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Action of acetylene on dilute $\mathrm{H}_2 \mathrm{SO}_4$ gives
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1446 Upvotes
Verified Answer
The correct answer is:
acetaldehyde
Acetylene is converted to acetaldehyde when acetylene is treated with dil. $\mathrm{H}_2 \mathrm{SO}_4$ and small amount of $\mathrm{HgSO}_4$.
$$
\begin{array}{lr}
\mathrm{CH} \equiv \mathrm{CH}+\mathrm{H}_2 \mathrm{O} \frac{\mathrm{Dill}^{\mathrm{H}} \mathrm{SO}_4}{\mathrm{Hg}^{2+}} & \mathrm{CH}_3-\mathrm{CHO} \\
\text { Acetylene } & \text { acetaldehyde }
\end{array}
$$
$$
\begin{array}{lr}
\mathrm{CH} \equiv \mathrm{CH}+\mathrm{H}_2 \mathrm{O} \frac{\mathrm{Dill}^{\mathrm{H}} \mathrm{SO}_4}{\mathrm{Hg}^{2+}} & \mathrm{CH}_3-\mathrm{CHO} \\
\text { Acetylene } & \text { acetaldehyde }
\end{array}
$$
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