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Which one of the following ionic species...

Which one of the following ionic species will impart colour to an aqueous solution ?

A

`Ti^(+4)`

B

`Cu^(+)`

C

`Zn^(+2)`

D

`Cr^(+3)`

Text Solution

Verified by Experts

The correct Answer is:
D
`Ti^(4)=[Ar]4s^(0)3d^(0)(0" unpaired "e^(-))`
`Cu^(+)=[Ar]4s^(0)3d^(10)(0" unpaired "e^(-))`
`Zn^(+2)=[Ar]4s^(0)3d^(10)(0" unpaired "e^(-))`
`Cr^(+3)=[Ar]4s^(0)3d^(3)(3" unpaired "e^(-))`
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