NTA Abhyas NEET2020Chemistryp Block Elements (Group 13 & 14)Practice
The aqueous solution of A l C l 3 is acidic due to the hydrolysis of
Options
- Aaluminium ion
- Bchloride ion
- Cboth aluminium and chloride ions
- Dnone of the above
Correct answer
A. aluminium ion
Step-by-step solution
The aqueous solution of A l C l 3 is acidic due to the hydrolysis of aluminium ion. Al 3+ + 6H 2 O → Al(H 2 O) 6 3+ + 3Cl − Al(OH 2 ) 6 3+ Salt hydrolysis +   H 2 O → Al(H 2 O) 5 (OH) 2+ + H 3 O + Acidic C l - does not hydrolyse.