• # question_answer What is the oxidation number of chlorine in bleaching powder?

Chemical formula of bleaching powder is Oxidation no. of chlorine in $C{{l}^{-}}$ ion = - 1 Oxidation no. of chlorine ($x$) in $OC{{l}^{-}}$ ion = - 2 + $x$ = - 1, or $x$ = + 1 The average oxidation no. of $Cl=-1+1=0$.