Solute A associates in | LIQUID SOLUTION | JEE-MAIN 2022

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JEE MAIN 2022

25-06-2022 S2

Question

Solute A associates in water. When 0.7 g of solute A is dissolved in 42.0 g of water, it depresses the freezing point by 0.2°C. The percentage association of solute A in water, is
[Given : Molar mass of $A=93 \mathrm{~g} \mathrm{~mol}^{-1}$. Molal depression constant of water is $1.86 \mathrm{~K} \mathrm{~kg} \mathrm{~mol}^{-1}$]vvv

Select the correct option:

A

50 %

B

60 %

C

70 %

D

80 %

✓ Correct! Well done.

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Solution

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