Which will show maximum depression in freezing point when eoncentration is $0.1 M$ .

N a C l

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U r e a

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G l u c o s e

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K_{2} S O_{4}

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Solution

The correct option is D $K_{2} S O_{4}$
The depression in the freezing point is a colligative property and depends on the number of solute particles present in the solution.
as
$Δ T_{f} = i K_{f} m$
$Δ T_{f} \propto i$

Urea and glucose do not dissociate in solution. Sodium chloride gives two ions and potassium sulphate gives three ions per formula unit.
Therefore, the effective number of particles is maximum in potassium sulphate , and it shows the maximum depression in freezing point.

thus, correct answer is D.

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Which will show maximum depression in freezing point when eoncentration is 0.1 M.

Which will show maximum depression in freezing point when eoncentration is $0.1 M$ .