MCQ
Which of the following is paramagnetic?
- A$[Fe(CN)_6]^{4-}$
- B$[Ni(CO)_4]$
- C$[Ni(CO)_4]^{2-}$
- ✓$[CoF_6]^{3-}$

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What is relationship between $'\,B\,'$ and $'\,E\,'$ ?
