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 rarr K^(+)+Cl^(-)"( 2 ions)", NaCl rarr Na^(+) +Cl^(-)"( 2 ions)", K_(2)SO_(4) rarr 2K^(+)+SO_(4)^(2-)" (3 ions)".`