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Crystal field theory provides correct el...

Crystal field theory provides correct electronic distribution of central metal under surrounding ligannd field, hence it clearly explains magnetic moment, colour of a complex.
Q. Which of the following hydrated complex ion has high intensity colour in aqueous solution.

A

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

B

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

C

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

D

`[Mn(H_(20O)_(6)]^(2+)`

Text Solution

Verified by Experts

The correct Answer is:
A
In `[Mn(H_(2)O)_(6)]^(3+)`: Both selection rules are followd due to unsymmetrical filling of `e_(g)` set of orbitals.
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