Q. Which of the following ions, will have maximum hydration energy?
A) $Sr^{2 +}$
B) ${Ba}^{2 +}$
C) ${Ca}^{2 +}$
D) $Mg^{2 +}$
Explanation
(d)
Hydration energy of smaller cations are higher than those of larger cations, hence $Mg^{2 +}$ has maximum hydration energy among these.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.