Question

Which of the following statements is true?

• A. Coal is the purest form of carbon.
• B. The destructive distillation of coal gives coke, tar, coal gas, etc.
• C. Peat contains 96% carbon and burns without smoke.
• D. The distribution of coal deposits is uniform in the earths’ crust.

Answer 1

The correct option is B The destructive distillation of coal gives coke, tar, coal gas, etc.

Diamond is the purest form of carbon. Coal along with carbon, contains other elements such as sulphur, phosphorus, lead, etc.
Peat is the lowest grade of coal and when burnt, only a small amount of carbon dioxide is produced as most of the combustion products are char and ash.
The distribution of dead organic matter varies in different parts of the world. Hence, this means that coal is not uniformly distributed over the earth's crust and only certain regions have high coal content.
Destructive distillation of coal gives coke, coal gas, coal tar, and ammonia liquor as the main products.