G.K. Practice Test: Question Set - 05
1. Nowadays many novel chemicals are being synthesized termed as xenobiotics. The unique feature of these is what they are
I. Biodegradable
II. Non-biodegradable
III. Pose on
environmental threat
IV. They are
environment friendly
- (A) I, III
- (B) II, III
- (C) I, III, IV
- (D) II, III, IV
2. Soil acidity is generally corrected by
- (A) Proper
irrigation
- (B) Adding
sodium hydroxide
- (C) Liming
- (D) Application
of fertilizers
3. Recently lead free petrol was introduced in our country because
- (A) They are not
needed now as anti-knock agents
- (B) They
tower the efficiency of the engine
- (C) They cause
less pollution
- (D) To
reduce the cost of petrol
4. Sulphur is not present in
- (A) Iron pyrites
- (B) Gypsum
- (C) Coal
- (D) Chlorapatite
5. The frequency of which of the following is the highest?
- (A) Gamma rays
- (B) Light waves
- (C) Micro waves
- (D) Radio waves
6. The purest form of water can be obtained from
- (A) A deep
tube-well
- (B) A running
stream
- (C) A hot water
spring
- (D) A heavy
shower of rain
7. The main use of salt in the diet is to
- (A) Make the
taste of food better
- (B) Produce
in small amounts the hydrochloric acid required for the digestion of food
- (C) Ease
the process of cooking
- (D) Increase
the solubility of food particles in water
8. The oil used in the froth flotation process is
- (A) Coconut oil
- (B) Olive oil
- (C) Kerosene oil
- (D) Pine oil
9. The material which can be deformed permanently by heat and pressure is called a
- (A) Thermoplastic
- (B) Thermoset
- (C) Chemical
compound
- (D) Polymer
10. The ionic radii of N3-, O2-, F- and Na+ follows the order
- (A) N3- >
O2- > F- > Na+
- (B) N3- >
Na+ > O2- > F-
- (C) Na+ >
O2- > N3- > F-
- (D) O2- >
F- > Na+ > N3-
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