JEE Main 2016 · 9 Apr · Shift 1 · Chemistry Q44

ChemistrySingle correct+4 / -1Question 44 of 90

The correct order of the solubility of alkaline-earth metal sulphates in water is :

Mg < Ca < Sr < Ba

Mg < Sr < Ca < Ba

Mg > Sr > Ca > Ba

Mg > Ca > Sr > Ba

Answer and worked solution

Official answer: D

Lattice enthalpy stays nearly constant while hydration enthalpy falls down the group, so solubility decreases: Mg > Ca > Sr > Ba.

JEE Main 2016 · 9 Apr · Shift 1, Chemistry question 44