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Correct statement/s among the following is/are

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Among the IA metals, Li, does not form alums

K₂CO₃is better air purifier than Na₂CO₃

Sodium bicarbonate is used as a fire extinguisher

Among the carbonates of IA, Li₂CO₃ does exists in solid state

answer is A, B, D, C.

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Detailed Solution

Due to small size Li never forms Alums

sodium bicarbonate will decompose to give carbon dioxide,hence used in fire extinguisher

Lithium carbonate can exist as solid, but Lithium bicarbonate does not

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