Which one of the following is agricultural effluent?
- (A) Detergents
- (B) Heavy metals
- (C) Fertilizers
- (D) Mineral acids
- (C) Fertilizers
Volatile metals are purified by:
- (A) Electrolysis
- (B) Distillation
- (C) Sublimation
- (D) Cupellation
- (B) Distillation
The nitrogen present in urea in used by plants to synthesize:
- (A) Sugar
- (B) Proteins
- (C) Fats
- (D) DNA
- (B) Proteins
Which of the following is used as a cathode?
- (A) Copper
- (B) Iron
- (C) Tungsten
- (D) Nickel
- (C) Tungsten
The soft smooth feel of the skin with after-shave lotion is due to:
- (A) Alcohol
- (B) Ethylene
- (C) Glycol
- (D) Diethyl phthalate
- (A) Alcohol
Which one of the following materials is suitable for water purification?
- (A) Asbestos
- (B) Quartz
- (C) Zeolites
- (D) Silicones
- (C) Zeolites
What is ‘Zeolite’?
- (A) Hydrated Alumino Silicate
- (B) Hydrated Calcium Sulphate
- (C) Dehydrated Alumino Silicate
- (D) Dehydrated Calcium Sulphate
- (A) Hydrated Alumino Silicate
Which one of the following is used as jet fuel?
- (A) Fuel oil
- (B) Diesel oil
- (C) Kerosene oil
- (D) Lubricating oil
- (C) Kerosene oil
Atomic number of “Nitrogen” is:
- (A) 6
- (B) 7
- (C) 8
- (D) 9
- (B) 7
Which of the following is used as a fuel in space shuttle?
- (A) Carbon dioxide
- (B) Liquid oxygen
- (C) Carbon monoxide
- (D) Liquid nitrogen
- (B) Liquid oxygen
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