Consider the following substances:
I. Ethanol
II. Nitroglycerine
III. Urea
Coal gasification technology can be used in the production of how many of them?
Detailed Explanation:
Coal gasification converts coal into syngas (mainly carbon monoxide and hydrogen), which serves as a raw material for many chemicals.
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I. Ethanol ✅ Correct – Syngas can be converted into ethanol through chemical or biological processes.
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II. Nitroglycerine ❌ Incorrect – Nitroglycerine is produced by nitrating glycerol, not from syngas obtained through coal gasification.
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III. Urea ✅ Correct – Hydrogen from syngas is used to make ammonia, which then reacts with carbon dioxide to produce urea.
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Therefore, only Ethanol and Urea can be produced using coal gasification technology, making Option B the correct answer.
Substance-wise Analysis
| Substance | Produced Using Coal Gasification? | Explanation |
|---|---|---|
| Ethanol | ✅ Yes | Syngas can be converted into ethanol. |
| Nitroglycerine | ❌ No | Produced from glycerol through nitration. |
| Urea | ✅ Yes | Made using ammonia and carbon dioxide derived from gasification products. |
Coal Gasification
What is Coal Gasification?
Coal gasification is the process of converting coal into syngas, a mixture of:
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Carbon Monoxide (CO)
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Hydrogen (H₂)
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Carbon Dioxide (CO₂)
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Water Vapour
Major Products from Syngas
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Ammonia
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Urea
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Methanol
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Ethanol
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Synthetic Natural Gas (SNG)
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Hydrogen
Important Facts
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Coal gasification helps reduce dependence on imported natural gas and crude oil.
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It is an important technology for producing fertilizers and industrial chemicals.
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India is promoting coal gasification to utilize its large domestic coal reserves.
Question 1 of 2 Conventional Energy Sources
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First question in this topic
With reference to coal-based thermal power plants in India, consider the following st...