Question

Glycerol is more viscous than propanol.Why?

Answer 1

Answer:

These three OH groups can bind to other hydroxyl groups, either in water molecules – which makes glycerol very soluble in water – or by hydrogen-bonding with other glycerol molecules. Hydrogen-bonding creates an aggregation that means that glycerol does not flow as well as water, so neat glycerol is rather viscous.

Explanation:

The glycerine is more viscous than water because due to presence of hydrogen atoms , we all know that glycerine has more hydrogen bonding than water molecule , which makes an aggregation which means that glycerine is more viscous than water , in simple words glycerine can't flow as that of water molecule.