Periodic Classification and Periodic Properties 2 Question 23
«««< HEAD
23. The hydration energy of $\mathrm{Mg}^{2+}$ is larger than that of
======= ####23. The hydration energy of $\mathrm{Mg}^{2+}$ is larger than that of
3e0f7ab6f6a50373c3f2dbda6ca2533482a77bed (a) $\mathrm{Al}^{3+}$
(b) $\mathrm{Na}^{+}$
(c) $\mathrm{Be}^{2+}$
(d) $\mathrm{Mg}^{3+}$
(1984, 1M)
Show Answer
Answer:
Correct Answer: 23. (a)
Solution:
- Hydration energy depends on charge of ion and ionic radius. Higher the charge, greater the hydration energy. On the other hand, smaller the size, greater the hydration energy. Charge is considered first for comparison. Hence, $\mathrm{Mg}^{2+}$ has higher hydration energy than $\mathrm{Na}^{+}$.
