# Redox reactions KMnO4 changing to brown [closed]

If potassium permanganate is added to a solution and it becomes brown is the substance a reducing agent?

## closed as off-topic by andselisk♦, Jon Custer, Soumik Das, Tyberius, Todd MinehardtMar 1 at 22:56

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• Attribute the brown color to a compound, compare oxidation states before and after, and you get the answer. – andselisk Mar 1 at 6:28
• Permanganate is a strong oxidizier so most substances will be reducing agents in comparison. Even hydrogen peroxide. – FrankS Mar 1 at 9:59
• Brown in potassium permanganate reactions usually means you formed MnO2. The cure, If you want a nicer looking reaction forming Mn(II) ion in solution, is to add acid. If you render the balanced equations for permanganate reduction, you find you need a lot of acid to get to Mn(II). – Oscar Lanzi Mar 1 at 11:03

Yes, the substance is a reducing agent which will reduce $$\ce{KMnO4}$$ into $$\ce{MnO2 }$$ in neutral or weakly basic medium.