Multiple choice

Which statement(s) is/are false about A?

  1. It is a peroxide.
  2. It is paramagnetic in nature.
  3. On reaction with water, it produces a weak base.

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

  1. 1, 2, 3

  2. 1, 2

  3. 1, 3

  4. 2, 3

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

  A is KO2 and it is a superoxide, it is paramagnetic in nature  because of one unpaired electron in π*2p molecular orbital. It also produces KOH on reaction with water, which is a strong  base. So, only statement 2 is correct.

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