S Block Elements Question 95
Question: The correct order of thermal stability of hydroxides is:
Options:
A) $ Ba{{(OH)}_2}<Ca{{(OH)}_2}<Sr{{(OH)}_2}<Mg{{(OH)}_2} $
B) $ Mg{{(OH)}_2}<Sr{{(OH)}_2}<Ca{{(OH)}_2}<Ba{{(OH)}_2} $
C) $ Mg{{(OH)}_2}<Ca{{(OH)}_2}<Sr{{(OH)}_2}<Ba{{(OH)}_2} $
D) $ Ba{{(OH)}_2}<Sr{{(OH)}_2}<Ca{{(OH)}_2}<Mg{{(OH)}_2} $
Show Answer
Answer:
Correct Answer: D
Solution:
[d] Stability of ionic compounds decreases with decrease in lattice enthalpy. Thus stability of alkaline earth metal hydroxide- decreases with decrease in lattice enthalpy as the size of alkali earth metal cations increases down the group.
BETA
