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Chemistry · Biomolecules

JEE Advanced 2019 — Paper 1 — Question 20

Which of the following statements(s) is (are) true ?

  1. Option A:

    Oxidation of glucose with bromine water gives glutamic acid

  2. Option B:

    The two six-membered cyclic hemiacetal forms of D-(+)-glucose are called anomers

    Correct
  3. Option C:

    Monosaccharides cannot be hydrolysed to give polyhydroxy aldehydes and ketones

    Correct
  4. Option D:

    Hydrolysis of sucrose gives dextrorotatory glucose and laevorotatory fructose

    Correct

Answer: B, C, D

Step-by-step solution

sucrose → Hydrolysis H+,H2OD (Dextrorotatory) + ( ) Glu cose  (laevorotatory) +D (-) Fructose \xrightarrow[\text { Hydrolysis }]{\mathrm{H}^{+}, \mathrm{H}_{2} \mathrm{O}} \underset{\text { (Dextrorotatory) }}{\mathrm{D}}+\underset{\text { (laevorotatory) }}{\text { ( }) \text { Glu cose }}+\underset{\text { (-) Fructose }}{\mathrm{D}}

Solution figure

Answer key and solution verified before publishing.

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Exam
JEE Advanced 2019
Paper
Paper 1
Subject
Chemistry
Chapter
Biomolecules
Topic
Introduction to Biomolecules & Carbohydrates
Which of the following statements(s) is (are) true ? | JEE Advanced 2019 PYQ with Solution · DhiX AI