The correct sequence of thermal stability of the following carbonates is:
Nature of carbonates of alkaline earth metals -
Insoluble in neutral medium but soluble in acid medium thermal stability
-
Reaction of carbonate of alkaline earth metals on heating -
Decompose to give and oxide
- wherein
Formation of carbonates of alkaline earth metals -
When is passed through solution of alkaline metal hydroxides
- wherein
Thermal stability of carbonates increases in a group as we move from top to bottom & decreases in a period as we move from left to right.
Down the group, polarizing power of cation decreases, thus bond is more ionic & thus thermal stability increases.
Option 4)
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