Question
A carbonyl compound $'A \ '$ having molecular formula $C _5 H _{10} O$ forms crystalline precipitate with sodium bisulphite and gives positive iodoform test but does not reduce Fehling solution. Write the structure of carbonyl compound.
✓
Answer
A carbonyl compound $C_5H_{10}O$ has two structures.
Pentan$-2-$one forms crystalline precipitate with sodium bisulphite and gives positive iodoform test. But does not reduce Fehling solution.
Pentan$-3-$one does not react with iodine and $NaOH$ because it does not contain
group.
Pentan$-2-$one forms crystalline precipitate with sodium bisulphite and gives positive iodoform test. But does not reduce Fehling solution.
Pentan$-3-$one does not react with iodine and $NaOH$ because it does not contain
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$\begin{aligned}
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& \Delta H _1=-54.5 kJ mol ^{-1} \\
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& \Delta H _2=-68.4 kJ mol ^{-1}
\end{aligned}$
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