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.
Questions related to Science are asked in various competitive exams like UPSC CSE, State PCS, UPSC CDS, NDA, SSC CGL, RRB NTPC, etc.
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