Question

Oxidation number of Cl in $CaOC{l}_2$ is ____________.

• A. $-1$ and $+1$
• B. $+2$
• C. $-2$
• D. none of these

Answer 1

The correct option is A $-1$ and $+1$

In $Ca\left(OCl\right)Cl$, two $Cl$ atoms are in different oxidation state i.e., one $C{l}^{-}$ in -1 oxidation state and other as $OC{l}^{-}$ in +1 oxidation state.