Which of the following is used to obtain Naphthalene balls, which repel moths and other insects?
Correct Answer : c ) Coal tarExplanation :
Coke is used in the manufacture of steel and in the extraction of many metals. Coal gas is used as a fuel in many industries situated near the coal processing plants. Products obtained from coal tar are used as starting materials for manufacturing of synthetic dyes, drugs, explosives, perfumes, plastics, paints, photographic materials, roofing materials, etc. Naphthalene balls used to repel moths and other insects are also obtained from coal tar.
Hence, (c) is the correct answer.
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Word Of The Day
Noun: A hard rigid usually large covering of an animal.; The outside part of a fruit or seed.; Something like an external structure that resembles a shell.; A casing without substance.; The hard exterior of an egg.; A hard enclosing cover.
Verb: To take out of the shell.; To fall out of the shell.; To cast the external covering.; To gather shells from a beach.
"My mother collected shells at the beach."View More