Question

. Out of Im solution of following dissolved in water
Which one will have lowest freezing point (assuming
all are fuel, ionised)
(a) Urea
(b) NaCl
(c) Na,SO4
(d) AL(SO2)3
​

Answer 1

Answer:

4th option

Explanation:

Urea is an non electrolyte.

In NaCl Na2SO4 and Al(SO2)3 , the last option has highest no of ions, which is vant hoff factor.

The higher the vant hoff factor, highet the depression in freezing point.

Therefore, 4th option