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Electronic Configuration of d-Block Elements

The no. of un...

Question

The no. of unpaired $e^{-}$ in ferrous ion is

A

5

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B

4

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C

3

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D

2

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Solution

The correct option is B 4
$F e^{2 +} \Rightarrow 3 d^{6} 4 s^{\circ}$

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