Q50 / 180 · AIIMS 2016 · Chemistry

Assertion : Generally alkali and alkaline earth metals form superoxides. Reason : There is a single bond between $\mathrm{O}$ and $\mathrm{O}$ in superoxides.

  • A
    If both assertion and reason are true and reason is the correct explanation of assertion.
  • B
    If both assertion and reason are true but reason is not the correct explanation of assertion.
  • C
    If assertion is true but reason is false.
  • Correct answer
    D
    If both assertion and reason are false.

Solution

Only K, Rb and Cs from alkali metals form superoxides and superoxides possess three electron bond $(: \ddot{\mathrm{O}} \cdots$

Hence, the correct answer is option: 'D'.

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