question_answer

Aluminium chloride exists as dimer,\[A{{l}_{2}}C{{l}_{6}}\]in solid state as well as in solution of non-polar solvents such as benzene. When dissolved in water, it gives

A) \[A{{l}^{3+}}+3C{{l}^{-}}\]                           

B) \[{{[Al{{({{H}_{2}}O)}_{6}}]}^{3+}}+3C{{l}^{-}}\]

C) \[{{[Al{{(OH)}_{6}}]}^{3+}}+3HCl\]

D)        \[A{{l}_{2}}{{O}_{3}}+6HCl\]

Correct Answer: B

Solution :

is covalent but in water, it become ionic due to large hydration energy of.