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Solutions question

2014 · Q91
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Solutions question

2014 · Q91

NEETChemistrySolutionsMCQ+4 / −1
Of the following 0.10 m aqueous solutions, which one will exhibit the largest freezing point depression?
  1. A
    KCl
  2. B
    C6H12O6
  3. C
    Al2(SO4)3
  4. D
    K2SO4
View written solutionFree

Correct answer: C

We know that depression in freezing point (Δ\Delta ΔTf ) is given as

Δ\Delta ΔTf = iKfm

So, Δ\Delta ΔTf ∝\propto∝ i

Thus, more value of i (Van’t Hoff factor), more will be depression in freezing point.

Al2(SO4)3 ⇌ 2Al+3 + 3SO42–

i is maximum i.e., 5 for Al2(SO4)3. .

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