S Block Elements Question 100
Question: The order solubility in water of alkaline earth metal sulphates down the group is $ Be>Mg>Ca>Sr>Ba $ . This is due to increases in
Options:
A) ionization energy
B) melting point
C) coordination number
D) All of these
Show Answer
Answer:
Correct Answer: C
Solution:
[c] In crystalline sulphates, the coordination number of the ions increases from $ Be $ to $ Ba $ and so also the lattice energy hence solubility in $ H_2O $ decreases.