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Which of the following has more unpaired d-electrons? (a) N^3+

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Which of the following has more unpaired d-electrons?

(a) N3+

(b) Fe2+ 

(c) Zn+

(d) Cu+

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1 Answer

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Best answer

Correct option (b) Fe2+ 

Explanation :

In Fe2+ there are 24 electrons and 2-electrons are removed from 4s-subshell.

There are 4-unpaired electrons in the 3d-subshell.

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