A isomerises to B on addition of traces of ac | vedclass

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(A) The addition of traces of acid $H_2SO_4$ initiates the protonation of the double bond in compound $A$,leading to the formation of a carbocation in

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(A) The addition of traces of acid $H_2SO_4$ initiates the protonation of the double bond in compound $A$,leading to the formation of a carbocation intermediate. Through a series of rearrangements,including a $1,2-H$ shift,the carbocation stabilizes and subsequently loses a proton to form a more substituted,and thus more stable,conjugated diene system. The final product $B$ is the structure shown in option $A$.

List-$I$ (Reaction)	List-$II$ (Major product)
$A. CH_3-C \equiv CH \xrightarrow{H_2O, Hg^{2+}/H^+, 333K}$	$I. CH_3-CH(OH)-CH_3$
$B. CH_3COONa \xrightarrow{H_2O, Pt, \text{electrolysis}}$	$II. CH_3-CO-CH_3$
$C. CH_3-CH=CH_2 \xrightarrow{H_2O/H^+}$	$III. CH_3-CH(OH)-CH_2OH$
$D. CH_3-CH=CH_2 \xrightarrow{H_2O, \text{dil. } KMnO_4, 273K}$	$IV. CH_3-CH_3$
	$V. CH_4$

$A$ isomerises to $B$ on addition of traces of acid $H_2SO_4$. Compound $(B)$ is

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