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MgCO3 is thermally less stable than CaCO3.explain why?

MgCO3 is thermally less stable than CaCO3.explain why?

Grade:12th pass

4 Answers

Umakant Biswal
753 Points
7 years ago
caco3 is more stable than mgco3 beacuse thermal stability of carbonates of group 2 will increase down the group with the increase in the size of cation . 
this is beacuse longer cation will stabilize the larger carbonate ion . 
HOPE IT CLEARS 
regards 
kindly approve 
Khimraj
3007 Points
7 years ago
The thermal stability of carbonate of alkaline earth metal increases down the group. So carbonate of Ca is more stable than carbonate of Mg
Subho Sutradhar
11 Points
6 years ago
CaCo3 is larger in size compared to MgCo3.As we know larger cation can stabilize a larger anion better so obviously Caco3 is more stable than Mgco3
PRATYUSH MONDAL
13 Points
6 years ago
Ionic potential is more then thermal stability is less......we know that ionic potential=cataonic charge/cataionic redius....
mg has less cataionic redius than ca......thus it prooves

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