Question

Which of the following is a polyhydric alcohol?

• A. Ethanol
• B. Glycerol
• C. Propanol
• D. Phenol

Answer 1

The Correct Option is B

Glycerol is a polyhydric alcohol due to the presence of three hydroxyl groups.

Answer 2

Glycerol, also known as glycerin, is classified as a polyhydric alcohol because it contains three hydroxyl groups (–OH) in its molecular structure. The chemical formula for glycerol is C₃H₈O₃, which consists of a three-carbon backbone with a hydroxyl group attached to each carbon atom.

The presence of these hydroxyl groups makes glycerol highly hydrophilic, allowing it to dissolve easily in water. Glycerol is widely used in various industries, including the pharmaceutical, cosmetic, and food industries, due to its moisturizing properties and ability to retain moisture. It is also used as a solvent and in the production of antifreeze and explosives.

Glycerol’s polyhydric nature, which means it has multiple hydroxyl groups, contributes to its ability to form hydrogen bonds, making it a versatile and valuable compound in both industrial and biological applications.