Question

On destructive distillation, $1000$ kg of coal gives $P$ kg of coke, $Q$ litres of ammonia, $R$ litres of coal tar and $S$ $m^3$ of coal gas. The value of $P,Q,R$ and $S$ respectively are

• A. 700, 200, 100, 400
• B. 400, 100, 50, 200
• C. 700, 100, 50, 400
• D. 700, 400, 100, 50

Answer 1

The correct option is D

700, 400, 100, 50

When coal is subjected to destructive distillation it gives coal gas, liquor ammonia, coal tar and coke. $1000$ kg of coal gives $700$ kg of coke, $400$ litres of ammonia, $100$ litres of coal tar and $50$ $m^3$ of coal gas. Hence, the values of $P,Q,R$ and $S$ respectively are $700,400,100,50.$