The boiling point of an azeotropic mixture of water and ethyl alcohol is less than that of the theoretical value of water and alcohol mixture. Hence the mixture shows

Options

A. The solution is hoghly. Saturated
B. Positive deviation from Raoult's law.
C. Negative deviation from Raolut's law
D. Nothing can be said.

Answer

B

Explanation

Positive deciations from Raoult's law noticed when
(i) Experimental value of vapor pressure of mizture is more than calculated value .
(ii) Experimental value of boiling point of mixture is less than the calculated value .
(iii) ` Delta_(mixing )H=+ve`
(iv) `Delta_(mixing) =+ve`.