Glucose and fructose form:

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(A) Glucose and fructose form the same osazone. Both glucose and fructose differ only in their configuration at carbon atoms $C-1$ and $C-2$. During t

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Same osazone

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(A) Glucose and fructose form the same osazone. Both glucose and fructose differ only in their configuration at carbon atoms $C-1$ and $C-2$. During the reaction with excess phenylhydrazine,the structural differences at these two carbons are eliminated,resulting in the formation of an identical osazone derivative for both sugars.

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