Question

A disaccharide X cannot be oxidised by bromine water. The acid hydrolysis of X leads to a laevorotatory solution. The disaccharide X is

Answer 1

Correct option is (A)

A and D cannot be oxidised by bromine water as they do not have hemiacetal linkage.

The acid hydrolysis of A leads to a laevorotatory solution.

A is sucrose which is dextrorotatory, on acid hydrolysis gives mixture of α-D-glucose and β-D-fructose, the mixture is laevorotatory.