1. The monomer of polythene is
A. vinyl chloride
B. ethylene
C. ethyl alcohol
D. None of the above
2. 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
3. The luster of a metal is due to
A. its high density
B. its high polishing
C. its chemical inertness
D. presence of free electrons
4. The number of water molecules present in a drop of water (volume 0.0018 ml) at room temperature is
A. 1.568 x 103
B. 6.023 x 1019
C. 4.84 x 1017
D. 6.023 x 1023
5. The most malleable metal is
A. platinum
B. silver
C. iron
D. gold
6. The oil used in the froth floatation process is
A. coconut oil
B. olive oil
C. kerosene oil
D. pine oil
ANSWERS:
1. Answer: Option B
2. Answer: Option B
3. Answer: Option D
4. Answer: Option B
5. Answer: Option D
6. Answer: Option D
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