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Question

When acetylene is passed into dilute sulphuric acid containing $$Hg^{2+}$$ ions, the product formed is


A
Acetone
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B
Acetic acid
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C
Acetaldehyde
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D
Formaldehyde
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Solution

The correct option is C Acetaldehyde

$$CH\equiv CH\xrightarrow[1\%HgSO_{4}]{40\%H_{2}SO_{4}}\underset{Vinyl\ alcohol}{CH_{2}=CH-OH}\xrightarrow[]{Rearrangement}\underset{Acetaldehyde}{CH_{3}-CHO}$$

Chemistry
NCERT
Standard XII

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