JEE Main Chemistry question

Not in JEE Main or NEET syllabus

The correct order regarding the solubility of alkaline earth metal chlorides in water is:

(A)BeCl_2<MgCl_2<CaCl_2<SrCl_2<BaCl_2
(B)MgCl_2>CaCl_2>BeCl_2>BaCl_2>SrCl_2
(C)BaCl_2>CaCl_2>BeCl_2>MgCl_2>SrCl_2
(D)BeCl_2>MgCl_2>CaCl_2>SrCl_2>BaCl_2Correct

Answer: (D)

Solution

Like the corresponding sulphates and hydroxides-in-reverse, solubility of group 2 chlorides decreases steadily down the group as the increasingly large cation's hydration energy falls off while lattice energy (for this relatively small

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Question ID VK-138001