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The s-block Elements — Chemistry STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceChemistryThe s-block Elements1 Mark
MCQ
Which of the following element$(s)$ form stable superoxide?
  • A
    $K$
  • B
    $Rb$
  • C
    $Cs$
  • ✓
    All of these
✓

Answer

Correct option: D.
All of these
The superoxide $\mathrm{O}_2^{-}$ion is stable only in the presence of large cation such as $\mathrm{K}^{+}, \mathrm{Rb}^{+}, \mathrm{CS}^{+}$.

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