Q.

Correct statements among the following are

I  : All monosaccharides whether aldoses or ketoses are reducing sugars.

II  : Glucose also gives Schiff’s test and it forms a hydrogensulphite addition product.

III  : Fructose is non reducing sugar

IV :  Fructose is a laevorotatory compound.

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a

I, III and IV only

b

I, IV only

c

II,III and IV only

d

I,II,III and IV

answer is D.

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Detailed Solution

II glucose cannot give schiff’s test and does not form hydrogensulphide due to cyclic hemiacetal structure.

III. Fructose is reducing sugar

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