Which one of the following statements is not true regarding (+) lactose?

On hydrolysis, (+) lactose give equal amount of

D (+)

glucose and

D (+)

galactose

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(+) Lactose is a

β -

glucoside formed by union of a molecule of

D (+)

glucose and a molecule of

D (+)

galactose

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(+) Lactose is a reducing sugar and does not exhibit mutarotation

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(+) Lactose,

C_{12} H_{22} O_{11}

contains 8-

O H

goups

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Solution

The correct option is C (+) Lactose is a reducing sugar and does not exhibit mutarotation
Answer:- (C) (+) Lactose is a reducing sugar and does not exhibit mutarotation
(+) Lactose is a reducing sugar and exhibits mutarotation by virtue of the anomeric $C - 1$ of the glucose residue.

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Similar questions

Regarding lactose, some statements are given below

A) On hydrolysis, lactose gives β-D-galactose and β-D-glucose

B) In lactose C₁ of β-D-galactose has acetal structure and C₁ of β-D-glucose has hemiacetal structure

C) In lactose molecule, β-D-galactose is a non-reducing unit and β-D-glucose is reducing unit

The correct statements are

Regarding lactose, some statements are given below

A) On hydrolysis, lactose gives β-D-galactose and β-D-glucose

B) In lactose C₁ of β-D-galactose has acetal structure and C₁ of β-D-glucose has hemiacetal structure

C) In lactose molecule, β-D-galactose is a non-reducing unit and β-D-glucose is reducing unit

The correct statements are

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