Ncert Exercises & Solutions

The values of van’t Hoff factors for KCl, NaCl and K₂SO₄ respectively are:

1.	2, 2 and 2	2.	2, 2 and 3
3.	1, 1 and 2	4.	1, 1 and 1

Number of total ions present in the solution is known as van't Hoff factors (i).

Substances

van't Hoff factor (i)

For KCl

For NaCl

For K₂SO₄

Hence, correct choice is (b).