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(C) $CH_3-CH_2-CH_2-CONH_2$ (Butanamide) undergoes Hofmann bromamide (chloramide) degradation with $Ca(OH)_2$ and $Cl_2$ to form $CH_3-CH_2-CH_2-NH_2$

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$CH_3-CH(OH)-CH_3$

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(C) $CH_3-CH_2-CH_2-CONH_2$ (Butanamide) undergoes Hofmann bromamide (chloramide) degradation with $Ca(OH)_2$ and $Cl_2$ to form $CH_3-CH_2-CH_2-NH_2$ (Propan$-1-$amine) as $X$.Reaction of $X$ with $HNO_2$ forms a primary carbocation $CH_3-CH_2-CH_2^+$,which rearranges via a $1,2$-hydride shift to a more stable secondary carbocation $CH_3-CH^+ -CH_3$.Nucleophilic attack by water on this carbocation yields Propan$-2-$ol $(CH_3-CH(OH)-CH_3)$ as the major product $Z$.

Major end product of the following sequence of reaction is: $CH_3-CH_2-CH_2-CONH_2$ $\xrightarrow{Ca(OH)_2, Cl_2, \Delta} X$ $\xrightarrow{HNO_2} Z$

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