Q. 2 D
Explain in brief about coal tar and coal gas.
It is a dark black coloured liquid, mostly various types of organic compounds are present in it. Earlier it was used for the preparation of explosives, dyes, artificial fibres, drugs, pesticides. Now a days organic substances are obtained from petroleum products instead of coal tar.
mostly carbon monoxide and some other gaseous hydrocarbon compounds that are present in coal gas. This mixture of gases is combustible and is used as fuel.
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