Question

Q. With reference to types of coal, which of the following statements is/are correct?

Select the correct answer using the code given below:

• A.
  1 only
• B.
  1 and 3 only
• C.
  2 and 3 only
• D.
  1, 2 and 3

Answer 1

The correct option is C

2 and 3 only
Explanation:

Statement 1 is incorrect: Anthracite is the best quality of coal which carries 80 to 95 percent carbon content. It has the highest calorific value. Bituminous carries 60 to 80 percent of carbon content and a low level of moisture content.

Statement 2 is correct: Lignite is is an intermediate stage which happens during the alteration of woody matter into coal. It carries 40 to 55 percent carbon content.

Statement 3 is correct: Peat has less than 40 per cent carbon content. It is in the first stage of transformation from wood to coal. It has low calorific value and burns like wood.