gs1medium

Consider the following substances: I. Ethanol II. Nitroglycerine III. Urea. Coal gasification technology can be used in the production of how many of them?

  1. A.Only one
  2. B.Only two
  3. C.All the three
  4. D.None
▶ Answer & Explanation

Correct answer: B. Only two

Coal gasification produces synthesis gas (syngas), a mixture primarily of carbon monoxide and hydrogen. Syngas is a crucial intermediate for producing various chemicals. Ethanol can be synthesized from syngas via processes like the Fischer-Tropsch synthesis followed by hydrogenation. Urea production typically involves ammonia and carbon dioxide; ammonia can be synthesized from hydrogen derived from syngas. Nitroglycerine, an explosive, is synthesized through the nitration of glycerol, and while glycerol can be derived from various sources, direct syngas conversion to nitroglycerine is not a standard industrial route, although glycerol production pathways might indirectly involve syngas-derived intermediates.

Source: UPSC gs1 2025

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