Colligative Properties is an important topic in the Chemistry section in MHT CET exam. Practising this topic will increase your score overall and make your conceptual grip on MHT CET exam stronger.
This article gives you a full set of MHT CET PYQs for Colligative Properties with explanations for effective preparation. Practice of MHT CET Chemistry PYQs including Colligative Properties questions regularly will improve accuracy, speed, and confidence in the MHT CET 2026 exam.
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MHT CET PYQs for Colligative Properties with Solutions
1.
Arrange the following substances in decreasing order of their boiling points:- Water, ethanol, acetone
- Ethanol, acetone, water
- Acetone, water, ethanol
- Water, acetone, ethanol
2.
Given the formula for depression of freezing point: \[ \Delta T_f = K_f \cdot m \] where \( \Delta T_f \) is the depression of freezing point, \( K_f \) is the freezing point depression constant, and \( m \) is the molality, calculate the value of \( m \).- \( m = \frac{\Delta T_f}{K_f} \)
- \( m = \frac{K_f}{\Delta T_f} \)
- \( m = K_f \cdot \Delta T_f \)
- \( m = \frac{\Delta T_f}{K_f^2} \)
3.
The elevation in boiling point of $0.25$ molal aqueous solution of a substance is $(K_b = 0.52\, K\, kg\, mol^{-1})$- $0.15 \,K$
- $0.50 \,K$
- $0.13 \,K$
- $2.08 \,K$
4.
Solutions $ A $ , $ B $ , $ C $ and $ D $ are respectively $ 0.1\, M $ glucose, $ 0.05 \,M\, NaCl $ , $ 0.05 \,M\, BaCl_2 $ and $ 0.1\, M\,AlCl_3 $ . Which one of the following pairs is isotonic ?- $ A $ and $ B $
- $ B $ and $ C $
- $ A $ and $ D $
- $ A $ and $ C $
5.
What is the depression in the freezing point?- \( \Delta T_f = K_f \times m \)
- \( \Delta T_f = K_b \times m \)
- \( \Delta T_f = m \times 100 \)
- \( \Delta T_f = K_f \times \frac{1}{m} \)
6.
The percentage (by weight) of sodium hydroxide in a $ 1.25 $ molal $ NaOH $ solution is- $ 4.76\% $
- $ 1.25\% $
- $ 5\% $
- $ 40\% $
7.
Which of the following solutions will show highest freezing point depression?- 1 M glucose
- 1 M NaCl
- 1 M AlCl3
- 1 M MgCl2
8.
A solution is prepared by dissolving 10 g of a non-volatile solute in 100 g of water. The freezing point depression of the solution is observed to be 1.5°C. Calculate the cryoscopic constant of the solvent.- \(0.15 \, \text{kg/mol}\)
- \(1.5 \, \text{kg/mol}\)
- \(5.0 \, \text{kg/mol}\)
- \(2.0 \, \text{kg/mol}\)
9.
For 1 molal aqueous solution of the following compounds, which one will show the highest freezing point?- \( [\text{Co}(\text{H}_2\text{O})_6]\text{Cl}_3 \)
- \( [\text{Co}(\text{H}_2\text{O})_5\text{Cl}]\text{Cl}_2\cdot\text{H}_2\text{O} \)
- \( [\text{Co}(\text{H}_2\text{O})_4\text{Cl}_2]\text{Cl}\cdot2\text{H}_2\text{O} \)
- \( [\text{Co}(\text{H}_2\text{O})_3\text{Cl}_3]\cdot3\text{H}_2\text{O} \)
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