When KMnO4 reacts with KBr inalkaline medium gives bromate ion , then oxidation state of Mn changes from +7 to - a)+6 b) +4 c) +3 d) +2

Q. When $KMn{O}_4$ reacts with $KBr$ in alkaline medium gives bromate ion. Then oxidation state of $Mn$ changes from $+7$ to :

Q. When KMnO${}_4$ reacts with KBr in alkaline medium bromine ion is formed. The oxidation state of Mn changes from $+7$ to:

Q. During the titration of $KMn{O}_4$ with oxalic acid in acid medium, the oxidation number of $M{n}^{7+}$ changes to:

Q. Bromine reacts with the hot aqueous alkali to give bromide and bromate. What is the change that is brought about in the oxidation state of bromine to bromate?

Q. When $KMn{O}_4$ is reduced with oxalic acid in acidic medium, the oxidation number of $Mn$ changes from: