MCQ
Complex which shows maximum conductivity amongst these :-
- ✓$[Co(NH_3)_5Cl]SO_4$
- B$[Co(NH_3)_5SO_4]Cl$
- C$CoCl_3.3H_2O$
- D$PtCl_4.2NH_3$
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$A$ and $B$ are :

$2 \mathrm{H}_{2} \mathrm{O} \rightarrow \mathrm{O}_{2}+4 \mathrm{H}^{\oplus}+4 \mathrm{e}^{-} ; \mathrm{E}_{\mathrm{red}}^{0}=1.23 \mathrm{V}$
$(\mathrm{R}=8.314 \;\mathrm{J} \mathrm{mol}^{-1} \mathrm{K}^{-1} ; \text { Temperature }=298 \;\mathrm{K} ;$ oxygen under std. atm. pressure of $1 \;bar$)