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Grade: 12
        Acidified KMnO4 can be decolorized by a:So2. b:H2O2 C:Feso4 d:fe2so4
one year 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.
						
one year 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
						
one year 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.
4 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
4 months ago
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