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Q.

Among the following series of transition metal ions, the one where all metal ions have 3d2 electronic configuration is

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a

Ti3+,  V2+, Cr3+, Mn4+

b

Ti+,  V4+, Cr6+, Mn7+

c

Ti4+,  V3+, Cr2+, Mn3+

d

Ti2+,  V3+, Cr4+, Mn5+

answer is D.

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Detailed Solution

Ti22 =  3d24s2,  Ti2+ =  3d2V23=3d34s2,  V3+=3d2Cr24=3d44s2,  Cr4+=3d2Mn25=3d54s2,  Mn5+=3d2
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