What is the effect of addition of a non-volatile solute to the vapour pressure of a pure liquid give reasons?

What is the effect of addition of a non-volatile solute to the vapour pressure of a pure liquid give reasons?

Text Solution

to lower the vapour pressureto increase its freezing pointto increase its boiling pointto decrease its osmotic pressure

Answer : A::C

Solution : On addition of non-volatile substance, according to the colligative property, the vapour pressure of solution decreases and its boiling point increases.