Q. On reacting with neutral ferric chloride, phenol gives
A) Red colour
B) Blue colour
C) Violet colour
D) Green colour
Explanation
(c)
Phenol reacts with neutral $FeCl_{3}$ solution to give violet colour complex which is soluble in water.
$6C_{6}H_{5}OH + FeCl_{3} \rightarrow \left\lbrack Fe\left( OC_{6}H_{5} \right)_{6} \right\rbrack^{3 -} + 3H^{+} + 3HCl$
violet colour complex
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.