JEE Main 2016 — S Block Elements Question with Solution
From: JEE Main 2016 (Online) 9th April Morning Slot
Question
The correct order of the solubility of alkaline-earth metal sulphates in water is :
Choose an option
Show full solutionCorrect option: D
Correct answer
DMg > Ca > Sr > Ba
Step-by-step explanation
The solubility of the sulphates in water decreases down
the group. Mg > Ca > Sr > Ba. MgSO4
is soluble, but
CaSO4 is sparingly soluble, and the sulphates of Sr, Ba and Ra are virtually insoluble. The significantly high solubility of MgSO4 is due to the high enthalpy of solvation
of the smaller Mg2+ ion.
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This is a previous-year question from JEE Main 2016, covering the S Block Elements chapter of Chemistry. PrepSharp catalogues every PYQ from JEE Main with a verified answer key and step-by-step solution prepared by IIT alumni — so you can search by chapter, topic or year and revise efficiently.