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Question

Ethyne is normally prepared by the pyrolysis of:

A
methyne
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B
alcohol
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C
methane
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D
carboxylic acid
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Solution

The correct option is C methane
Ethyne is normally prepared by the pyrolysis of methane. In this procedure, a stream of methane gas is briefly heated to 1500oC in an airless chamber. Air must be excluded from the reaction or oxidation (combustion) will occur.

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