\({\mathop {Br}\limits^0 _2}\,\,\,\, \to \,\,\,\,B{r^ - }\) (રિડક્શન)
\({\mathop {Br}\limits^0 _2}\, \to \,\mathop {Br}\limits^{ + 5} O_3^ - \) (ઓક્સિડેશન)
$xCu\,\,\, + \,\,\,\,yHN{O_3}\,\,\, \to \,\,\,\,xCu{\left( {N{O_3}} \right)_2}\,\,\, + \,\,\,NO\,\,\,\, + \,\,\,N{O_2}\,\,\, + \,\,\,3{H_2}O$ તે સર્હીુણકો $x$ અને $y$ શું હશે ?