Chemistry - Complete s-block Question with Solution | TestHub
The trends in properties of alkaline earth metal salts can be explained by using Fajan's rule. It is associated with incorporation of covalent character in ionic bond. It states that smaller cations form more covalent compound and ionic character explains the solubility, thermal stability hydrolysis and other properties of these salts. Some exceptions are also there and are explained by change in lattice energy.
Correct order of increasing thermal stability of alkaline earth metal sulphates is
Which alkaline earth metal forms superoxide -
Options:
Answer:
Solution:
Alkaline earth metals typically form normal oxides (O) and peroxides (O₂). Superoxides (O₂) are generally formed by larger alkali metals (K, Rb, Cs) due to the stabilization of the large O₂⁻ ion by a large cation. Alkaline earth metals, even the largest ones like Ba, do not form stable superoxides. Therefore, none of the alkaline earth metals form superoxides.
Final Answer: The final answer is D