Carbonates and bicarbonates of alkali metals soluble in water and are thermally stable. Give reason.

Carbonates and bicarbonates of alkali metals soluble in water and are

1.	Carbonates and bicarbonates of alkali metals soluble in water and are thermally stable. Give reason.
Answer» SOLUTION :As the ELECTROPOSITIVE character INCREASES down the group, the stability of the carbonates and bicarbonates increases. The is is due to the decrease in POLARISING power of alkali metal cations.