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Q.
Which one of the following statements about compounds of lithium is false?
The s-Block Elements
Solution:
Lithium forms an oxide $Li _{2} O$, but not the peroxide or super oxide, because strong polarising power of small sized $Li ^{+}$ ion is strong enough to restrict the oxidation of an oxide ion $O ^{2-}$ to the peroxide ion, $O _{2}^{2-}$.