MCQ
The conjugate base of $H _2 PO _4^{-}$is:
- A$P _2 O _5$
- B$HPO _4^{2-}$
- C$PO _4^{3-}$
- D$H _3 PO _4$
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${A_2}(g)\, + \,{B_2}(g)\,\overset {{K_1}} \leftrightarrows \,2AB(g)\,\,\,......(1)$
$6AB\,(g)\,\,\overset {{K_2}} \leftrightarrows \,\,3{A_2}(g)\, + \,3{B_2}(g)......(2)$
The relation between $K_1$ and $K_2$ is