(Highest oxidation state)
\((2)\,{[Ni\mathop {C{l_4}}\limits^{ - 1} ]^{2 - }}\,\,Ni = + 2;\,{[Co\mathop {C{l_4}}\limits^{ - 1} ]^{2 - }}\,\,Co = + 2\)
\((3)\,{[Fe{(\mathop {CN}\limits^{ - 1} )_6}]^{3 - }}\,\,Fe = + 3;\,{[Cu{(\mathop {CN}\limits^{ - 1} )_4}]^{2 - }}\,\,Cu = + 2\)
\((4)\,{[Fe\mathop {C{l_4}}\limits^{ - 1} ]^ - }\,\,Fe = + 3;\,C{o_2}\mathop {{O_3}}\limits^{ - 2} \,Co = + 3\)
$2KMn{O_4}\,\,\, + \,\,\,\,2KOH\,\,\,\,\,\,\, \to \,\,\,\,\,2{K_2}Mn{O_4}\,\,\, + \,\,\,{H_2}O\,\,\, + \,\,\,O$ તો $KMnO_4$ નો તુલ્યભાર કેટલો થાય ?
(પ.ભાર : $K = 39, Mn = 55, O = 16$)
$MnO_4^ - \,\, + \,\,{C_2}O_4^{2 - }\,\, + \,\,{H^ + }\, \rightarrow \,\,M{n^{2 + }}\, + \,C{O_2} + \,{H_2}O$
${P_4} + 10C{l_2}\xrightarrow{\Delta }PC{l_5}$