Question

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

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

Answer 1

Answer: (A)

Potassium sulphate

Answer 2

$K_2SO_4 : i=3$ NaCI : i=2 Urea :i=1 Glucose : i=1 Greater the value of i, greater the lowering in freezing point, lower will be the freezing temperature, if molarity in all cases are same. Therefore, K$_2SO_4$ solution has the lowest freezing point