- (A) Insecticides (e.g. moth balls)
- (B) Unsaturated polyesters
- (C) Drug intermediates e.g. β-naphthol
- (D) All
Exam preparation MCQs with answers
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- (A) 2.4
- (B) 1.75
- (C) 0.87
- (D) 11.4
- (A) Potassium hydroxide
- (B) Cuprous chloride
- (C) Alkaline pyrogallol solution
- (D) None of these
- (A) Low temperature carbonisation
- (B) High temperature carbonisation
- (C) Medium temperature carbonisation
- (D) Heating the coal in an oven in presence of air
- (A) Increase
- (B) Decrease
- (C) Increase or decrease depending on the fuel type
- (D) Not change
- (A) Metallurgical coke
- (B) Soft coke
- (C) Very low calorific value coke oven gas
- (D) No by-products
- (A) 2.5
- (B) 0.5
- (C) 10
- (D) 20
- (A) 300
- (B) 2000
- (C) 5000
- (D) 10000
- (A) Less air for combustion
- (B) Correct amount of air for combustion
- (C) Too much air for combustion
- (D) Pulverised coal in boilers
- (A) Producer gas
- (B) Coal gas from underground gasification of coal
- (C) Refinery gases
- (D) None of these
