S Block Elements Question 123
Question: $ BeF_2 $ is soluble in water whereas fluorides of other alkaline earth metals are insoluble because of
Options:
A) ionic nature of $ BeF_2 $ .
B) covalent nature of $ BeF_2 $ .
C) greater hydration energy of $ B{{e}^{2+}} $ ion as compared to its lattice energy.
D) none of these.
Show Answer
Answer:
Correct Answer: C
Solution:
[c] $ B{{e}^{2+}} $ being small in size is heavily hydrated and heat of hydration exceeds the lattice energy. Hence $ BeF_2 $ is soluble in water.
BETA
