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Question

Which gas is produced when steam is passed over red hot coke?

A
Producer gas
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B
CNG
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C
Water gas
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D
LPG
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Solution

The correct option is C Water gas
Synthesis gas is made by passing steam over a red-hot carbon fuel such as coke, Water gas is a mixture of carbon monoxide and hydrogen produced from synthesis gas
H2O+CCO+H2(δH=+131KJ/mol)
Synthesis gas is a useful product, but requires careful handling due to its flammability and the risk of carbon monoxide poisoning.

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