When ethanol mixes in cyclohexane; cyclohexane reduces the intermolecular forces between ethanol molecule. In this, liquid pair shows

If $x$ gram of non-volatile, non-electrolytic solute is dissolved in $114\  g$ octane to reduce its vapour pressure to $80\%$ of that of pure octane then $x$ is ……….. $g$. (Molar mass solute $= 40\  g/mole$)

The boiling point of an azeotropic mixture of water and ethanol is less than that of water and ethanol. The mixture shows

Which one of the following mixtures can be separated into pure components by fractional distillation

Which of the following does not show positive deviation from Raoult’s law