What is the effect of adding a non-volatile solute to a pure solvent?

CHEMICAL ENGINEERING MCQs for PPSC, FPSC, NTS, and Pakistan government job tests. Select an option below, then read the explanation.

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Subject
CHEMICAL ENGINEERINGchemical-engineering
Published
12 Mar 2019
Last updated
28 May 2026

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Choose the correct answer

Explanation

When a non-volatile solute is added to a pure solvent, it typically causes the freezing point to decrease and the boiling point to increase. However, since option A states that the freezing point increases, it is incorrect. The correct understanding is that freezing point decreases and boiling point increases.

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