Question

When xo2 is fused with an alkali metal hydroxide in presence of an oxidising agent such as kno3, a dark green product is formed which disproportioates in acidic solution to afford a dark purple solution. X is?

Answer 1

solution:      

                     

MnO₂+KOH     →              K₂MnO₄      →     KMnO₄

                                      (Dark Green)        (Dark Purple)

x is Mn(Manganese)