Question

$6$ mol of $C{l}_2$ undergo a loss and gain of $10$ mol of electrons to form two oxidation states of Cl. Write down the oxidation number of Cl having positive charge.

Answer 1

6 mol of $C{l}_2$ undergo a loss and gain of 10 mol of electrons to form two oxidation states of Cl which are $C{l}^{5+}$ and $C{l}^{-}$
The reduction half reaction is as follows:
$5C{l}_2+10e^{-}\to 10C{l}^{-}$
The oxidation half reaction is as follows:
$C{l}_2\to 2C{l}^{+5}+2e^{-}$
The overall reaction is given below:
$6C{l}_2\to 10C{l}^{-}+2C{l}^{+5}$
Hence, the oxidation state of $Cl$ having positive charge is $+5$.