A) liquid solvent and solid solvent
B) liquid solute and solid solvent
C) liquid solute and solid solute
D) liquid solvent and solid solute
Correct Answer: A
Solution :
Freezing point of a substance is the temperature at which the solid and the liquid forms of the substance are in equilibrium. If a non-volatile solute is added to the solvent, there is decrease in vapour pressure of the solution and thus the freezing point of the solution is less than that of pure solvent. It is called depression in freezing point.
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