The given figure represents destructive distillation of coal. Destructive distillation is the strong heating of a substance in the absence of air.

Pis processed in industries to get some useful products such as 'Q', 'R' and 'S. 'S' is obtained during the processing of P' to get 'Q, 'R' is a mixture of about 200 substances. Identify 'P', 'R' and 'S.

Options

A. P Coal Q Coal tar R Coke S Coal gas
B. P Coke Q Coal R Coal tar S Coal gas
C. P Coal Q Coke R Coal tar S Coal gas
D. P Coke Q Coal R Coal gas S Coal tar

Answer

C

Explanation

Coal is processed in industry to get some useful products such as coke, coal tar and coal gas. Thus P is coal. Coal tar is a mixture of more than 200 substances thus R is coal tar and coal gas is obtained during the processing of coal to get coke. Thus S is coal gas and Q is coke. P→ Coal Q Coke R→ Coal tar S → Coal gas