question_answer

Read the given passage and fill in the blanks by choosing an appropriate option.

The process of conversion of wood into coal is called ___i___. There are three main varieties of coal which vary in their carbon content. ___ii___ has upto 96 per cent of carbon, ___iii___ has about 65 per cent carbon while ___iv___ has about 38 per cent carbon.

 

A)

(i)	(ii)	(iii)	(iv)
Destructive distillation	Lignite	Anthracite	Bituminous coal

               

B)

(i)	(ii)	(iii)	(iv)
Carbonisation	Anthracite	Lignite	Bituminous coal

               

C)

(i)	(ii)	(iii)	(iv)
Carbonisation	Anthracite	Bituminous coal	Lignite

D)

(i)	(ii)	(iii)	(iv)
Destructive distillation	Bituminous coal	Anthracite	Lignite