On the treatment of the following compound wi | vedclass

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(C) The lone pair of electrons on the oxygen atom at position $2$ $(O2)$ is involved in resonance with the adjacent $C=C$ double bond,making it less b

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$C4-O5$

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(C) The lone pair of electrons on the oxygen atom at position $2$ $(O2)$ is involved in resonance with the adjacent $C=C$ double bond,making it less basic and less susceptible to protonation.In contrast,the lone pair of electrons on the oxygen atom at position $5$ $(O5)$ is not involved in resonance with any $C=C$ double bond,making it more basic and readily protonated by a strong acid.Upon protonation of $O5$,the $C4-O5$ bond becomes susceptible to cleavage,as the resulting oxonium ion is a good leaving group. The cleavage occurs at the $C4-O5$ bond,leading to the formation of a carbocation at $C4$.

On the treatment of the following compound with a strong acid,the most susceptible site for bond cleavage is

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