Which of the following derivatives of alcohol | vedclass

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(B) The stability of alcohol derivatives in an aqueous base depends on their susceptibility to hydrolysis. Esters,represented by the structure $RO-CO-

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$RO-CO-CH_3$

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(B) The stability of alcohol derivatives in an aqueous base depends on their susceptibility to hydrolysis. Esters,represented by the structure $RO-CO-CH_3$,undergo base-catalyzed hydrolysis (saponification) in an aqueous base. The mechanism involves the nucleophilic attack of the $OH^-$ ion on the carbonyl carbon of the ester,followed by the elimination of the alkoxide ion $(RO^-)$,which then abstracts a proton from the resulting carboxylic acid to form an alcohol and a carboxylate ion. Other derivatives like ethers $(RO-CH_2-C_6H_5)$ and acetals/ketals $(RO-C_5H_9O)$ are generally stable in basic media.

Which of the following derivatives of alcohols is unstable in an aqueous base $?$

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