Question:
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.
Solution:
Option (i) a non-volatile solid is dissolved in a volatile liquid and (ii) a non-volatile liquid is dissolved in another volatile liquid are the answers.