The solution having lowest freezing point is

Question

The solution having lowest freezing point is (A) 0.1 M potassium chloride (B) 0.1 M potassium sulphate (C) 0.1 M potassium nitrate (D) 0.1 M aluminium sulphate

Tardigrade Admin · Accepted Answer

Depression in freezing point is a colligative property.
Higher the value of

i

, higher will be depression in freezing point and lowest will be the freezing point of solution.
For

K Cl, i = 2

K N O_{3}, i = 2

K_{2} S O_{4} i = 3

A l_{2} (S O_{4})_{3} i = 5

Q. The solution having lowest freezing point is

0.1 M potassium chloride

0.1 M potassium sulphate

0.1 M potassium nitrate

0.1 M aluminium sulphate

Depression in freezing point is a colligative property. Higher the value of i, higher will be depression in freezing point and lowest will be the freezing point of solution. For KCl,i=2 KNO3​,i=2 K2​SO4​i=3 Al2​(SO4​)3​i=5

Depression in freezing point is a colligative property.
Higher the value of $i$ , higher will be depression in freezing point and lowest will be the freezing point of solution.
For $K Cl, i = 2$
$K N O_{3}, i = 2$
$K_{2} S O_{4} i = 3$
$A l_{2} (S O_{4})_{3} i = 5$