1.

The atomic numbers of chromium and iron are 24 and 26 respectively. Which one of the following complexes exhibits paramagnetic character due to electronic spin?

Answer»

`[Fe(CO)_5]`
`[CR(NH_3)_6]^(3+)`
`[Fe(CN)_6]^(4-)`
`[Cr(CO)_6]`

ANSWER :B


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