1. Tardigrade
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  3. Chemistry
  4. Peroxide ion is present in:

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Q. Peroxide ion is present in:

NTA AbhyasNTA Abhyas 2022

Solution:

$BaO_{2} \rightarrow Ba^{+ 2}+O_{2}^{- 2}$
Peroxide ion is a large anion which will be stabilised in the presence of a large cation. Barium ion being a large cation can stabilise a large cation.