1.
An element common to all acids
is
(A)
Oxygen
(B)
Hydrogen
(C)
Sulphur
(D)
Chlorine
2.
Which of the following
statements relating to sound and light is true?
(A)
Light is as form of kinetic
energy whereas sound is a form of
potential energy
(B)
Light can be reflected but sound cannot be
(C)
Light travels faster In air
than sound does
(D)
Sound travels in waves but
light does not.
3.
Radioactive substances can be
produced readily in
(A)
An electron gun
(B)
An atomic pile
(C)
A transistor
(D)
A Wilson cloud chamber
4.
The method of estimating the
age of the crust of the earth, which is now believed to be the most accurate,
makes use of the rate of
(A)
Accumulation of Sedimentary
beds
(B)
Accumulation of salt in the
ocean
(C)
Atomic disintegration (radio- activity)
(D)
Loss of heat by the earth
5.
When a given amount of air is
cooled
(A)
The amount of moisture it can
hold decreases
(B)
Its absolute humidity decreases
(C)
Its relative humidity remains
constant
(D)
Its absolute humidity increases
6.
With the present – day
advancement in medical techniques transplants are possible in all of the following except
(A)
Artery
(B)
Bone