1.

Alkaline earth metal carbonates are decomposed on heating and produce residue. Thermal stability of reactant and residue will be - On moving down the group :-

Answer»

INCREASES and decreases respectively
Decreases and increases respectively
Increases and increases
Decreases and decreases

Solution :`MCO_(3) OVERSET(Delta)to MO+CO_(2)`
down the group, stability of carbonate `(uarr)`
stability of oxide `(DARR)`


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