(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.
Correct Answers:
(i) a non-volatile solid is dissolved in a volatile liquid
(ii) a non-volatile liquid is dissolved in another volatile liquid
Explanation: Colligative Properties are observed when a non-volatile solid or liquid is dissolved in some other volatile liquid.