Question
Question: The right order of the solubility of sulphates of alkaline earth metals is:...
The right order of the solubility of sulphates of alkaline earth metals is:
A
Be > Ca > Mg > Ba > Sr
B
Mg > Be > Ba > Ca > Sr
C
Be > Mg > Ca > Sr > Ba
D
Mg > Ca > Ba > Be > Sr
Answer
Be > Mg > Ca > Sr > Ba
Explanation
Solution
The solubility of sulphates of alkaline earth metal salts decreases down the group from Be to Ba. This is because of the fact that down the group with increasing size of cation the lattice energy as well as hydration energy also decreases but the change in hydration energy is more as compare to that of lattice energy.