Question

The amount of charge in $F$ (Faraday) required to obtain one mole of iron from $F{e}_3{O}_4$ is _______ . (Nearest Integer)

Answer 1

Answer: 3

$F{e}_3{O}_4\stackrel{+8e^{-}}{\to }3Fe$
Charge for 1 mole $Fe=8/3F$
$=2.67F$