Colligative properties are observed when _____________.
(i) a non-volatile solid is dissolved in a volatile liquid.
(ii) a non-volatile liquid is dissolved in another volatile liquid.
(iii) a gas is dissolved in non-volatile liquid.
(iv) a volatile liquid is dissolved in another volatile liquid.
The answer is the option (i, ii) Colligative properties can be observed on dissolution of a non-volatile solid or liquid in a volatile liquid