Which one of the alkaline earth metal carbona | vedclass

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(D) Thermal stability of alkaline earth metal carbonates increases as the size of the cation increases down the group.This is because the larger catio

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$BaCO_3$

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(D) Thermal stability of alkaline earth metal carbonates increases as the size of the cation increases down the group.This is because the larger cation stabilizes the large carbonate anion more effectively.The order of cationic size for the given alkaline earth metals is $Mg^{2+} Therefore,the order of thermal stability is $MgCO_3 Thus,$BaCO_3$ is the most thermally stable carbonate.

Which one of the alkaline earth metal carbonates is thermally the most stable?

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