MCQ
Choose the statement that besi: describes given compounds


- ✓$1, 3, 4$ represent same compound
- B$1$ and $3$ are isomer of $2$ and $4$
- C$1, 4$ are isomer of $2$ and $3$
- DAll the structure represent the same compound

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(Atomic no. : $B = 5,S = 16,Ni = 28,Xe = 54$)
$(i)\, [Co(en)_2(Ox)]^+$
$(ii)\, [Fe(Trien)(Ox)]^+$
$(iii)\, [Ca(EDTA)]^{-2}$
$(iv)\, [Pt(Ox)_2 (H_2O)_2]$