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Fuel gas production: true/false statement about water gas formation Statement: “Water gas is obtained by passing air and a large amount of steam over waste coal at about 650°C.” Decide whether this statement is correct.

Difficulty: Easy

True
False

Correct Answer: False

Explanation:

Concept
Water gas (CO + H₂) is produced by passing steam over red-hot coke (typically near 1000°C). Air is not used during the water-gas reaction stage because oxygen would burn carbon to CO₂, lowering CO yield. Air–steam mixtures over fuel beds yield producer gas or semi-water gas, not pure water gas.

Final Answer
False

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