Right answer is (d) BaCO3
Thermal stability is directly proportional to the size of the cation i.e., larger the size of the atom, greater is its thermal stability. The biggest cation among the given compounds is Ba.
Thus, BaCO3 will be the most thermal carbonate among the given compounds followed by SrCO3, CaCO3 and MgCO3.
Answered by Abhisek | 1 year agoWhich one of the following alkali metals gives hydrated salts?
(a) Li
(b) Na
(c) K
(d) Cs
Which of the following alkali metals has the least melting point?
(a) Na
(b) K
(c) Rb
(d) Cs
How would you explain the following observations?
(i) BeO is almost insoluble but BeSO4 is insoluble in water.
(ii) BaO is soluble but BaSO4 is insoluble in water.
(iii) LiI is more soluble than KI in ethanol.
Write balanced equations for reactions between:
(a) Na2O2 and water
(b) KO2 and Water
(c) Na2O and CO2
Sodium is found to be more useful than potassium?