MCQ
The complex ion which has no $'d'$ electrons in the central metal atom is :
- A$[Co(NH_3)_6]^{3+}$
- B$[Fe(CN)_6]^{3-}$
- ✓$[Cr(H_2O)_6]^{3+}$
- D$[MnO_4]^-$
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| List-$I$ (Molecule) | List-$II$(Shape) |
| $A$ $\mathrm{NH}_3$ | $I$ Square pyramid |
| $B$ $\mathrm{BrF}_5$ | $II$ Tetrahedral |
| $C$ $\mathrm{PCl}_5$ | $III$ Trigonal pyramidal |
| $D$ $\mathrm{CH}_4$ | $IV$ Trigonal bipyramidal |
Choose the correct answer from the option below :