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Q.

Coal Tar is not used in the manufacture of :

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a

Synthetic dyes

b

Drugs

c

Perfumes

d

Coke

answer is D.

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Detailed Solution

  • Coal tar is obtained as a product in the process of making coke. Hence, it is a by-product of coke and it can not be used in the manufacturing of coke.
  • Coal tar is used as starting material in the manufacturing process of various substances that we use in everyday life and in industry, like synthetic dyes, drugs, explosives, etc.
  • Coal tar can be both used in medical and industrial fields.
  • Naphthalene balls are obtained from coal tar. They are used to repel moths and other insects.
  • They are also used in the preparation of explosives, perfumes, plastics, paints, photographic materials, roofing materials, etc.
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