Objective General Knowledge

Q. Pick the odd one out
1 Nitroglycerine
2 Dynamite
3 TNT
4 DDT
Ans: 4

Q. Phosgene can be used as
1 an insecticide
2 a herbicide
3 a warfare gas
4 a defoliant
Ans: 3

Q. Phenol is a raw material used in the manufacture of
1 Perspex
2 Dacron
3 Terylene
4 Bakelite
Ans: 4

Q. Petroleum is found in
1 Igneous rock
2 Sedimentary rocks
3 Metamorphic rocks
4 Marshy land
Ans: 1

Q. People working in asbestos factories are affected by air pollution. The most affected part of their body is the
1 Eye
2 Throat
3 Lung
4 Skin
Ans: 3

Q. Permanent hardness of water is due to the presence of
1 Calcium bicarbonate
2 Magnesium bicarbonate
3 Calcium sulphate
4 Sodium bicarbonate
Ans: 3

Q. Passing a battery current through a solution of brine will produce
1 Sodium hydroxide and chlorine
2 Chlorine and sodium
3 Sodium hydroxide and oxygen
4 Chlorine and hydrogen
Ans: 1

Q. Paraffin wax used for making candles is obtained from
1 Coal
2 Petroleum
3 Seaweeds
4 Marsh gas
Ans: 2

Q. Ozone is
1 Paramagnetic
2 Diamagnetic
3 Ferromagnetic
4 Non-magnetic
Ans: 2

Q. Of the following radiations, the one most easily stopped by air is composed of
1 alpha rays
2 beta rays
3 gamma rays
4 x-rays
Ans: 1