The magnetic behaviour of manganate ion and permanganate ions, respectively, are
Answer & explanation
Correct answer: option 3
The correct answer is Option (3) → paramagnetic and diamagnetic
Manganate ion, MnO₄²⁻
- Oxidation state of Mn = +6
- Mn atomic number = 25
- Mn⁶⁺ configuration: 3d¹
- Since there is one unpaired electron, it is paramagnetic.
Permanganate ion, MnO₄⁻
- Oxidation state of Mn = +7
- Mn⁷⁺ configuration: 3d⁰
- No unpaired electrons → diamagnetic
So the answer is Option (3)
- Manganate ion → Paramagnetic
- Permanganate ion → Diamagnetic