JEE Main 2016ChemistryS Block ElementsPhysiochemical Trends In Alkaline Earth MetalseasyMCQ

JEE Main 2016S 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 :

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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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About this question

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.