The material A is fossil fuel which is extracted from the earth. It is said to be formed from the buried , large land plants by a very slow process B. When A is heated in the absence of air in a process called C, then it gives three products D, E, and F. The product D is used as a reducing agent in the extraction of metals the product E is used as an industrial fuel whereas the product F has been traditionally used for metalling the roads .
c) Name the processes (i) B and (ii) C.

Options

A. What are (1) fuel A, and (ii) fuel B?
B. Name (i) C (ii) D (iii) E, and (iv) F
C. What is the process of formation of F during lightning known as 2 Windows
D. Which fuel is supposed to be exhausted sooner : A or B ? pr settings to activate Windows
(E) Which fuel is mostly used for generating electricity at thermal power plants ?

Explanation

(a) (i) Petroleum (ii) Coal (b) (i) Carbon dioxide (ii) Water (iii) Sulphur dioxide (iv) Nitrogen oxides (c) Natural fixation of nitrogen (d) A (Petroleum) (e) B (Coal)