Q. 94.7( 3 Votes )

Carefully e

Answer :

Structure A is Ribose sugar. Structure B is Deoxyribose sugar.

In structure A, i.e., ribose sugar, there is a hydroxyl (-OH) group on the second carbon. Whereas in structure B, i.e., deoxyribose sugar, instead of the hydroxyl group, there is a hydrogen atom on the second carbon.

Chemically, hydroxyl group is more reactive than a hydrogen atom. Thereby, making the compound easily degradable and catalytic.

Therefore, structure A is said to be more reactive than structure B, i.e., ribose sugar is more reactive than deoxyribose sugar.

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