99 Percentile Qs Bank for JEE MainChemistryp Block Elements (Group 13 & 14)
Aluminium chloride exists as dimmer, 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
Options
- AA l 2 O 3 + 6 H C l
- BA l 3 + + 3 C l -
- CA l O H 6 3 - + 3 H C l
- DA l H 2 O 6 + 3 + 3 C l -
Correct answer
D. A l H 2 O 6 + 3 + 3 C l -
Step-by-step solution
A l C l 3 is covalent but in water, it become ionic due to large hydration energy it dissociated as follows A l C l 3 + 6 H 2 O ⇌ A l H 2 O 6 3 + + 3 C l -