A green coloured solution of same salt changes its colour to light pink on passing ozone through it. Which of the following species represent pink and green colour respectively?
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a
MnO42− and MnO4−
b
Mn2+ and MnO2
c
MnO4−and MnO42−
d
Cu+and Cu2+
answer is C.
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Detailed Solution
O3 oxidizes MnO4⊖ (green) to MnO42− (pink) in basic medium.