Question

In which of the following compounds oxidation state of chlorine has two different values?

• A. $CaC{l}_2$
• B. $NaCl$
• C. $CaOC{l}_2$
• D. $CC{l}_4$

Answer 1

Answer: (C)

$CaOC{l}_2\to C{a}^{2+}+OC{l}^{-}+C{l}^{-}$
in $OC{l}^{-}$ (hypochlorite ion oxidation state of $Cl$)
$=-2+x=-1\Rightarrow x=+1$
In $C{l}^{-}$ oxidation state of chlorine $=-1$