Question

How much charge is required for the oxidation of $1$ mole of $S_2{O}_3^{-2}$ to $S_4{O}_6^{-2}?$

• A. $96500C$
• B. $48250C$
• C. $386000C$
• D. $193000C$

Answer 1

Answer: (A)

$\underset{\left(+2\right)}{S_2{O}_3^{-2}}\to \underset{\left(+2.5\right)}{S_4{O}_6^{-2}}$
$n=(2.5-2)\times 2$
$=1$
$1$ mole $\to 1F$