Question

7. The method used for obtaining different components of coal.
(a)distillation
(b)fractional distillation
(c )destructive distillation​

Answer 1

Answer:

Destructive Distillation

Explanation:

Destructive distillation of coal is carried out by heating coal strongly to 1000 °C in the absence of air. It yields various useful organic and inorganic products. The products obtained and their uses are listed below:

1. Coke: (a) It is used metal from ores (b) it is used to manufacture producer gas and water gas.

2. Coal gas: It was earlier used for domestic cooking and lightning, but is not much used now.

3. Coal tar: used to make pesticides, explosives, perfumes, etc.

4. Ammonium compounds: making nitrogenous fertilizers.