Q.

Which of the following aqueous solutions has osmotic pressure nearest to that of an equimolar solution of K4[Fe(CN)6]

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Na2SO4

BaCl2

Al2SO43

C12H22O11

answer is C.

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Detailed Solution

We know that the value of colligative property is directly proportional to number of particles of solute. Since K4[Fe(CN)6] and Al2(SO4)3 both form 5 ions on dissociation. Hence osmotic pressure of Al2(SO4)3 solution will be nearest to that of equimolar solution of K4[Fe(CN)6]

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