Question

${K_2HgI_4}$ is $40\%$ ionised in aqueous solution. The value of its van't Hoff factor (i) is :

• A. 1.8
• B. 2.2
• C. 2
• D. 1.6

Answer 1

Answer: (A)

1.8

Answer 2

For ${K2[HgI4]}$
$i = 1+ 0.4 (3-1)$
$= 1.8$