Which of the following is not an example of t | vedclass

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(A) Tautomerism involves the migration of a proton $(H^+)$ from one atom to another within the same molecule,accompanied by the relocation of a double

Vedclass · Accepted Answer

$H_2C=CH-CH=O \rightleftharpoons C^+H_2-CH=CH-O^-$

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(A) Tautomerism involves the migration of a proton $(H^+)$ from one atom to another within the same molecule,accompanied by the relocation of a double bond.In option $(a)$,the structures $H_2C=CH-CH=O$ and $C^+H_2-CH=CH-O^-$ represent resonance structures because only electrons are moving,while the positions of the atoms remain the same.Therefore,it is not an example of tautomerism.In options $(b)$,$(c)$,and $(d)$,a hydrogen atom (proton) shifts its position,which is characteristic of tautomerism.

Which of the following is not an example of tautomeric equilibrium?

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