Question

Consider the following statements: D-glucose, D-galactose and D-fructose are all
1.Isomers
2.Epimers
3.Aldohexoses
4.Monosaccharides
Which of the above statements are correct?

• A. 1 and 4
• B. 1, 2 and 3
• C. 2 and 4
• D. 1, 2 and 4

Answer 1

The correct option is A 1 and 4

Isomers

Isomers are compounds that have the same molecular formula but the arrangement of atoms in the molecule is different.

D-glucose, D-galactose and D-fructose are all isomers as they have a common formula $C_6{H}_{12}{O}_6$ , but the arrangement of atoms on the carbon is different.

Monosaccharides
Monosaccharides are the simplest carbohydrates that cannot be further broken down by the process of hydrolysis.

D-glucose, D-galactose and D-fructose are all monosaccharides.
Final answer
(1) 1 and 4