$\mathop {Zn}\limits^0 \,\,\,\, \to \,\,\,\,\mathop {Zn}\limits^{ + 2} {\left( {CN} \right)_2}\,\,\,$(ઓક્સિડેશન)$\mathop {Ag}\limits^{ + 1} CN\,\,\,\, \to \,\,\,\mathop {Ag}\limits^0 $ (રિડક્શન)
${N_2}{O_3}\xrightarrow{{R.T.}}NO + N{O_2}$
$MnO_4^ - \,\, + \,\,{C_2}O_4^{2 - }\,\, + \,\,{H^ + }\, \rightarrow \,\,M{n^{2 + }}\, + \,C{O_2} + \,{H_2}O$