MCQ
The most stable complex among the following is
- A${K_3}[Al{({C_2}{O_4})_3}]$
- B$[Pt{(en)_2}]C{l_2}$
- C$Ag{(N{H_3})_2}Cl$
- ✓${K_2}(Ni(EDTA)]$
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$Zn_{(s)} +Cu^{+2}_{(aq)} \to Zn^{2+}_{(aq)} +Cu_{(s)}$
$[E^o_{Cu^{+2 /Cu}} = 0.34\,V$ , $E^o_{Zn^{2+} /Zn} = -0.76\,V ]$

Product $(A)$ is
