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Glucose and fructose from identical osaz...

Glucose and fructose from identical osazones because :

A

they are monosaccharide

B

they are reducing sugar

C

they are epimer

D

their configuration differ only at C-1 and C-2

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The correct Answer is:
D
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A : Glucose, Mannose and Fructose form identical osazone. R : Glucose, Mannose and Fructose have identical configuration at 3rd, 4th and 5th carbon atom

Glucose, Mannose and fructose.give identical osazones. Explain

(a). Glucose and fructose form the same osazone, what does it prove? (b). Why more than 3mol "of"PhNHNH_(2) do not react with glucose and fructose and how does PhNHNH_(2), which is a powerful reducting agent, act as an oxidising agent in this case?

D -Glucose and D -fructose both form the same osazone, Which statements are correct about the above reaciton?

Statement-1 : Glucose and fractose cannot give similar osazone on reaction with Ph-NH-NH_(2) . Statement-2 : Glucose and fructose have similar configuration on C_(3),C_(4),C_(5) carbon.

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