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Why `Al Cl_(3)` is a covalent molecule but is ionized in water to give `Al^(+3)` and `Cl^(-)` ions ? |
Answer» `AlC_(3)` (anhydrous) is covalent because of very high ionisation energy required for formation of `Al^(+3)` . But in hydrated conditioin , this excessive energy is obtained by hydration energy of smaller `Al^(+3)` ion . | |