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

Options

A. Monosaccharides cannot be hydrolyzed to give polyhydroxy aldehydes and ketones.
B. Oxidation of glucose with bromine water gives glutamic acid.
C. Hydrolysis of sucrose gives dextrorotatory glucose and laevorotatory fructose.
D. The two six-membered cyclic hemiacetal forms of D-(+)-glucose are called anomers.

Answer

A, C, D

Explanation

The statement (B) is incorrect as glucose on oxidation with Br, water produces gluconic acid.

The two six-membered cyclic hemiacetal forms of D-(+)-glucose differ in CI configuration, hence are anomers. It is well known fact that the action of invertase enzyme sucrose is hydrolyzed to form glucose (+) and fructose (-). Monosaccharide by definition are polyhydroxy aldehydes and ketones that cannot be hydrolyzed further.