TS EAMCET · Chemistry · Hydrocarbons
The correct set of reagents which convert acetylene to but-2-enal are
- A \(\mathrm{H}_2 \mathrm{SO}_4, \mathrm{NaOH}\)
- B \(\mathrm{H}_2 \mathrm{O} / \mathrm{Hg}^{2+} / \mathrm{H}^{+}\), dil. \(\mathrm{NaOH}\)
- C \(\mathrm{H}_2 \mathrm{O} / \mathrm{H}^{+}\), conc. \(\mathrm{NaOH}\)
- D \(\mathrm{H}_2 \mathrm{O}, \mathrm{KMnO}_4 / \mathrm{OH}^{-}\)
Answer & Solution
Correct Answer
(B) \(\mathrm{H}_2 \mathrm{O} / \mathrm{Hg}^{2+} / \mathrm{H}^{+}\), dil. \(\mathrm{NaOH}\)
Step-by-step Solution
Detailed explanation
Acetylene is \((\mathrm{HC} \equiv \mathrm{CH})\), using \(\mathrm{H}_2 \mathrm{O} / \mathrm{Hg}^{2+} / \mathrm{H}^{+}\) dil. \(\mathrm{NaOH}\), we get but-2-enal as follows. Hence, (b) is the correct answer.
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