Viscosity of a liuquid arises due to strong intermolecular forces existing between the molecules. Stronger the intermolecular forces, greater is the viscosity. Name the intermolecular forces existing in the following liquids and arrange them in the increasing order of their viscosities. Also given reason for the assigned order in one line.Water, hexane (CH_(3)CH_(2)CH_(2)CH_(2)CH_(2)CH_(3)),glycerine (CH_(2)OH CH (OH) CH_(2) OH)

Viscosity of a liuquid arises due to strong intermolecular forces exis

1.	Viscosity of a liuquid arises due to strong intermolecular forces existing between the molecules. Stronger the intermolecular forces, greater is the viscosity. Name the intermolecular forces existing in the following liquids and arrange them in the increasing order of their viscosities. Also given reason for the assigned order in one line.Water, hexane (CH_(3)CH_(2)CH_(2)CH_(2)CH_(2)CH_(3)),glycerine (CH_(2)OH CH (OH) CH_(2) OH)
Answer» Solution :In `H_(2)O` and glycerine - Hydrogen bonding and dipole - dipole INTERACTIONS are present as polar molecules. Hexane - Dispersion forces / LONDON forces exist in non - polar nature. Order of intermolecular forces is, hexane `lt` water `lt` glycerine. Thus, hexane has WEAKEST intermolecular forces and glycerine the strongest intermolecular forces. Hence, hexane has minimum viscosity and glycerine has MAXIMUM viscosity.