Multiple choice

Assertion: In complex [Mn(H2O)6]+2, the d-d transitions are spin allowed. Reason: Each of the d-orbitals of Mn(II) is singly occupied.

There are two statements, Assertion (A) and Reason (R). Consider both the statements independently and mark your answer as under:

1. A and R are both correct and R is the correct explanation of A.
2. A and R are both correct and R is not the correct explanation of A.
3. A is correct and R is incorrect.
4. A is incorrect and R is correct.
5. A and R are both incorrect.

  1. A and R are both correct and R is the correct explanation of A.

  2. A and R are both correct and R is not the correct explanation of A.

  3. A is correct and R is incorrect.

  4. A is incorrect and R is correct.

  5. A and R are both incorrect.
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

This option is correct because in case of [Mn(H2O)6]+2, the d-d transitions are spin forbidden because each of the d-orbitals is singly occupied (half filled) and the spin multiplicity changes when the electron goes to an excited state from ground state.

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