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

2

2

3

 
Hence, correct choice is (b).