MHT CET202619 April 2026Evening ShiftChemistryGeneral Organic ChemistryActual
IUPAC name of glycerol is -
Options
- APropane - 1, 2-diol.
- BPropane - 1, 3-diol.
- CPropane - 1,2,3-triol.
- DPropene - 1,2,3-triol.
Correct answer
C. Propane - 1,2,3-triol.
Step-by-step solution
The chemical formula of glycerol is CH₂(OH)-CH(OH)-CH₂(OH) . The principal functional group is the hydroxyl group ( -OH ), which is indicated by the suffix 'ol'. The longest carbon chain containing the -OH groups has 3 carbon atoms, so the parent alkane is propane. Numbering the carbon chain from either end gives the positions of the -OH groups as 1, 2, and 3. Since there are three hydroxyl groups, the multiplier 'tri' is used. Combining these parts, the IUPAC name of glycerol is propane-1,2,3-triol. Answer: Propan