Which of the following compounds does not exh | vedclass

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Question

(A) For a compound to exhibit keto-enol tautomerism,it must possess at least one $\alpha$-hydrogen atom adjacent to the carbonyl group.$A$. $p$-Benzoq

Vedclass · Accepted Answer

$p$-Benzoquinone

Vedclass · Answer

(A) For a compound to exhibit keto-enol tautomerism,it must possess at least one $\alpha$-hydrogen atom adjacent to the carbonyl group.$A$. $p$-Benzoquinone: It has no $\alpha$-hydrogen atoms available for tautomerization.$B$. Benzaldehyde oxime: It can exhibit tautomerism (nitroso-oxime tautomerism).$C$. Cyclohexane$-1,3,5-$trione: It has $\alpha$-hydrogen atoms and exhibits keto-enol tautomerism.$D$. Cyclohexane$-1,4-$dione: It has $\alpha$-hydrogen atoms and can exhibit keto-enol tautomerism.Therefore,$p$-Benzoquinone does not exhibit tautomerism.

Which of the following compounds does not exhibit tautomerism?

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