The charge required for the reduction of 1 mole of `Cr_(2)O_(7)^(2-)` ions to `Cr^(3+)` is

Options

A. 1 F
B. 2F
C. 6 F
D. 4 F

Answer

C

Explanation

`Cr_(2)O_(7)^(2-) (aq) + 14 H^(+) (aq) + 6e^(-) to 2Cr^(3+) (aq) + 7H_(2)O (l)`