1.

The correct order of increasing thermal stability of `K_(2)CO_(3) , MgCO_(3) , CaCO_(3)and BeCO_(3)` isA. `K_(2)CO_(3) lt MgCO_(3) lt CaCO_(3) lt BeCO_(3)`B. `BeCO_(3) lt MgCO_(3) lt K_(2)CO_(3) lt CaCO_(3)`C. `BeCO_(3) lt MgCO_(3) lt CaCO_(3) lt K_(2)CO_(3)`D. `MgCO_(3) lt BeCO_(3) lt CaCO_(3) lt K_(2)CO_(3)`

Answer» Correct Answer - C
Stability increases as the basic character of the corresponding hydroxide increases , i.e., option (c) is correct .


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