AIIMS 2017 Chemistry Hydration Reactions MCQ Question
Arrange the following in the order of increasing value of the equilibrium constant for hydration, (smallest value first)
Correct Answer
Detailed Explanation
In structure (1), there is significant strain due to unfavorable interactions, leading to higher energy. Structure (3) reduces this strain through better stabilization but is still less optimal than structure (2), which maximizes hydration effects by effectively solubilizing ions in H₂O, thus minimizing strain the most. Options (A), (B), and (C) incorrectly suggest that structures (3) and (1) are more favorable than (2), which contradicts the principle that hydration significantly lowers energy and strain in ionic compounds.
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