Which of the following provides explanation for the ionic nature of `AlCl_3. 6H_2O` although we know that `AlCl_3` is covalent?
Which of the following provides explanation for the ionic nature of `AlCl_3. 6H_2O` although we know that `AlCl_3` is covalent?
A. Resonance
B. Concept of hydration energy
C. Concept of molecular orbitals
D. ionisation energy
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Correct Answer - B
Ionic nature of `AlCl_3. 6 H_2O` is explained on the basis of hydration energy released when `Al^(3+)` surrounded by `6H_2O` molecules. This energy compensates the high ionisation energy required for the formation of `Al^(3+)` from Al.
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