Chemistry-Raoult's Law
NEET Chemistry Raoult's Law MCQ Question
Type: MCQ-fact-Medium-Class 12
What happens to the vapour pressure of a solution when a non-volatile solute is added?
A
It decreases.
B
It increases.
C
It remains unchanged.
D
It fluctuates randomly.
Correct Answer
Option A
Detailed Explanation
The addition of a non-volatile solid to a solvent decreases its vapour pressure, causing the solution to freeze at a lower temperature than that of the pure solvent, as per Raoult's law.
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