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Grade: 12
        Acidified KMnO4 can be decolorized by a:So2. b:H2O2 C:Feso4 d:fe2so4
2 years ago

Answers : (4)

Pooja
17 Points
							Acidified KMnO4 can be decolorized by SO2.Potassium permanganate has a purple colour. Sulphur dioxide is a reducing agent. Potassium permanganate is an oxidizing agent. When sulphur dioxide reacts with potassium permanganate the solution decolourizes. colour changes from Purple to transparent(Colourless). Reason : Potassium permanganate gets reduces by sulphur dioxide.
						
2 years ago
Suraj Singh
148 Points
							SO2 can decolourises acidic KMnO4...  The  colour of KMnO4 is Violet which changes to colourless..  It is a test of presence of SO2 gas ..  Hope U like it
						
2 years ago
Nishith
14 Points
							
So2 has extra unpaired electron since kmno4 is purple colour as it has a single unpaired electron
It combines and forms a stable compound which is colourless even Cl gas and CO can be used.
8 months ago
Nishith
14 Points
							
KMnO4 has an unpaired electron when compounds like SO2 is made to react it oxidised and it will form a colourless mixture even Cl gas and CO will produce the same effect
8 months ago
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