UPSC Prelims 2025·GS1·science-and-technology·science and technology

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

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Last updated 23 May 2026, 3:31 pm IST
  1. AOnly one
  2. BOnly twoCorrect
  3. CAll the three
  4. DNone

Explanation

Coal gasification technology can be used in the production of two of the mentioned substances: I. Ethanol: Yes, coal gasification produces syngas (synthesis gas) which can be converted to ethanol through the Fischer-Tropsch process or other catalytic processes. II. Nitroglycerin: No, nitroglycerin is typically produced from glycerol and nitric acid through nitration processes, not from coal gasification products. III. Urea: Yes, coal gasification produces hydrogen and carbon monoxide, which can be further processed to produce ammonia. Urea is then synthesized from ammonia and carbon dioxide, making it possible to produce urea from coal gasification derivatives. Therefore, ethanol and urea can be produced using coal gasification technology.
science-and-technology: Consider the following substances: I. Ethanol II. Nitroglycerine III. Urea Coal gasification technology can be used in t

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