Question

______ solutions of different non-volatile and non-electrolytic substances dissolved in the same solvent exhibit the ______ depression of freezing point.

Answer 1

Equimolal solutions of different non-volatile and non-electrolytic substances dissolved in the same solvent exhibit the same depression of freezing point.

Explanation:

Equimolal means the solutions have the same molality (moles of solute per kilogram of solvent). Non-volatile and non-electrolytic substances do not evaporate easily and do not dissociate into ions, respectively. The depression in freezing point is a colligative property, which depends only on the number of solute particles (not their nature) in a given amount of solvent. So, for solutions with the same molality of such solutes in the same solvent, the freezing point depression will be identical.