n-Hexane is obtained when glucose is
Answer & explanation
Correct answer: option 1
The correct answer is Option (1) → Prolonged heated with HI
- When glucose is prolongedly heated with hydroiodic acid (HI), it undergoes reductive cleavage.
- All hydroxyl groups (–OH) in glucose are replaced by hydrogen atoms, resulting in the formation of an alkane with the same number of carbon atoms as glucose.
- Glucose has 6 carbon atoms → the product is n-hexane.
Other options:
- Hydroxylamine → forms oximes.
- Bromine water → mild oxidation of aldehyde to acid.
- Acetic anhydride → forms acetate esters.