Which compound exhibits tautomerism?

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Question

(D) Tautomerism requires the presence of at least one $\alpha$-hydrogen atom attached to an $sp^3$ hybridized carbon atom adjacent to a functional gro

Vedclass · Accepted Answer

$RCH_2NO_2$

Vedclass · Answer

(D) Tautomerism requires the presence of at least one $\alpha$-hydrogen atom attached to an $sp^3$ hybridized carbon atom adjacent to a functional group like the nitro group $(-NO_2)$.In $RCH_2NO_2$,the carbon atom attached to the $-NO_2$ group has two $\alpha$-hydrogen atoms,which are acidic due to the electron-withdrawing effect of the nitro group.Therefore,$RCH_2NO_2$ can exhibit nitro-aci tautomerism.

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