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Q. Aqueous solution of $ AlCl_{3} $ is:

Rajasthan PMTRajasthan PMT 2002Equilibrium

Solution:

$AlCl _{3}+3 H _{2} O \rightleftharpoons \underset{\text { Weak base }}{ Al ( OH )_{3}}+\underset{\text { Strong acid }}{3 HCl }$
Aqueous solution of $AlCl _{3}$ is a solution of strong acid $( HCl )$ and weak base $\left( Al ( OH )_{3}\right)$. Thus, the resultant solution will be acidic.