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Select the incorrect statement out of the following?

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Li is much harder than other alkali metals

m.p. and b.p. of Li are much higher than those of other alkali metals

Li is much less reactive than other alkali metals but strongest reducing agent among alkali metals

Li reacts with air on heating to produce Li₂O, Li₂O₂ and LiO₂

answer is D.

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Detailed Solution

Li burns in air on heating to produce Li₂O, Li₂O₂ and Li₃N. Here, Li₂O₂ is very less in amount.

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