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Which one of the alkaline earth metal ca...

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

A

`MgCO_3`

B

`CaCO_3`

C

`SrCO_3`

D

`BaCO_3`

Text Solution

Verified by Experts

The correct Answer is:
D
As the electropositive character increases from Be to Ba. The stability of carbonates increases in the same order. Thus, the order of thermal stability is
`BaCO_3 gt SrCO_3 gt CaCO_3 gt MgCO_3 `
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