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Which of the following complex ion has a...

Which of the following complex ion has a magnetic moment same as `[Cr(H_(2)O)_(6)]^(3+)`?

A

`[Mn(H_(2)O)_(6)]^(4+)`

B

`[Mn(H_(2)O)_(6)]^(3+)`

C

`[Fe(H_(2)O)_(6)]^(3+)`

D

`[Cu(NH_(3))_(4)]^(2+)`

Text Solution

Verified by Experts

The correct Answer is:
a
`[Cr(H_2O)_6]^(3+) Cr^(3+)- 4s^0 3d^3`
`[Mn(H_2O)_6]^(4+) Mn^(+) - 4s^03d^3`
Same no . Of unpaired electrons.
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