Question

The substance W is a fossil fuel. It occurs deep below the ground in certain areas on the earth. Another fossil fuel X is found trapped above the deposits of W. When W is subjected to a process called Y, then a number of different products are collected at different temperature ranges which are put in different uses. A special grade of product Z obtained in this way is used as activation fuel in jet aeroplanes:- i) What are W and X ? ii) What is the physical state of W and X ? iii) Name the process Y. iv) Name the product Z.​

Answer 1

It occurs deep below the ground in certain areas of the earth. So W is petroleum. Another fossil fuel X is found trapped above the deposits of W. X is natural gas.