What is coke? How is it useful to us?
Coke is a tough, porous and black substance. It is almost pure form of carbon.It is obtained by destructive distillation of coke. It is almost pure form of carbon.
(i) Coke is used to manufacture steel.
(ii) It is used in extraction of many metals.
What does coal mainly consist of?
Which constituents are separated from petroleum during the refining of petroluem?
What is coal and also write its uses?
What is coal-tar? How is it useful to us?
