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Question

The preparation of benzene from acetylene can also be said as:

A
oxidation
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B
polymerization
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C
dehydration
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D
condensation
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Solution

The correct option is B polymerization
In preparation of benzene from alkyne, the three molecules of an alkyne are passed through red-hot Fe tube to form benzene. In this reaction all three molecules of alkyne undergo condensation trimerization to form benzene, Thus, this method can also be called as polymerization.

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