CameraIcon
CameraIcon
SearchIcon
MyQuestionIcon


Question

Identify the correct order of solubility in aqueous medium:
  1. BeSO4>CaSO4>MgSO4>BaSO4 
  2. BeSO4<CaSO4<MgSO4<BaSO4 
  3. CaSO4<BeSO4<MgSO4<BaSO4 
  4. BeSO4>MgSO4>CaSO4>BaSO4 


Solution

The correct option is D BeSO4>MgSO4>CaSO4>BaSO4 
As we move down the group, size increases (Be<Mg<Ca<Ba). Solubility depends on the hydration energy and the latiice energy. Generally, as the difference in size of the cation and the anion increases, hydration energy dominates and solubility increases. Whereas, as the difference decreases, lattice energy dominates and solubility decreases. 
So, here we have SO24 anion whose size is large and as we move down the group, size difference decreases and hence solubility decreases.

Hence the order is : BeSO4>MgSO4>CaSO4>BaSO4

flag
 Suggest corrections
thumbs-up
 
0 Upvotes


Similar questions
View More


People also searched for
View More



footer-image