NEET Chemistry The s-Block Elements Questions Solved


Which one of the following about compounds of lithium is false –

(A) The hydroxide, carbonate, nitrate decomposed to give the oxide on heating

(B) It is the most electronegative element of group IA

(C) The hydrogen carbonate cannot be isolated as a stable solid

(D) It forms  a superoxide

(D). Lithium forms an oxide Li2O, 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 O2- to the peroxide ion, O22-.

Difficulty Level:

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