Arrange the following compounds in order of increasing boiling point:
I) 1-propanol, CH₃CH₂CH₂OH;
II) 1,2-propanediol, CH₃CH(OH) CH₂OH;
III) 1,2,3-propanetriol, (glycerol) , HOCH₂CH(OH) CH₂OH.

Question

Quizplus · Accepted Answer

The boiling point increases with the number of hydroxyl groups due to increased hydrogen bonding. 1-propanol has one OH group, 1,2-propanediol has two, and glycerol has three, leading to the order: I, II, III.

Arrange the Following Compounds in Order of Increasing Boiling Point