The substances W is a fossil fuel. It occurs deep below the ground in certain areas of 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 to different uses. A special grade of product z obtained in this way is used an aviation fuel in jet aero planes.
(a) What are (i) W, and (ii) X
(b) what is the physical state of (i) W, and (ii) X?
(c) Name the process Y?
(d) Name the product Z?
Answers
Petroleum, natural gas, refining, kerosene
Explanation:
(a) The substances W is a fossil fuel. 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.
(b) Physical state of W is liquid. Physical state of X is gas.
(c) When W is subjected to a process called Y, then a number of different products are collected at different temperature ranges which are put to different uses. Y is refining of petroleum.
(d) A special grade of product Z obtained in this way is used as an aviation fuel in jet aero planes. So Z is kerosene.
Answer:
(a) W is petroleum.
X is natural gas.
(b) Physical state of W is liquid. Physical state of X is gas.
(c) Y is refining of petroleum.
(d)Z is kerosene.
Explanation: