Q.
Acidified KMnO4 is decolourized by _____?
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a
Br2
b
O3
c
HCl
d
Br
answer is A.
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Detailed Solution
Following redox reaction occursKMnO4+Br2+H+→Mn+2 + Br-+H2OThe purple colour of KMnO4 is gone when it is converted into colourless Mn+2
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