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An organic compound $X$ gives a red precipitate on heating with Fehling's solution. Which one of the following reactions yields $X$ as a major product?
Options:
- A
- B $\mathrm{C}_2 \mathrm{H}_5 \mathrm{Br}+\mathrm{AgOH} \stackrel{\Delta}{\longrightarrow}$
- C $2 \mathrm{C}_2 \mathrm{H}_5 \mathrm{Br}+\mathrm{Ag}_2 \mathrm{O} \stackrel{\Delta}{\longrightarrow}$
- D $\mathrm{C}_2 \mathrm{H}_2+\mathrm{H}_2 \mathrm{O} \underset{1 \% \mathrm{HgSO}_4 60^{\circ} \mathrm{C}}{\stackrel{40 \% \mathrm{H}_2 \mathrm{SO}_4}{\longrightarrow}}$
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Verified Answer
The correct answer is:
$\mathrm{C}_2 \mathrm{H}_2+\mathrm{H}_2 \mathrm{O} \underset{1 \% \mathrm{HgSO}_4 60^{\circ} \mathrm{C}}{\stackrel{40 \% \mathrm{H}_2 \mathrm{SO}_4}{\longrightarrow}}$
Acetaldehyde + Fehling's solution $\stackrel{\Delta}{\longrightarrow}$ Cuprous oxide (Red ppt.)
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