A) hydrolysis of \[\text{FeC}{{\text{l}}_{\text{3}}}\]
B) acidic impurities
C) dissociation
D) ionization
Correct Answer: A
Solution :
\[\text{FeC}{{\text{l}}_{\text{3}}}\text{,}\]on hydrolysis gives acidic solution due to the presence of strong acid (HCl) and weak base \[\text{(Fe(OH}{{\text{)}}_{3}}\text{)}\]in the solution. \[FeC{{l}_{3}}\xrightarrow[{}]{3{{H}_{2}}O}\underset{\text{weak}\,\text{base}}{\mathop{Fe{{(OH)}_{3}}}}\,+\underset{\text{strong}\,\text{acid}}{\mathop{3HCl}}\,\] Hence, solution is acidic.
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