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(D) $1$. Both $D$-glucose and $D$-fructose are aldose and ketose sugars respectively,but they share the same configuration at $C-3, C-4,$ and $C-5$.$2

Vedclass · Accepted Answer

$D$-glucose and $D$-fructose form the same product with $H_2N-NH-Ph$.

Vedclass · Answer

(D) $1$. Both $D$-glucose and $D$-fructose are aldose and ketose sugars respectively,but they share the same configuration at $C-3, C-4,$ and $C-5$.$2$. When reacted with phenylhydrazine $(H_2N-NH-Ph)$,both $D$-glucose and $D$-fructose form the same osazone derivative because the reaction involves the first two carbon atoms,where the difference in structure is eliminated.$3$. Option $A$ is incorrect because both have the same number of chiral centers.$4$. Option $B$ is incorrect as they yield different products due to different oxidative cleavage patterns.$5$. Option $C$ is incorrect as they form different oximes.

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