Which one of the following is the ratio of th | vedclass

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(A) The lowering of vapour pressure is a colligative property,which is directly proportional to the van't Hoff factor $(i)$ for the same molar concent

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$3 : 2 : 5$

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(A) The lowering of vapour pressure is a colligative property,which is directly proportional to the van't Hoff factor $(i)$ for the same molar concentration of solute.$BaCl_2 \rightarrow Ba^{2+} + 2Cl^-$; $i = 3$$NaCl \rightarrow Na^+ + Cl^-$; $i = 2$$Al_2(SO_4)_3 \rightarrow 2Al^{3+} + 3SO_4^{2-}$; $i = 5$Since the concentration is the same $(0.1 \ M)$ for all,the ratio of the lowering of vapour pressure is equal to the ratio of their van't Hoff factors.Therefore,the ratio is $3 : 2 : 5$.

Which one of the following is the ratio of the lowering of vapour pressure of $0.1 \ M$ aqueous solutions of $BaCl_2, NaCl$ and $Al_2(SO_4)_3$ respectively?

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