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18/12/2021 12:10 pm
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The order solubility in water of alkaline earth metal sulphates down the group is Be > Mg > Ca > Sr > Ba. This is due to increases in
(a) ionization energy
(b) melting point
(c) coordination number
(d) All of these
1 Answer
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18/12/2021 12:11 pm
Correct answer: (c) coordination number
Explanation:
In crystalline sulphates, the coordination number of the ions increases from Be to Ba and so also the lattice energy hence solubility in H2O decreases.