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

Chemistry · Biomolecules

JEE Advanced 2023 — Paper 2 — Question 28

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

Option A:
Correct
Option B:
Option C:
Option D:

Answer: A

Step-by-step solution

Hydrolysis of sucrose brings about a change in the sign of rotation from dextro(+) to laevo(-) and the product

named as invert sugar.

Answer key and solution verified before publishing.

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Exam: JEE Advanced 2023
Paper: Paper 2
Subject: Chemistry
Chapter: Biomolecules
Topic: Introduction to Biomolecules & Carbohydrates