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Q.

Acidic K2S2O8 can oxidize MnO2 to MnO4- and acidic K2S2O8 and acidic MnO2 oxidize I, Br, Cl to I2, Br2 and Cl2 respectively. From this information, the sequence that represents the correct order of increasing oxidation ability as

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a

I2 > K2S2O8 > Br2

b

acidic K2S2O8 > acidic MnO2 > Cl2

c

K2S2O8 > I2 > Br2

d

Cl2 > K2S2O8 > Br2

answer is B.

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Detailed Solution

Acidic K2S2O8 can oxidize MnO2 to MnO4-

K2S+62O8+2Mn+4O22KMn+7O4+2S+4O2

acidic K2S2O8 > acidic MnO2 > Cl2

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