Which of the following 0.1M aqueous solution will have the lowest freezing point?

Options

A. Potassium sulphate
B. Sodium chloride
C. Urea
D. Glucose

Explanation

In case of `K_(2)SO_(4)`, we get two `K^(+)` and one SO_(4)^(2-)` ions. A total of three ions which is maximum number of particles formed in any of the given substances. `(i_(NaCl)=2),(i_("glucose")=1)`
Hence `K_(2)SO_(4)` has maximum `DeltAT_(f)` or maximum freezing point.
Hence, has maximum or maximum freezing point.