Inorganic Chemistry> Acidified KMnO4 can be decolorized by a:S...

Acidified KMnO4 can be decolorized by a:So2. b:H2O2 C:Feso4 d:fe2so4

Ayush , 8 Years ago

Grade 12

4 Answers

Pooja

Last Activity: 8 Years ago

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.

Suraj Singh

Last Activity: 8 Years ago

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

Nishith

Last Activity: 7 Years ago

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.

Nishith

Last Activity: 7 Years ago

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