Pick out the incorrect statement: (1) \( \mathrm{KMnO}_{4}^{2-} \) is quite strongly oxidizing a...

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Pick out the incorrect statement:
(1) \( \mathrm{KMnO}_{4}^{2-} \) is quite strongly oxidizing and stable only in very strong alkalies. In dilute alkali, water or acidic solution, it disproportionates.
(2) In acidic solutions, \( \mathrm{MnO}_{4}^{-} \)is reduced to \( \mathrm{Mn}^{2+} \) and thus, \( \mathrm{KMnO}_{4} \) is widely used as oxidising agent
(3) \( \mathrm{KMnO}_{4} \) does not acts as oxidising agent in alkaline medium.
(4) \( \mathrm{KMnO}_{4} \) is manufactured by the fusion of pyrolusite ore with \( \mathrm{KOH} \) in presence of air or \( \mathrm{KNO}_{3} \), followed by electrolytic oxidation in alkaline solution.
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