MHT CET 2023 9th May Evening Shift | Liquid Solution Question 77 | Chemistry

A solution of nonvolatile solute is obtained by dissolving $$1 \mathrm{~g}$$ in $$100 \mathrm{~g}$$ solvent, decreases its freezing point by $$0.3 \mathrm{~K}$$. Calculate cryoscopic constant of solvent if molar mass of solute is $$60 \mathrm{~g} \mathrm{~mol}^{-1}$$.

$$1.0 \mathrm{~K} \mathrm{~kg} \mathrm{~mol}^{-1}$$

$$1.4 \mathrm{~K} \mathrm{~kg} \mathrm{~mol}^{-1}$$

$$2.4 \mathrm{~K} \mathrm{~kg} \mathrm{~mol}^{-1}$$

$$1.8 \mathrm{~K} \mathrm{~kg} \mathrm{~mol}^{-1}$$

MHT CET 2023 9th May Evening Shift

MCQ (Single Correct Answer)

-0

Which among the following gases exhibits very low solubility in water at room temperature?

$$\mathrm{O}_2$$

$$\mathrm{CO}_2$$

$$\mathrm{NH}_3$$

$$\mathrm{HCl}$$

MHT CET 2023 9th May Morning Shift

MCQ (Single Correct Answer)

-0

$$0.2 ~\mathrm{M}$$ aqueous solution of glucose has osmotic pressure 4.9 atm at $$300 \mathrm{~K}$$. What is the concentration of glucose if it has osmotic pressure $$1.5 \mathrm{~atm}$$ at same temperature?

$$0.03 \mathrm{~M}$$

$$0.04 \mathrm{~M}$$

$$0.05 \mathrm{~M}$$

$$0.06 \mathrm{~M}$$

MHT CET 2023 9th May Morning Shift

MCQ (Single Correct Answer)

-0

A solution of nonvolatile solute is obtained by dissolving $$3.5 \mathrm{~g}$$ in $$100 \mathrm{~g}$$ solvent has boiling point elevation $$0.35 \mathrm{~K}$$. Calculate the molar mass of solute.

(Molal elevation constant $$=2.5 \mathrm{~K} \mathrm{~kg} \mathrm{~mol}^{-1}$$ )

$$270 \mathrm{~g} \mathrm{~mol}^{-1}$$

$$260 \mathrm{~g} \mathrm{~mol}^{-1}$$

$$250 \mathrm{~g} \mathrm{~mol}^{-1}$$

$$240 \mathrm{~g} \mathrm{~mol}^{-1}$$

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