JEE MAIN - Chemistry (2021 - 25th February Morning Shift - No. 13)

In which of the following pairs, the outer most electronic configuration will be the same?
Cr+ and Mn2+
Ni2+ and Cu+
V2+ and Cr+
Fe2+ and Co+

Explanation

Cr+ $$ \to $$ [Ar]3d5

Mn2+ $$ \to $$ [Ar]3d5

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