1.

when KMnO_4actsas an oxidizingagentandultimatclyformsMnO_(4)^(2-),MnO_2 ,Mn_2O_3andMn^(2+) then thenumberof electrons transferredin eachcaserespectivelty is

Answer»

4,3,1,5
1,5,3,7
1,3,4,5
3,5,7,1

Solution :`KMnO_4overset( +1e^(-)) tooverset( +6)((MnO_4)^(2-))`
` OVERSET(+7 )(KMn O_4 ) overset( +3e^(-)) tooverset(+4)(MnO_2)`
`overset(+7)(KMnO_4) overset( +4E^(-)) to(1)/(2) overset(+3)(Mn_2 O_3)`
` ( 2x -6 =0or x=3)`
` overset(+7 ) ( KMnO_4) overset(+e^(-))toMn^(2+)`


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