Given below are two statements :
Statement I : Potassium permanganate on heating at 573K forms potassium manganate.
Statement II : Both potassium permanganate and potassium manganate are tetrahedral and paramagnetic in nature.
In the light of the above statements, choose the most appropriate answer from the options given below :
Statement I : Potassium permanganate on heating at 573K forms potassium manganate.
Statement II : Both potassium permanganate and potassium manganate are tetrahedral and paramagnetic in nature.
In the light of the above statements, choose the most appropriate answer from the options given below :
Show Hint
- Statement I is true but statement II is false
- Statement I is false but statement II is true
- Both statement I and statement II are false
- Both statement I and statement II are true
The Correct Option is A
Solution and Explanation
Statement II: both ions are tetrahedral, but \(\mathrm{MnO_4^-}\) has Mn in +7 state (\(3d^0\), no unpaired electron, diamagnetic) whereas \(\mathrm{MnO_4^{2-}}\) has Mn in +6 (\(3d^1\), one unpaired electron, paramagnetic). Permanganate is not paramagnetic, so Statement II is false.
Hence Statement I is true and Statement II is false.
Answer: (1) Statement I is true but statement II is false
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