1.

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

Answer»

both assertion and reason are true and reason is the CORRECT explanation of assertion
both assertion and reason are true but reason is not the correct explanation of assertion
assertion is true but reason is false
both assetion and reason are false

Solution :AMONG alkali and alkaline earth metals, K, Rb and Cs ALONE forms superoxides. SUPEROXIDE `O_(2)` has 3 ELECTRON bond.


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