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Answer the following question in a few sentences:
Name the products obtained and their uses when coal is processed in industry.
Various valuable products are obtained when coal is strongly heated in the absence of air in closed retorts. These are coke, coal tar and coal gas.
Uses of coke:
It is used in the manufacture of and the extraction of many metals. It acts as a fuel, and it is a better fuel than .
Uses of coal tar:
The various compounds obtained from used as starting materials for manufacturing a large number of substances used in everyday life and the industry like synthetic dyes, drugs, explosives, perfumes, plastics, paints, photographic materials, roofing materials, etc.
balls used to repel moths and other insects are also obtained from coal tar.
Uses of coal gas:
These gases are used as a fuel in many industries situated near processing plants.
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