Give reason for, 'NaHCO_(3) is known in solid state but Ca(HCO_(3))_(2) is not isolated in solid state.

Give reason for, 'NaHCO_(3) is known in solid state but Ca(HCO_(3))_(2

1.	Give reason for, 'NaHCO_(3) is known in solid state but Ca(HCO_(3))_(2) is not isolated in solid state.
Answer» Solution :The sodium bicarbonate `(NaHCO_(3))` is highly stable to HEAT. As the electropositive CHARACTER increases, the stability also increases. So `NaHCO_(3)` is known to EXIST as solid whereas `Ca(HCO_(3))_(2)` is soluble in water. All the carbonates of alkali metals are more soluble in the atmosphere of `CO_(2)` and form bicarbonates. THEREFORE, they cannot be isolated in the solid state.