Which of the following reagents would disting | vedclass

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(C) $cis$-cyclopenta-$1,2$-diol reacts with acetone to form an acetonide (a cyclic ketal) because the two hydroxyl groups are on the same side of the

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Acetone

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(C) $cis$-cyclopenta-$1,2$-diol reacts with acetone to form an acetonide (a cyclic ketal) because the two hydroxyl groups are on the same side of the ring,allowing for the formation of a stable five-membered ring structure.$trans$-cyclopenta-$1,2$-diol cannot form this cyclic ketal with acetone because the hydroxyl groups are on opposite sides of the ring,making the formation of the required cyclic structure geometrically impossible.Therefore,acetone acts as a reagent to distinguish between the two isomers.

Which of the following reagents would distinguish $cis$-cyclopenta-$1,2$-diol from the $trans$-isomer?

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