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Q.

In which of the following pairs, the outer most electronic configuration will be the same?

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a

Cr+ and Mn2+

b

Ni2+ and Cu+

c

Fe2+ and Co+

d

V2+ and Cr+

answer is D.

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Detailed Solution

Eletronic configuration of  Cr+ = [Ar] 3d54s0 also  Mn2+ = [Ar] 3d54s0

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