જો \({{\text{K}}_{\text{a}}}{\text{ }} = {\text{1}}{\text{.8}} \times {\text{1}}{{\text{0}}^{{\text{ - 5}}}}\,\,\,\,\,\,\,\,p{K_a} = 4.75\)
\( = 7 + \frac{1}{2} \times 4.75 + \frac{1}{2}\log 1.8 \times {10^{ - 2}} = \,\,7 + 2.37 - 0.87 = 8.5\)
$(a)$ $H _{2} C _{2} O _{4} \rightleftharpoons H ^{+}+ HC _{2} O _{4}^{-}$
$(b)$ $HC _{2} O _{4}^{-} \rightleftharpoons H ^{+}+ HC _{2} O _{4}^{2-}$
$(c)$ $H _{2} C _{2} O _{4} \rightleftharpoons 2 H ^{+}+ C _{2} O _{4}^{2-}$
$K _{ a _1}, K _{ a _2}$ અન $K _{ a _3}$ વચ્ચેનો સંબંધ એ નીચે આપેલ છે તે શોધો.