Which of the salts has the same value of van't Hoff factor 'i' as `K_(3)[Fe(CN)_(6)]`?

Options

A. `Al_(2)(SO_(4))_(2)`
B. `Al(NO_(3))_(3)`
C. `NaCl`
D. `Na_(2)SO_(4)`

Answer

B

Explanation

`Al(NO_(3))_(3)` has the same value of I as `k_(3)[Fe(CN_(6))]` i.e., I = 4
`Al(NO_(3))_(3) hArr Al^(3+) + 3NO_(3)^(-)`
`K_(3)[Fe(CN)_(6) ] hArr 3K^(+) + [Fe(CN)_(6)]^(3-)`