Question

Fly ash obtained from burning the coal is used to make

• A. Lamb black
• B. Coke
• C. Bricks
• D. Hard stone

Answer 1

The correct option is C

Bricks

The correct option is C.

Explanation for correct answer:

1. Fly ash obtained from burning the coal is used to make bricks which are further used for construction purposes.

Explanation for incorrect options:

Option A:

1. Lampblack is obtained by burning oil, usually coal-tar creosote, in a furnace with the draft.

Option B:

1. Coke is produced by heating coal at high temperatures.

Option D:

1. Hard stones are generally found in the earth's crust.

Final answer: Fly ash obtained from burning the coal is used to make bricks.