Choose the Best Answer · Q14
Q.Assertion : Generally alkali and alkaline earth metals form superoxides
Reason : There is a single bond between O and O in superoxides.
a) both assertion and reason are true and reason is the correct explanation of assertion
b) both assertion and reason are true but reason is not the correct explanation of assertion
c) assertion is true but reason is false
d) both assertion and reason are false
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Start your 14-day free trial to unlock the full solution →Step 1. The assertion claims 'alkali AND alkaline earth metals generally form superoxides.' In fact, among alkali metals only K, Rb and Cs form the superoxide MO₂ (Li and Na do not); and among alkaline earth metals this unit describes only peroxide formation (2BaO + O₂ → 2BaO₂), not superoxide formation. So the assertion, as a blanket claim about BOTH families, is false. …
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