When `SCN^(-)` is added to an aqueous solution containing `Fe(NO_(3))_(3)`, the complex ion produced is

Options

A. `[Fe(OH_2)_2(SCN)]^(2+)`
B. `[Fe(OH_2)_5 (SCN)]^(2+)`
C. `[Fe(OH_2)_8(SCN)]^(2+)`
D. `[Fe(OH_2)(SCN)]^(6+)`

Answer

B

Explanation

When `SCN^(-)` is added to an aqueous solution containing `Fe(NO_3)_3`, pentahydrated complex is formed. `Fe^(3+) + SCN^(-) + H_2O to [Fe(H_2O)_5SCN]^(2+)`.