE PCBE Mock Test - 11 extra questions, long questions & short questions for JEE on EduRev as well by searching above.

QUESTION: 1

Safranin stains

A.
Lignified elements
B.
Suberised elements
C.
Pectinised walls
D.
Cellulose cell walls

Solution:

QUESTION: 2

Calcium gives rigidity to bones and teeth alongwith

A.
Pectate
B.
Carbonate
C.
Phosphate
D.
Sulphate

Solution:

QUESTION: 3

Typical 'lubb-dupp' sounds heard in heart beat are due to

A.
Closing of bicuspid and tricuspid
B.
Closing of semilunar valves
C.
Blood under pressure through aorta
D.
Closure of bicuspid-tricuspid valves followed by semilunar valves

Solution:

QUESTION: 4

Chitinous peritrophic membrane around food in cockroach is secreted by

A.
stomach
B.
midgut
C.
gizzard
D.
malpighian tubules

Solution:

QUESTION: 5

Mitochondria are absent in

A.
Bacteria
B.
Red Algae
C.
Green Algae
D.
Brown Algae

Solution:

QUESTION: 6

Which of the following is found in both prokaryotic and eukaryotic cells

A.
nucleus
B.
ribosome
C.
lysosome
D.
mitochondria

Solution:

QUESTION: 7

All bacterial cells get stained with

A.
Mercuric chloride
B.
Crystal violet
C.
Crystal violet + iodine
D.
Safranin

Solution:

QUESTION: 8

A good example of an auxin herbicide is

A.
IAA
B.
NAA
C.
2, 4-D
D.
IBA

Solution:

QUESTION: 9

The part of the earth and atmosphere supporting life is

A.
biota
B.
biome
C.
ecotone
D.
biosphere

Solution:

QUESTION: 10

Homologous organs have

A.
Similar origin with dissimilar functions
B.
Similar origin and structure but dissimilar functions
C.
Dissimilar origin but similar functions
D.
Dissimilar origin and dissimilar structures

Solution:

QUESTION: 11

Half of radioactive uranium is... billion years

A.
4.5
B.
10
C.
1
D.
1.2

Solution:

QUESTION: 12

The sequence in evolution of horse was

A.
Equus, Eohippus, Mesohippus, Merychippus
B.
Eohippus, Mesohippus, Merychippus, Equus
C.
Mesohippus, Eohippus, Merychippus, Equus
D.
Merychippus, Eohippus, Equus, Mesohippus

Solution:

QUESTION: 13

Gene and cistron are sometimes used as synonyms because

A.
One gene contains one cistron
B.
One gene contains many cistrons
C.
One gene contains no cistrons
D.
One cistron contains many genes

Solution:

QUESTION: 14

In DNA, when AGCT occur, their association is as per which of the following pair ?

A.
AG-CT
B.
AC-GT
C.
AT-GC
D.
AG-CU

Solution:

QUESTION: 15

PCR was developed by

A.
Kary Mullis
B.
E. Southern
C.
Francis Collins
D.
James D. Watson

Solution:

QUESTION: 16

Alleles represent

A.
Different forms of a gene
B.
Same loci on homologous chromosomes
C.
Two or more forms
D.
All the above

Solution:

QUESTION: 17

If an organism is crossed with homozygous recessive individual, it is called :

A.
back cross
B.
test cross
C.
monohybrid cross
D.
simple cross

Solution:

QUESTION: 18

Gene for sickle cell anaemia is carried by

A.
Sex cells
B.
Sex chromosomes
C.
Autosomes
D.
Bone cells

Solution:

QUESTION: 19

Rh⁻ mother carries R⁺ foetus. The foetus is at a risk of disease called

A.
Haemophilia
B.
Haemolytic disease
C.
Tuberculosis
D.
Syphilis

Solution:

QUESTION: 20

Duchenne's muscular dystrophy is a

A.
Dominant sex-linked disorder
B.
Recessive sex-linked disorder
C.
Dominant autosomal disorder
D.
Recessive autosomal disorder

Solution:

QUESTION: 21

AIDS related complex or ARC is

A.
Initial form of AIDS
B.
Not linked to AIDS
C.
Severe form of AIDS
D.
None of the above

Solution:

QUESTION: 22

A person with antigen 'B' in RBC and antibodies 'a' in the plasma belongs to the blood group

A.
A
B.
B
C.
AB
D.
O

Solution:

QUESTION: 23

The phenomenon of Anisophylly where 2 sifferent sizes of leaves are found is exhibited in which one of the followig plants

A.
Ranunculus aquatalis
B.
Limnophila heterophyllum
C.
Cabomba stellaris
D.
None of them

Solution:

QUESTION: 24

Velamen is present in

A.
Parasitic roots
B.
Assimilatory roots
C.
Epiphytic roots
D.
Fusiform roots

Solution:

QUESTION: 25

Monocot stems differ from dicot stems in that

A.
In cross section the vascular bundles of monocots have a complex
B.
In cross section the vascular bundles of monocots are arranged in a circle, whereas in dicots the vascular bundles have a complex arrangement
C.
Monocot stems have parallel venation, whereas dicot stems have branched venation
D.
Monocot stems have vascular bundles, whereas dicot stems do not have vascular bundles

Solution:

QUESTION: 26

Cheese types are classified on the basis of

A.
flavour
B.
colour
C.
texture
D.
all above

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?

A.
Ustilago scitaminae
B.
Tilletia foetida
C.
Tilletia tritici
D.
Ustilago tritici

Solution:

QUESTION: 28

Assertion. In bacteria photosynthesis occurs by utilising wavelength longer than 700 mm. Reason. Reaction center is B₈₉₀

A.
(A)
B.
(B)
C.
(C)
D.
(D)

Solution:

QUESTION: 29

Bicollateral bundles occur in the stem of

A.
Liliaceae
B.
Cruciferae
C.
Cucurbitaceae
D.
Malvaceae

Solution:

QUESTION: 30

Foul smell in the water bodies of tanks, ponds etc, is due to

A.
aerobiosis
B.
anaerobiosis
C.
psammophytes
D.
biological magnification

Solution:

QUESTION: 31

Result of ozone hole is

A.
Green house effect
B.
Global warming
C.
Acid rain
D.
UV radiations reach the earth

Solution:

QUESTION: 32

Green-house effect is due to

A.
CO
B.
CO₂
C.
NH₃
D.
PO₄

Solution:

QUESTION: 33

In Trypanosoma gambiense :

A.
Reproduction is by multiple fission
B.
There are two nuclei, a micronucleus and a macronucleus
C.
There are two locomotory organelles, a flagellum and an undulating membrane
D.
Tsetse fly has no role to play in life cycle

Solution:

QUESTION: 34

Which one has the capacity to reproduce without fertilization of eggs?

A.
Spider
B.
Crow
C.
Honey bee
D.
Earthworm

Solution:

QUESTION: 35

Size of TMV is

A.
300 nm long and 18 nm diameter
B.
100 nm long and 20 nm diameter
C.
50 nm long and 10 nm diameter
D.
500 nm and 300 nm diameter

Solution:

QUESTION: 36

Hexaploid Wheat developed through

A.
Hybridomas
B.
Chromosome doubling
C.
Hybridisation
D.
Hybridisation and chromosome doubling

Solution:

QUESTION: 37

Mule is a product of

A.
Mutation
B.
Breeding
C.
Intraspecific hybridisation
D.
Interspecific hybridisation

Solution:

QUESTION: 38

Which is related to reproductive isolation?

A.
Genetic isolation
B.
Behavioural isolation
C.
Temporal isolation
D.
All the above

Solution:

QUESTION: 39

Movement of fluids from the glomerulus’s to Bowman’s capsule is due to

A.
Osmosis
B.
Secretion
C.
Active transport
D.
Pressure filtration

Solution:

QUESTION: 40

Where in the nephron does pressure filtration of the blood occur?

A.
Loop of Henley
B.
Collecting duct
C.
Proximal tubule
D.
Bowman’s Capsule

Solution:

QUESTION: 41

Electrons ejected from the surface of a metal, when light of cartain frequency is incident on it, are stopped fully by a retarding potential of 3 volts. Photo electric effect in this metallic surface begins at a frequency 6 x 10¹⁴ s^-1 . The frequency of the incident light in s^-1 is [ Planck′s constant = 6.4 x 10^-³⁴ J − sec ; charge on the electron = 1.6 x 10^-19C ]

A.
7. 5 x 10¹³
B.
13.5 x 10¹³
C.
13.5 x 10¹⁴
D.
7.5x10¹⁵

Solution:

According to Einstein's Photo electric equation
hv = hv₀ + K.E = hv₀ + ev₀
⇒ v₀ = v₀ + ev₀ /h
⇒' v₀ = 13.5 x10¹⁴ Js^-1

QUESTION: 42

In a transformer, the number of turns in primary coil and secondary coil are 5 and 4 respectively. If 240 V is applied on the primary coil, then the ratio of current in primary and secondary coil is

A.
4 : 5
B.
5 : 4
C.
5 : 9
D.
9 : 5

Solution:

QUESTION: 43

A 10 μ F capacitor and a 20 μ F capacitor are connected in series across 200 V supply line. The charged capacitors are then disconnected from the line and reconnected with their positive plates together and negative plates together and no external voltage is applied. What is the potential difference across each capacitor?

A.
800/9 volt
B.
800/3 volt
C.
400 volt
D.
200 volt

Solution:

C₁ = 10 μF , C₂ = 20 μF

QUESTION: 44

The velocity of helium nucleus travelling in curved path in a magnetic field is v. The velocity of proton moving in the same curved path, in the same magnetic field is

A.
4v
B.
2v
C.
v
D.
V/2

Solution:

QUESTION: 45

The quantity of electricity needed to liberate one gram equivalent of an element is

A.
1 ampere
B.
96500 ampere
C.
96500 coulomb
D.
96500 Faraday

Solution:

QUESTION: 46

A laser beam is used for carrying out surgery because it

A.
is highly monochromatic
B.
is highly coherent
C.
is highly directional
D.
can be sharply focussed

Solution:

As the laser beam is highly monochromatic, directional and coherent, it can be sharply focussed.
Therefore it is used for carrying out surgery

QUESTION: 47

A galvanometer of 25 Ω resistance can read a maximum current of 6mA. It can be used as a voltmeter to measure a maximum of 6 V by connecting a resistance to the galvanometer. Identify the correct choice in the given answers

A.
1025 Ω in series
B.
1025 Ω in parallel
C.
975 Ω in series
D.
975 Ω in parallel

Solution:

QUESTION: 48

An electrical cable having a resistance of 0.2 Ω delivers 10 kW at 200 V.D.C. to a factory. What is the efficiency of transmission?

A.
65%
B.
75%
C.
85%
D.
95%

Solution:

QUESTION: 49

A galvanometer of resistance of 98 Ω is shunted by a resistance of 2 Ω . The fraction of the total current that passes through the galvanometer is

A.
0.02 A
B.
0.2 A
C.
2 A
D.
20 A

Solution:

QUESTION: 50

The electrical resistance of a mercury column in a cylindrical container is R. When the same mercury is poured into another cylindrical container twice the radius of the first, then resistance of mercury column is

A.
R/2
B.
R/4
C.
R/8
D.
R/16

Solution:

QUESTION: 51

The curve drawn between velocity and frequency of photon in vacuum will be a

A.
Straight line parallel to frequency axis
B.
Straight line passing through origin and making an angle 45^o with frequency axis
C.
Straight line parallel to velocity axis
D.
Hyperbola

Solution:

QUESTION: 52

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

A.
When motor starts rotating
B.
When motor takes maximum speed
C.
When speed of motor gradually increases
D.
When motor is switched off

Solution:

QUESTION: 53

The p.d. across an instrument in an A.C. circuit of frequency f is V and the current flowing through it is I such that V=5 cos 2 π ft amp. The power dissipated in the instrument is

A.
Zero
B.
10 watt
C.
5 watt
D.
2.5 watt

Solution:

QUESTION: 54

Energy needed to establish an alternating current I in a coil of self inductance L is

A.
LdI/dt
B.
Zero
C.
1/2 IL²
D.
1/2 LI²

Solution:

E = 1/2 LI²

QUESTION: 55

According to Maxwell's hypothesis, a changing electric field gives rise to

A.
an e.m.f
B.
electric current
C.
magnetic field
D.
pressure radiant

Solution:

QUESTION: 56

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

A.
16 e ∕ ε_o
B.
8 e ∕ ε_o
C.
e ∕ ε_o
D.
Zero

Solution:

QUESTION: 57

Potential energy of two equal positive charges 1 μ C each held 1 m apart in air is

A.
9 x 10^-3 J
B.
zero
C.
9 x 10^-3 J eV
D.
1 J

Solution:

QUESTION: 58

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

A.
V/e
B.
1 e V
C.
e/V
D.
V

Solution:

QUESTION: 59

If n capacitors each of capacitance C are connected in series with a battery of V volt, then electrostatic energy stored in all the capacitors will be

A.
nCV²
B.
1/4 nCV²
C.
1/2n CV²
D.
None of these

Solution:

The equivalent capacitance C_s of these series-connected capacitors is
1/C_s = 1/C + 1/C + 1/C ..... n times = n C
∴ C_s = C/n
Energy stored in all capacitors = 1/2 C_sV² = 1/2 C/n V² = 1/2n CV²

QUESTION: 60

A doubly ionised He⁺² atom travels at right angles to a magnetic field of induction 0.4T at a velocity of 10⁵ m s^-1 describing a circle of radius r. A proton travelling with same speed in the same direction in the same field will describe a circle of radius

A.
r/4
B.
r/2
C.
r
D.
2r

Solution:

QUESTION: 61

Figure shows a solid hemisphere with a charge of 5nC distributed uniformly through its volume. The hemisphere lies on a plane and point P is located on the plane, along a radial line from the centre of curvature at distance 15cm. The electric potential at point P due to the hemisphere is:

A.
150V
B.
300V
C.
450V
D.
600V

Solution:

QUESTION: 62

A current carrying coil when freely suspended will allign itself

A.
parallel to the magnetic meridian
B.
perpendicular to the magnetic meridian
C.
at an angle of 45^o to the magnetic meridian
D.
Any of the above positions

Solution:

QUESTION: 63

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

A.
Moderator
B.
Coolent
C.
Shield
D.
Micron

Solution:

QUESTION: 64

Absorption of X-Rays is maximum in which of the following material sheet of same thickness?

A.
Cu
B.
Au
C.
Be
D.
Pb

Solution:

QUESTION: 65

The source of stellar energy is

A.
Nuclear fission
B.
Nuclear fusion
C.
Excitation of electrons
D.
Thermionic emission

Solution:

QUESTION: 66

The kinetic energy of photo-electrons depends upon the

A.
Intensity of incident light
B.
The difference between the frequency of the incident light and the threshold frequency
C.
The sum of the frequency of incident light and threshold frequency
D.
The ratio of the frequency of light used and the threshold frequency

Solution:

QUESTION: 67

The Figure shows a plot of photo current versus anode potential for a photo sensitive surface for three different radiations. Which one of the following is a correct statement?

A.
Curves (a) and (b) represent incident radiations of same frequency but of different intensities.
B.
Curves (b) and (c) represent incident radiations of different frequencies and different intensities.
C.
Curves (b) and (c) represent incident radiations of same frequency having same intensity.
D.
Curves (a) and (b) represent incident radiations of different frequencies and different intensities.

Solution:

QUESTION: 68

The splitting of white into several colours on passing through a glass prism is due to

A.
Refraction
B.
Reflection
C.
Interference
D.
Diffraction

Solution:

QUESTION: 69

A ray is incident on an equilateral prism of μ = 2 such that ray inside the prism goes parallel to the base. Find angle of minimum deviation?

A.
90^o
B.
120^o
C.
60^o
D.
45^o

Solution:

QUESTION: 70

Which of the following is not a transducer?

A.
loudspeaker
B.
microphone
C.
amplifier
D.
all of these

Solution:

QUESTION: 71

In an insulator the energy gap between conduction and the valence band is about

A.
1 eV
B.
0.5 eV
C.
10 eV
D.
100 eV

Solution:

QUESTION: 72

A rectifier converts

A.
light energy into electrical energy
B.
high frequency into low frequency
C.
alternating current into direct current
D.
mechanical energy into electric energy

Solution:

QUESTION: 73

At room temperature, a P-type semiconductor has

A.
Large number of holes and few electrons
B.
Large number of free electrons and few holes
C.
Equal number of free electrons and holes
D.
No electrons or holes

Solution:

QUESTION: 74

When a P-N junction diode is forward biased potential barrier

A.
remain same
B.
decreases
C.
increases
D.
may increase or decrease

Solution:

QUESTION: 75

In a common base amplifier circuit, calculate the change in base current if that in the emitter current is 2 mA and α = 0.98

A.
0.04 mA
B.
1.96 mA
C.
0.98 mA
D.
2 mA

Solution:

QUESTION: 76

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

A.
drift in forward bias, diffusion in reverse bias
B.
diffusion in forward bias, drift in reverse bias
C.
diffusion in both forward and reverse bias
D.
drift in both forward and reverse bias

Solution:

QUESTION: 77

In Young's experiment of double slit, the intensity of central bright band is ---- times the individual intensities of the interfering waves

A.
2
B.
3
C.
5
D.
4

Solution:

QUESTION: 78

In soap bubble, colouration is obtained when illuminated by white light due to

A.
diffraction
B.
scattering
C.
refraction
D.
interference

Solution:

QUESTION: 79

If the two slits in Young's experiment have width ratio 1:4, the ratio of intensity at maxima and minima in the interference pattern in

A.
3 : 1
B.
1 : 3
C.
9 : 1
D.
1 : 9

Solution:

QUESTION: 80

A wave front travels

A.
Parallel to the rays
B.
Perpendicular to the rays
C.
Both A and B
D.
None of these

Solution:

QUESTION: 81

Ethyl alcohol is industrially prepared from ethylene by

A.
Permanganante oxidation
B.
Catalytic reduction
C.
Absorbing in H₂SO₄ followed by hydrolysis
D.
Fermentation

Solution:

QUESTION: 82

The product formed by the reaction of chlorine with benzaldehyde in the absence of a catalyst is

A.
Chlorobenzene
B.
Benzyl chloride
C.
Benzoyl chloride
D.
o-Chlorobenzaldehyde

Solution:

QUESTION: 83

The product acetal is produced by reacting alcohol in the presence of dry HCl with

A.
Acetaldehyde
B.
Ketone
C.
Carboxylic acid
D.
Ether

Solution:

QUESTION: 84

Schiff's reagent is

A.
Alkine phenolphthalein
B.
Methyl red
C.
Rosaniline hydrochloride
D.
Red litmus

Solution:

QUESTION: 85

Pure methane can be produced by

A.
Wurtz reaction
B.
Kolbe's electrolytic method
C.
Soda-lime decarboxylation
D.
Reduction with H₂.

Solution:

QUESTION: 86

Ozonolysis of C₇H₁₄ gave 2-methyl-3-pentanone toluene. The alkene is

A.
2-Ethyl-3-methyl-1-butene
B.
3-Ethyl-2-methyl-3-butene
C.
2,5-Dimethyl-3, 4-dimethylhex-3-ene
D.
3-Ethyl-2-methyl-1-butene

Solution:

QUESTION: 87

The unit for electric current is

A.
ohm
B.
volt
C.
ampere
D.
coulomb

Solution:

QUESTION: 88

Heterolytic cleavage of a covalent bond gives only

A.
Cationic species
B.
Anionic species
C.
Both the above
D.
Free radicals

Solution:

QUESTION: 89

Ascorbic acid is a chemical name of

A.
Vitamin D
B.
Vitamin A
C.
Vitamin C
D.
Vitamin B₆

Solution:

QUESTION: 90

Amino acids are produced on hydrolysis of

A.
nucleic acids
B.
carbohydrates
C.
fats
D.
proteins

Solution:

QUESTION: 91

Carbohydrates are used by body mainly

A.
for obtaining vitamins
B.
as a source of energy
C.
for all its development needs
D.
for building muscles

Solution:

QUESTION: 92

What will happen if LiAlH₄ is added to an ester ?

A.
Two units of alcohol are obtained
B.
One unit of alcohol and one unit of acid is obtained
C.
Two units of acids are obtained
D.
None of these

Solution:

QUESTION: 93

Ethyl isocyanide on acidic hydrolysis generates

A.
Ethylamine salt and methanoic acid
B.
Propanoic acid and ammonium salt
C.
Ethanoic acid and ammonium salt
D.
Methyl amine salt and ethanoic acid

Solution:

QUESTION: 94

Carboxylic acids are more acidic than phenol and alcohol because of

A.
intermolecular hydrogen bonding
B.
formation of dimers
C.
highly acidic hydrogen
D.
resonance stabilization of their conjugate base

Solution:

QUESTION: 95

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

A.
0.282
B.
0.0796
C.
0.0199
D.
1.99

Solution:

QUESTION: 96

At certain temperature, 50% of HI is dissociated into H₂ and I₂, the equilibrium constant is

A.
1.0
B.
3.0
C.
0.5
D.
0.25

Solution:

QUESTION: 97

For a system in equilibrium, ∆G=0, under conditions of constant

A.
temperature and pressure
B.
temperature and volume
C.
pressure and volume
D.
energy and volume

Solution:

QUESTION: 98

If an endothermic reaction is non-spontaneous at freezing point of water and becomes feasible at its boiling point, then

A.
∆H is -ve, ∆S is +ve
B.
∆H and ∆S both are +ve
C.
∆H and ∆S both are -ve
D.
∆H is +ve and ∆S is -ve

Solution:

QUESTION: 99

What is the entropy change (in J K^-1 mol^-1), when one mole of ice is converted into water at 0^oC? (The enthalpy change for the conversion of ice to liquid water is 6.0kJ mol^-1 at 0^oC)

A.
2.013 J K^-1 mol^-1
B.
2.198 J K^-1 mol^-1
C.
21.98 J K^-1 mol^-1
D.
20.13 J K^-1 mol^-1

Solution:

QUESTION: 100

The commonly used antiseptic in cosmetics is

A.
hexa chlorophene
B.
hydroxy benzene
C.
tri chloromethane
D.
hexa bromobenzene

Solution:

QUESTION: 101

Which of the following has sp² hybridisation ?

A.
C₂H₆
B.
C₂H₄
C.
BeCl₂
D.
C₂H₂

Solution:

QUESTION: 102

The co-ordination no. and oxidation no. of Cr in K₃[Cr(C₂O₄)₃] are respectively

A.
3 and o
B.
3 and +3
C.
4 and -2
D.
6 and +3

Solution:

QUESTION: 103

The reaction takes place with

A.
Decrease in magnetic moment
B.
Increase in magnetic moment
C.
Decrease in coordination number
D.
Increase in coordination number

Solution:

QUESTION: 104

Hydrolysis of benzonitrile gives

A.
Benzylamine
B.
Aniline
C.
Benzoic acid
D.
Benzene

Solution:

QUESTION: 105

Which of the following reagent can be used to convert benzene diazonium chloride into benzene ?

A.
CH₃OH
B.
H₃PO₂
C.
Br₂-H₂O
D.
LiAlH₄

Solution:

QUESTION: 106

At cathode ,the electrolysis of aqueous Na₂SO₄ gives

A.
Na
B.
H₂
C.
SO₃
D.
SO₂

Solution:

QUESTION: 107

Faraday constant

A.
is a numerical constant
B.
depends on equivalent
C.
depends upon the current passed
D.
depends on the number of electrons

Solution:

QUESTION: 108

Standard electrode potential of three metals A,B and C are + 0.5 V, -3.0 and -1.2 V respectively. The reducing power of these metals are

A.
B > C > A
B.
A > B > C
C.
C > B > A
D.
A > C > B

Solution:

QUESTION: 109

Ethyl chloride is converted into diethyl ether by

A.
Wurtz reaction
B.
Grignard reaction
C.
Perkin's reaction
D.
Williamson's synthesis

Solution:

QUESTION: 110

Which of the following imparts violet colouration to the non-luminous flame of Bunsen burner?

A.
NaCl
B.
KCl
C.
BaCl₂
D.
CaCl₂

Solution:

QUESTION: 111

A sample of gas has a volume of 0.2 lit measured at 1 atm pressure and 0^oC. At the same pressure, but at 273^oC its volume will become

A.
0.1 litre
B.
0.4 litre
C.
0.8 litre
D.
0.6 litre

Solution:

QUESTION: 112

An alloy which does not contain copper is

A.
Solder
B.
Brass
C.
Bronze
D.
Bell metal

Solution:

QUESTION: 113

PH₃, the hydride of phosphorus is

A.
Metallic
B.
Non-metallic
C.
Ionic
D.
Covalent

Solution:

QUESTION: 114

Which of the following is an acid ?

A.
Ca(OH)₂
B.
P(OH)₃
C.
NH₄OH
D.
NaOH

Solution:

QUESTION: 115

Consider the reaction, Zn + Cu²⁺ → Zn²⁺ + Cu. With reference to the above, which one of the following is the correct statement?

A.
Zn is reduced to Zn²⁺
B.
Zn is oxidised to Zn²⁺
C.
Zn²⁺ is oxidised to Zn
D.
cu²⁺ is oxidised to cu

Solution:

QUESTION: 116

Following eclipsed form of propane is repeated after rotation of:

A.
60^o
B.
120^o
C.
180^o
D.
360^o

Solution:

QUESTION: 117

A colloidal solution of a liquid, in a solid, is termed as

A.
sol
B.
gel
C.
aerosol
D.
emulsion

Solution:

QUESTION: 118

Which of the following is ferroelectric compound ?

A.
BaTiO₃
B.
K₄ [Fe(CN)₆]
C.
Pb₂O₃
D.
None of these

Solution:

QUESTION: 119

The transition metals have a less tendency to form ions due to

A.
High ionisation energy
B.
Low heat of hydration of ions
C.
High heat of sublimation
D.
All of the above

Solution:

QUESTION: 120

Reaction of zinc with cold and very dil. HNO₃ gives

A.
Zn(NO₃)₂ + N₂O
B.
Zn(NO₃)₂ + NO
C.
Zn(NO₃)₂ + NH₄NO₃
D.
Zn(NO₃)₂ + NO₂

Solution:

QUESTION: 121

Find the Antonym of LEAP

A.
Plunge
B.
Sink
C.
Immerse
D.
Fall

Solution:

QUESTION: 122

Find the Synonym of EXPLICIT

A.
Clear
B.
Exciting
C.
Indefinite
D.
Refined

Solution:

QUESTION: 123

Fill in the blank with appropriate word.
The country needs a.......government to tackle the challenges it faces today.

A.
sustained
B.
stable
C.
stationary
D.
stagnant

Solution:

QUESTION: 124

Out of the given alternatives, choose the one which can be substituted for the given capitalised word.

The rebels HELD OUT for about a month.

A.
bargained
B.
resisted
C.
ratreated
D.
waited

Solution:

QUESTION: 125

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

Not till he got home HE DID REALISE that he had lost his keys in the theatre.

A.
did he realise
B.
he did not realise
C.
he realised
D.
No improvement

Solution:

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Safranin stains

Lignified elements

Suberised elements

Pectinised walls

Cellulose cell walls

Calcium gives rigidity to bones and teeth alongwith

Pectate

Carbonate

Phosphate

Sulphate

Typical 'lubb-dupp' sounds heard in heart beat are due to

Closing of bicuspid and tricuspid

Closing of semilunar valves

Blood under pressure through aorta

Closure of bicuspid-tricuspid valves followed by semilunar valves

stomach

midgut

gizzard

malpighian tubules

Bacteria

Red Algae

Green Algae

Brown Algae

nucleus

ribosome

lysosome

mitochondria

Mercuric chloride

Crystal violet

Crystal violet + iodine

Safranin

IAA

NAA

2, 4-D

IBA

biota

biome

ecotone

biosphere

Similar origin with dissimilar functions

Similar origin and structure but dissimilar functions

Dissimilar origin but similar functions

Dissimilar origin and dissimilar structures

4.5

10

1

1.2

Equus, Eohippus, Mesohippus, Merychippus

Eohippus, Mesohippus, Merychippus, Equus

Mesohippus, Eohippus, Merychippus, Equus

Merychippus, Eohippus, Equus, Mesohippus

One gene contains one cistron

One gene contains many cistrons

One gene contains no cistrons

One cistron contains many genes

AG-CT

AC-GT

AT-GC

AG-CU

Kary Mullis

E. Southern

Francis Collins

James D. Watson

Different forms of a gene

Same loci on homologous chromosomes

Two or more forms

All the above

back cross

test cross

monohybrid cross

simple cross

Sex cells

Sex chromosomes

Autosomes

Bone cells

Haemophilia

Haemolytic disease

Tuberculosis