MCQ
In dilute alkaline solution, $MnO_4\,^-$ changes to
- A$MnO_4\,^{2-}$
- ✓$MnO_2$
- C$Mn_2O_3$
- D$MnO$
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$(a)$ $[Co(en)_2Cl_2]Br$
$(b)$ $[Pt(NH_3)_2Cl_2Br_2]$
$(c)$ $[Co(en)_3]Cl_3$
$(d)$ $[Pt(NH_3)_4Cl_2]$
$(e)$ $[Pt(NH_3)_2Cl_2]$