JEE PYQ: S Block Elements Question 18
Question 18 - 2020 (06 Sep Shift 1)
Among the sulphates of alkaline earth metals, the solubilities of $\text{BeSO}_4$ and $\text{MgSO}_4$ in water, respectively, are:
(a) poor and poor (b) high and poor (c) high and high (d) poor and high
Show Answer
Answer: (c)
Solution
$\text{BeSO}_4$ and $\text{MgSO}_4$ are readily soluble in water due to greater hydration enthalpies of $\text{Be}^{2+}$ and $\text{Mg}^{2+}$ ions, which dominate over their lattice enthalpies and therefore their sulphates are highly soluble.
BETA
