Multiple choice

Addition of non-volatile solute in water results in:

  1. an increase in melting point of the liquid

  2. a decrease in the boiling point of the liquid.

  3. a decrease in the vapour pressure of the liquid

  4. no change in the boiling point of the liquid
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Adding a non-volatile solute lowers the vapor pressure of the solvent because the solute particles occupy space at the surface, reducing the rate of evaporation.

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