BeCO3decomposes at about 100°C while the other
group 2 carbonates require higher, temperatures for
decomposition.
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Answer:
The decomposition temperature is maximum for barium carbonate BaCO
3
, as it has maximum thermal stability.
Alkaline earth metal carbonates have less stability towards heat and decompose to carbon dioxide.
MCO
3
→MO+CO
2
On moving down the group, the stability of alkaline earth metal carbonates increases.
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