NEET UG CHEMISTRY MCQ: d & f- BLOCK ELEMENTS

1 Easy

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Application +4 | -1

Which of following ions has electronic configuration

\left[ {Ar} \right]3{d^6}

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Correct option: D

C{O^{3 + }}

Option D is correct because Co3+ has the electronic configuration [Ar]3d⁶ after losing 3 electrons from its neutral state.

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