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Question

The number of πbonds in the product formed by passing acetylene through dil. H2SO4 containing mercuric sulphate is:

A
zero
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B
one
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C
two
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D
three
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Solution

The correct option is B one
Acetylene undergoes hydration in the presence of dil sulphuric acid and mercuric sulphate to form acetaldehyde( CH3CHO). The reaction can be written as:
HCCH+H2OH+,Hg2+−−−−−H3CCHO

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