Multiple choice

How many doublet state are possible in [Mn(H2O)6]++ complexes?

  1. 7

  2. 11

  3. 5

  4. 3

  5. None of these
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A Correct answer
Explanation

This option is correct because the central metal atom of the complexes belong to the 3d5 configuration, which is correlated to ground state term of S6. These terms are split in to 11 excited states from which 4 is quartets excited and remaining 7 is doublet excited.

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