Multiple choice

Oxidation state of the central atom in A and B are _______ and _______ respectively.

 A + H2O → C + H2O2 + O2
 B + H2O → C
 2B → D + 2K (At 670K)
 K is pottasium

    • 1, + 4
    • 4, + 1
    • 1, + 1
    • 4, + 4

  5. None of these
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

 A and B are KO2 and K2O respectively. As KO2 is a superoxide, oxidation number of K in it is +1, and in K2O the oxidation number is +1.

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