The values of van't Hoff factors for KCl, NaCl and `K_2SO_4` , respectively , are ___

Options

A. 2,2 and 2
B. 2,2 and 3
C. 1,1 and 2
D. 1,1 and 1

Answer

B

Explanation

`KCl to K^(+) + Cl^(-)`, thus, i=2
`NaCl to NA^(+) + Cl^(-)` , thus, i=2
`K_2SO_4 to 2K^(+) + SO_4^(2-)` thus, i=3