JEE Advanced 2019 · Paper 1 · Chemistry Q11

ChemistryMultiple correct+4 / -1Question 29 of 54

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

Monosaccharides cannot be hydrolysed to give polyhydroxy aldehydes and ketones

Oxidation of glucose with bromine water gives glutamic acid

Hydrolysis of sucrose gives dextrorotatory glucose and laevorotatory fructose

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

Answer and worked solution

Official answer: A, C, D

(A) Monosaccharides are the simplest sugars and cannot be hydrolysed further. True.
(B) Bromine water oxidises glucose to gluconic acid. Glutamic acid is an amino acid. False.
(C) Sucrose hydrolyses to D-(+)-glucose and D-(−)-fructose (invert sugar). True.
(D) The α and β pyranose forms of D-glucose, which differ only at C1, are anomers. True.

(A), (C), (D)

Topics:Carbohydrates

JEE Advanced 2019 · Paper 1, Chemistry question 11