1.

Among the following series of transition metal ions, the one where all metal ions have 3d^2 electronic configuration is (At. nos. Ti = 22, V = 23, Cr = 24, Mn = 25)

Answer»

`TI^(3+),V^(2+),Cr^(3+), MN^(4+)`
`Ti^(+),V^(4+),Cr^(6+), Mn^(7+)`
`Ti^(4+) ,V^(3+),Cr^(2+),Mn^(3+)`
`Ti^(2+),V^(3+),Cr^(4+),Mn^(5+)`

Answer :D


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