Intermolecular forces between two benzene molecules are nearly of same strength as those between two toluene molecules. For a mixture of benzene and toluene, which of the following are not true?

Options

A. `Delta_(mix)` H = zero
B. `Delta_(mix)` V= zero
C. These will from minimum boilng azeotrope
D. These will not from ideal solution

Answer

C, D

Explanation

The solution which follows Raoult's law is law is known as ideal solution. For an ideal solution intermolecular forces between two benzene molecules are nearly of same strength as those between two toluene molecules. For an ideal solution
`" "DeltaV_(mix)=0and DeltaH_(mix)=0`
Thus, the mixture of benzene and toluent is an example of ideal solution. Optical (c ) is incorrect as minimum boiling azeotropes are formed by non-ideal solution.