A compound gives a positive test with I_2/NaO | vedclass

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(B) $1$. The $I_2/NaOH$ test (iodoform test) is positive for compounds containing the $CH_3CO-$ group or the $CH_3CH(OH)-$ group.$2$. Extraction from

Vedclass · Accepted Answer

$CH_3(CH_2)_3COCH_3$

Vedclass · Answer

(B) $1$. The $I_2/NaOH$ test (iodoform test) is positive for compounds containing the $CH_3CO-$ group or the $CH_3CH(OH)-$ group.$2$. Extraction from benzene by $NaHSO_3$ indicates the formation of a bisulfite addition compound,which is characteristic of aldehydes and small methyl ketones.$3$. $CH_3(CH_2)_4CHO$ (hexanal) gives a positive $NaHSO_3$ test but does not contain the $CH_3CO-$ group required for a positive iodoform test.$4$. $CH_3(CH_2)_3COCH_3$ (hexan$-2-$one) contains the $CH_3CO-$ group,thus giving a positive iodoform test,and it is a methyl ketone,which reacts with $NaHSO_3$ to form a crystalline addition product.$5$. Therefore,the correct compound is $CH_3(CH_2)_3COCH_3$.

$A$ compound gives a positive test with $I_2/NaOH$ and is extracted from benzene by $NaHSO_3$. It may be:

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