Glycerol is a:a.) Monofunctional compoundb.) Difunctional compoundc.) Trifunctional compoundd.) Non – functional compound

Glycerol, also known as glycerin, is a compound with the chemical formula \( \text{C}_3\text{H}_8\text{O}_3 \). It contains three hydroxyl (\(-OH\)) functional groups. Here's the breakdown of the options based on this information:

1. **Monofunctional compound**: This would mean the compound has only one functional group. Glycerol has three, so this option is incorrect.

2. **Difunctional compound**: This would mean the compound has two functional groups. Since glycerol has three hydroxyl groups, this option is also incorrect.

3. **Trifunctional compound**: This is correct because glycerol has three hydroxyl (\(-OH\)) groups, making it a trifunctional compound.

4. **Non-functional compound**: This option is incorrect because glycerol has functional groups (the hydroxyl groups).

### Conclusion
The correct answer is **c.) Trifunctional compound**.