The coefficients w, x,y,z in the reaction w `Cr_(2)O_(7)^(2-) + xFe^(2+) to y Cr^(3+) + z Fe^(3+) + H_(2)O`

Options

A. w-1, x-2, y-6, z-6
B. w-6, x-1, y-2, z-4
C. w-1, x-6, y-2, z-6
D. w-1, x-2, y-4, z-6

Answer

C

Explanation

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