The thermal stability of BaCO-3- CaCO-3- and MgCO-3- is-CaCO-3- - MgCO-3- - BaCO-3-MgCO-3- CaCO-3- - BaCO-3-BaCO-3- - MgCO-3- - CaCO-3-BaCO-3- - CaCO-3- - MgCO-3-

Question

Toppr Admin · Accepted Answer

On moving down the group of alkaline earth metals, the thermal stability of carbonates increases. As the atomic number increases, the difference in the stability of metal cation and the oxide anion increases. Thus, the stability of the decomposition product metal oxide decreases, as close packing is not possible. Hence, the stability of the carbonate increases. Thus, among the given carbonates, the order of thermal stability is $B a C O_{3} > C a C O_{3} > M g C O_{3}$ .

The thermal stability of BaCO3,CaCO3 and MgCO3 is:CaCO3>MgCO3>BaCO3MgCO3>CaCO3>BaCO3BaCO3>MgCO3>CaCO3BaCO3>CaCO3>MgCO3

The thermal stability of $B a C O_{3}, C a C O_{3}$ and $M g C O_{3}$ is:
$C a C O_{3} > M g C O_{3} > B a C O_{3}$
$M g C O_{3} > C a C O_{3} > B a C O_{3}$
$B a C O_{3} > M g C O_{3} > C a C O_{3}$
$B a C O_{3} > C a C O_{3} > M g C O_{3}$