MCQ
Which of the following compounds have highest melting point?


- AOnly I
- BOnly II
- CI and II
- DII and III

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$(A)\,\, KO_2$
$(B)\,\,$ cis $-[Co(en)_2Cl_2]^+$
$(C)\,\, K_3[Co(Ox)_3]$
$(D)\,\,[CoCl_3]^{2-}$
$T{i^{4 + }} + e \to T{i^{3 + }},\,{E^o} = - xV$,
$F{e^{3 + }} + e \to F{e^{2 + }},\,{E^o} = - yV$,
$\{$ where $x < y$ point out the wrong statement