MHT CET (PCB) 2025 9th April Evening Shift | Liquid Solution Question 2 | Chemistry

Calculate cryoscopic constant of solvent if 2 g solute having molar mass $80 \mathrm{~g} \mathrm{~mol}^{-1}$ dissolved in 75 g solvent decreases its freezing point by 0.4 K .

$1.2 \mathrm{~K} \mathrm{~kg} \mathrm{~mol}^{-1}$

$1.6 \mathrm{~K} \mathrm{~kg} \mathrm{~mol}^{-1}$

$2.1 \mathrm{~K} \mathrm{~kg} \mathrm{~mol}^{-1}$

$2.5 \mathrm{~K} \mathrm{~kg} \mathrm{~mol}^{-1}$

MHT CET (PCB) 2025 9th April Morning Shift

MCQ (Single Correct Answer)

-0

The osmotic pressure of equimolar concentration of $\mathrm{CaCl}_2$ and urea at same temperature are 0.6 atm and 0.25 atm respectively. Calculate van't Hoff factor for $\mathrm{CaCl}_2$.

2.0

2.4

2.7

3.0

MHT CET (PCB) 2025 9th April Morning Shift

MCQ (Single Correct Answer)

-0

Calculate the molal elevation constant of water if boiling point of 0.7 m solution of non volatile solute is 373.5 K .

[Boiling point of water $=373.15 \mathrm{~K}$ ]

$0.4 \mathrm{~K} \mathrm{~kg} \mathrm{~mol}^{-1}$

$0.25 \mathrm{~K} \mathrm{~kg} \mathrm{~mol}^{-1}$

$0.5 \mathrm{~K} \mathrm{~kg} \mathrm{~mol}^{-1}$

$0.60 \mathrm{~K} \mathrm{~kg} \mathrm{~mol}^{-1}$

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