Which of the following 0.1 , M aqueous soluti | vedclass

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(A) The depression in freezing point $\Delta T_f$ is directly proportional to the van't Hoff factor $i$ for solutions of the same concentration $(C)$.

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Potassium sulfate

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(A) The depression in freezing point $\Delta T_f$ is directly proportional to the van't Hoff factor $i$ for solutions of the same concentration $(C)$.$\Delta T_f = i 	imes K_f 	imes m$.For $K_2SO_4$,$i = 3$ (as it dissociates into $2K^+ + SO_4^{2-}$).For $NaCl$,$i = 2$ (as it dissociates into $Na^+ + Cl^-$).For Urea and Glucose,$i = 1$ (as they are non-electrolytes).Since $K_2SO_4$ has the highest van't Hoff factor,it will show the maximum depression in freezing point.Therefore,the $0.1 \, M$ solution of $K_2SO_4$ will have the lowest freezing point.

Which of the following $0.1 \, M$ aqueous solutions has the lowest freezing point?

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