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Question
Which one of the following ions has electronic configuration [Ar] 3d6?
(At. no.: Mn = 25, Fe = 26, Co = 27, Ni = 28)
Options
Ni3+
Mn3+
Fe3+
Co3+
MCQ
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Solution
Co3+
Explanation:
The electronic configuration [Ar] 3d6 is found in Co3+ ion.
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