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Chemistry
1
...
Bar is a unit of
(a) pressure
(b) force
(c) energy
(d) frequency
3
...
Who among the following proposed that atom is indivisible?
(a) Dalton
(b) Berzelius
(c) Rutherford
(d) Avogadro
5
...
J
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The word ‘insolation’ means
(a) Matters which insulates
(b) Incoming solar radiation
(c) Insoluble matters
(d) None of the above
7
...
Indicate the correct arrangement for electromagnetic radiation in
order of their increasing wavelength(a) Visible, infrared, microwave, X- rays
(b) X – rays, infrared, visible, microwave
(c) Microwave, infrared, visible, X – rays
(d) X- rays, visible, infrared, microwave
9
...
Which electro magnetic radiation is emitted by radioactive
substance(a) Gamma Rays
(b) Radio waves
(c) Micro waves
(d) x – ray
11
...
Isobars are lines displaying areas of equal(a) Humidity
(b) Temperature
(c) Rainfall
(d) Atmospheric pressure
13
...
D
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J Thomson
(c)`Marie Curie
(d) Pierre Curie

14
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Heavy water is used as a coolant in nuclear reactors Heavy
water is
(a) Water rich in minerals
(b) Ozonized water
(c) Water containing minerals of heavy metal
(d) Water containg heavy isotope of hydrogen
16
...
Neclear fission is caused by the impact of –
(a) Neutrons
(b) Protons
(c) Deuteron
(d) Electron
18
...
In nuclear raeactors the speed of neutrons is slowed down by –
(a) heavy water
(b) ordinary water
(c) zinc rods
(d) moten caustic soda
20
...
What was the fissionable material used in the bombs dropped
at Nagasaki (Japan) in the years 1945?
(a) Sodium
(c) Potassium
(c) Plutonium
(d) Uranium
22
...
Cobalt – 60 is commonly used in radiation therapy because it
emits(a) α – rays
(b) beta rays
(c) Gamma ray
(d) X – rays
24
...
The acid used in eye wash is
(a) Oxalic acid
(b) nitric acid
(c) Boric acid
(d) None
26
...
Hydrochloric acid is also known as
(a) Garlic acid
(b) Picric acid

(c) Muriatic acid
(d) Chloric acid
28
...
HCI + 1 part of con
...
HCI + 1 part of con
...
H2SO4 + 1 part of con
...
Rate of diffusion of a gas is –
(a) Directly proportional to its density
(b) Directly proportional to its molecular mass
(c) Directly proportional to the square of its molecular mass
(d)

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