61.
Mark the compound which possesses ionic,
covalent and co-ordinate bonds.
a)
SO₃
b)
SO₂
c)
H₂O
d)
NH₄CI
62.
Tritium is an isotope of
a)
Oxygen
b)
Hydrogen
c)
Phosphorous
d)
Nitrogen
63.
The three basic components of an atom are
a)
Protons, neutrons an ions
b)
Protons, neutrons an electrons
c)
Prodium, deuterium and tritium
d)
Protons, neutrinos and ions.
64.
Alcohol obtained in the saponification process
is
a)
Ethyl alcohol
b)
Methyl alcohol
c)
Wood spirit
d)
Glycerol
65.
The product of equivalent weight and valency of
an element is equal to
a)
Vapour density
b)
Specific heat
c)
Atomic weight
d)
Molecular weight
GENERAL SCIENCE
BIOLOGY
66.
Which of the following animals has the longest
gestation (pregnancy) period?
a)
Dolphins
b)
Elephants
c)
Camels
d)
Giraffes
67.
Which organelle in the cell, other than nucleus,
contain DNA?
a)
Endoplasmic Reticulum
b)
Golgi apparatus
c)
Lysosome
d)
Mitochondria
68.
Which one among the following groups of animals
maintains constant body temperature in changing environmental conditions?
a)
Birds
b)
Amphibians
c)
Fishes
d)
Reptiles
69.
A person feeds on rice and vegetable made up of
potato only, he is likely to suffer from
deficiency of
a)
Carbohydrate and vitamins
b)
Proteins
c)
Carbohydrate and proteins
d)
Proteins and fats
70.
. Vaseline was applied to both surfaces of the
leaves of a plant. Which of the following process/ processes would be affected?
I.
Photosynthesis
II.
Respiration
III.
Transpiration
Select the correct answer u sing
the codes given below
a)
1 and 3
b)
Only 2
c)
2 and 3
d)
All of these
ANSWERS
61.D
62.B
63.B
64.A
65. C
66.D
67.A
68.B
69.A
70.C