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

Question

Quizplus · Accepted Answer

Viscosity increases with the number of hydroxyl (OH) groups due to increased hydrogen bonding. Therefore, 1-propanol (I) with one OH group has the lowest viscosity, followed by 1,2-propanediol (II) with two OH groups, and 1,2,3-propanetriol (III) with three OH groups has the highest viscosity.

Arrange the Following Compounds in Order of Increasing Viscosity