MHT CET 2021 20th September Evening Shift | Liquid Solution Question 50 | Chemistry

What is cryoscopic constant of water if $$5 \mathrm{~g}$$ of glucose in $$100 \mathrm{~g}$$ of water has depression in freezing point $$2.15 \mathrm{~K}$$ ? (Molar mass of glucose $$=180$$ )

$$7.74 \mathrm{~K} \mathrm{~kg} \mathrm{~mol}{ }^{-1}$$

$$0.52 \mathrm{~K} \mathrm{~kg} \mathrm{~mol}^{-1}$$

$$1.32 \mathrm{~K} \mathrm{~kg} \mathrm{~mol}^{-1}$$

$$3.86 \mathrm{~K} \mathrm{~kg} \mathrm{~mol}^{-1}$$

MHT CET 2021 20th September Evening Shift

MCQ (Single Correct Answer)

-0

Which of the following statements is correct for boiling point of a liquid?

Temperature at which a liquid boils at any pressure.

Temperature at which solid is in equilibrium with its liquid.

Temperature at which vapour pressure equals the applied pressure.

Temperature at which applied pressure is greater than vapour pressure of liquid.

MHT CET 2021 20th September Evening Shift

MCQ (Single Correct Answer)

-0

Henry's law constant for $$\mathrm{CH}_3 \mathrm{Br}$$ is $$0.16 \mathrm{~mol} \mathrm{~L}^{-1} \mathrm{bar}^{-1}$$ at $$298 \mathrm{~K}$$. What pressure is required to have solubility of $$0.08 \mathrm{~mol} \mathrm{~L}^{-1}$$ ?

$$0.24 \mathrm{~bar}$$

$$1.6 \mathrm{~bar}$$

$$0.5 \mathrm{~bar}$$

$$4.0$$ bar

MHT CET 2021 20th September Morning Shift

MCQ (Single Correct Answer)

-0

Which of the following solutions does not flow in either direction, when separated by semipermeable membrane? (Molar mass : glucose = 180, urea = 60)

18 g urea dm$$^{-3}$$ and 18 g glucose dm$$^{-3}$$

6 g urea dm$$^{-3}$$ and 36 g glucose dm$$^{-3}$$

6 g urea dm$$^{-3}$$ and 24 g glucose dm$$^{-3}$$

12 g urea dm$$^{-3}$$ and 36 g glucose dm$$^{-3}$$

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