The oxidation state of the most electronegative element in the products of the reaction between BaO2 and H2SO4 is:
A
0 and -1
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B
-1 and -2
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C
-2 and 0
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D
-2 and +1
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Solution
The correct option is B -1 and -2 Reaction between BaO2 and H2SO4 is as follows: BaO2+H2SO4→H2O2+BaSO4 −1−2 The most electronegative element is oxygen in both the products and its oxidation state is −1 and −2 respectively, in H2O2 and BaSO4.