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Which one of the alkaline earth metal carbonates is thermally the most stable ? (a) MgCO_(3) (b) CaCO_(3) (c) SrCO_(3) (d) BaCO_(3) |
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Answer» Solution :THERMAL stability increases with the increase in the size of the cation present in the carbonate. The INCREASING order of the cationic size of the GIVEN alkaline earth metals is `Mg lt Ca lt Sr lt Ba`. HENCE, the increasing order of the thermal stability of the given alkaline earth METAL carbonates is, `MgCO_(3) lt CaCO_(3) lt SrCO_(3) lt BaCO_(3)` |
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