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MHTCET 17 Apr 2026 Shift 2 Paper

Question : 74 of 150

Marks: +1, -0

Identify the correct statement from following.

The vapour pressure of a solvent increases by dissolving nonvolatile solute into it.
The boiling point of solvent decreases by dissolving a nonvolatile solute into it.
The osmotic pressure of electrolytic solution is greater than nonelectrolytic solution of the same concentration.
The freezing point of solvent is a colligative properly.

Solution:

Concept:

Colligative properties depend on the number of solute particles in solution, not on their nature.

Explanation:

A nonvolatile solute lowers the vapour pressure of the solvent, so option A is wrong.

A nonvolatile solute raises the boiling point of the solvent, so option B is wrong.

Depression in freezing point is a colligative property, not the freezing point itself, so option D is wrong.

An electrolyte dissociates into ions and produces more solute particles than a nonelectrolyte of the same concentration.

Osmotic pressure is given by

\pi = iCRT

For electrolytes, the van't Hoff factor is

i > 1

Hence, the osmotic pressure of an electrolytic solution is greater than that of a nonelectrolytic solution of the same concentration.

Thus, option C is the correct statement.

Answer:

Option C is correct.

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