Which one is a reducing sugar?

Galactose

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

Gluconic acid

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Sucrose

No worries! We‘ve got your back. Try BYJU‘S free classes today!

β

-methyl galactoside

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is A Galactose
Galactose is a monosacccharide which combines with glucose to form lactose. The molecular formula for Galactose is C $_{6}$ H $_{12}$ O $_{6}$ . It is a C-4 epimer of glucose. The polymeric form of galactose is known as galactan. It is a reducing sugar as it has free aldehyde group which is capable to attack as a reducing agent. The anomeric carbon is free.
So, the correct answer is option A.

Suggest Corrections

Similar questions

N a + C_{2} H_{5} O H

M e t h y l -

α

- D - g l u c o s i d e

m e t h y l -

β

- g l u c o s i d e

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

α - D -

β - D -

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

Join BYJU'S Learning Program