AIIMS 2019 Chemistry Solubility MCQ Question
Higher the hydration energy of a compound, higher will be its solubility. Be²⁺ has highest hydration energy, therefore, its solubility is maximum.
Correct Answer
Detailed Explanation
Be²⁺ has a high hydration energy due to its small ionic radius and high charge density, which allows it to interact strongly with H₂O molecules, leading to significant solvation. However, despite its high hydration energy, Be²⁺ has limited solubility in water because it forms a stable hydrated complex that does not readily dissociate into free ions. Other options are not applicable in this context, as they do not provide relevant information or alternatives regarding the solubility of Be²⁺. Understanding the balance between hydration energy and the stability of ionic compounds in solution is crucial for predicting solubility behavior.
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