At `20^(@)C` the increasing order of viscosity of acetic acid, acetone and methanol is: acetone `lt` methanol`lt`acetic acid. Arrange the liquids according to their increasing intermolecular attractive forces.

Explanation

With the increase or decrease in the intermolecular force of attraction of a liquid, the value of viscosity coefficient of the liquid the increases or decreases. At `20^(@)C`, increasing order of the values of viscosity coefficient of the given liquids is : acetone`lt`methanol`tl`acetic acid. thus, the order of increasing intermolecular attractive force of these liquids is: acetone`tl`methanol`lt`acetic acid.