MCQ
The set which does not have ambidentate ligand(s) is
- ✓$C _2 O _4^{2-}$, ethylene diammine, $H _2 O$
- B$EDTA ^{4-}, NCS ^{-}, C _2 O _4^{2-}$
- C$NO _2^{-}, C _2 O _4^{2-}$, EDTA $^{4-}$
- D$C _2 O _4^{2-}, NO _2^{-}, NCS ^{-}$

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| List I (Complex) | List $II$ (Type of isomerism) |
| $A$. $\left[\mathrm{Co}\left(\mathrm{NH}_3\right)_5\left(\mathrm{NO}_2\right)\right] \mathrm{Cl}_2$ | $I$. Solvate isomerism |
| $B$. $\left[\mathrm{Co}\left(\mathrm{NH}_3\right)_5\left(\mathrm{SO}_4\right)\right] \mathrm{Br}$ | $II$. Linkage isomerism |
| $C$. $\left[\mathrm{Co}\left(\mathrm{NH}_3\right)_6\right]\left[\mathrm{Cr}(\mathrm{CN})_6\right]$ | $III$. Ionization isomerism |
| $D$. $\left[\mathrm{Co}\left(\mathrm{H}_2 \mathrm{O}\right)_6\right] \mathrm{Cl}_3$ | $IV$. Coordination isomerism |
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