Which of the following compounds are readily soluble in water?
Choose the correct option
1. (a, b)
2. (b, c)
3. (c, d)
4. (a, d)
Solubility of sulphates of alkaline earth metals in water decreases from Be to are fairly soluble while is almost completely insoluble.
The decreasing solubility of to can be explained on the basis of decreasing hydration energy from Be2+ to Ba2+ (as size increases). For BeSO4 and MgSO4, hydration energy is more than lattice energy and so they are readily soluble.