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NEET 2014
Exam
NEET
Year
2014
Subject
Chemistry
Chapter
Solutions

NEET 2014 · Chemistry · Solutions

Of the following 0.10m aqueous solutions, which one will exhibit...

Of the following 0.10m0.10m aqueous solutions, which one will exhibit the largest freezing point depression?

Options

  1. AKClKCl
  2. BC6H12O6{C}_{6}{H}_{12}{O}_{6}
  3. CA{l}_{2}{\left(S{O}_{4}\right)}_{3}
  4. DK2SO4{K}_{2}S{O}_{4}

Correct answer

C. A{l}_{2}{\left(S{O}_{4}\right)}_{3}

Step-by-step solution

Colligative properties are directly proportional to the number of solute particles.

On dissociation of Al2(SO4)3→2Al+3+3SO42−{Al}_{2}{\left({SO}_{4}\right)}_{3} \to 2{Al}^{+ 3} + 3{SO}_{4}^{2 -}

i=51=5i = \dfrac{5}{1} = 5

∆Tf=iKfm∆ {T}_{f} = i{K}_{f}m

ii is highest for Al2(SO4)3A{l}_{2}{\left(S{O}_{4}\right)}_{3}

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