A) red colour
B) blue colour
C) violet colour
D) green colour
Correct Answer: C
Solution :
Phenol reacts with neutral\[\text{FeC}{{\text{l}}_{\text{3}}}\]solution to give violet colour complex which is soluble in water. \[6{{C}_{6}}{{H}_{5}}OH+FeC{{l}_{3}}\xrightarrow{{}}\underset{\text{violet}\,\text{colour}\,\text{complex}}{\mathop{{{[Fe{{(O{{C}_{6}}{{H}_{5}})}_{6}}]}^{3-}}}}\,\] \[+\,3{{H}^{+}}+3HCl\]
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