JEE Main levelSingle correct optionDifficulty 2 of 3si252
The compound shown gives a violet colour with neutral FeClX3. Which of the structures shown does NOT give a coloured complex with neutral FeClX3?
AStructure A
BStructure B
CStructure C
DStructure D
Answer: C
Neutral FeClX3 gives a coloured complex with a free phenolic OH. A (salicylic acid), B (o-cresol) and D (resorcinol) all have a free phenolic OH. C (anisole) has the OH capped as an ether, so no colour.