Question

Match the columns
Column A
Column B
1. Hard coke
(a) Black and porous substance used in household furnaces
2. Gas carbon
3. Lampblack
(b) Manufacturing of metallic carbides
(c) Light, lustrous substance used in industrial furnaces
(d) Prepared by burning of hydrocarbons
(e) Greyish substance obtained by destructive distillation
of coal
4. Soft coke
5. Coke​

Answer 1

Required answer :-

(a) - 4.

(b) - 3.

(c) - 1.

(d) - 2.

(e) - 5.

(a) Black and porous substance used in household furnaces is Soft coke.

(b) Lampblack is manufacturing of metallic carbides.

(c) Light and lustrous substance used in industrial furnaces is hard coke.

(d) Prepared by burning of hydrocarbons is gas carbon.

(e) Coke is the Greyish substance obtained by destructive distillation of coal.

Know more :-

• Coal and Petroleum etc, are the energy sources which are exhaustible on usage.

• Example: Forests, wildlife, Wood, Coal, petroleum, minerals, etc.

• Coal is an ancient gift serving modern society. Coal has been known and used for thousands of years.

• It is one of our earliest sources of heat and light. But it became a fuel of importance only after the industrial revolution which led to an increase in demand as fuel.

Do you know that the coal obtained from the fire wood and the coal used in vehicles and factories are different?

Coal used in factories is mined from the earth's crust.

The coal obtained from the fire wood is usually called charcoal$.$

Answer 2

Answer:

(a) - 4.

(b) - 3.

(c) - 1.

(d) - 2.

(e) - 5.