$5{H_2}{O_2} + \,xCl{O_2}\, + 2O{H^ - }\, \to \,xC{l^ - }\, + \,y{O_2} + 6{H_2}O$
$PC{l_5}\xrightarrow{\Delta }PC{l_3} + C{l_2}$
${N_2}{O_3}\xrightarrow{{R.T.}}NO + N{O_2}$