An azeotropic solution of two liquids has boiling point lower than either of them when it

Question

An azeotropic solution of two liquids has boiling point lower than either of them when it (A) shows negative deviation from Raoult’s law (B) shows no deviation from Raoult’s law (C) shows positive deviation from Raoult’s law (D) is saturated

Tardigrade Admin · Accepted Answer

In case of positive deviation from Raoult's law, the observed vapour pressure is greater than the ideal vapour pressure and boiling point of azeotrope becomes lower than either of pure liquid.

Q. An azeotropic solution of two liquids has boiling point lower than either of them when it

shows negative deviation from Raoult’s law

shows no deviation from Raoult’s law

shows positive deviation from Raoult’s law

is saturated

In case of positive deviation from Raoult's law, the observed vapour pressure is greater than the ideal vapour pressure and boiling point of azeotrope becomes lower than either of pure liquid.