AIPMT MAINS 2011 Chemistry Colligative Properties MCQ Question
A 0.1 molal aqueous solution of a weak acid is 30% ionized. If Kf for water is 1.86°C/m, the freezing point of the solution will be
-0.36°C
-0.24°C
-0.18°C
-0.54°C
Correct Answer
Detailed Explanation
The degree of ionization affects the van't Hoff factor, which is used in the freezing point depression formula. The calculation shows the freezing point i.24°C.
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