Engineering
Chemistry
Chemical reactions of phenol
Electrophilic substitution
Question

For the identification of β-naphthol using dye test, it is necessary to use

alkaline solution of β-naphthol

dichloromethane solution of β-naphthol

neutral solution of β-naphthol

acidic solution of β-naphthol

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Solution

In alkaline solution it exists as anion which is very strongly activated towards AES reaction so dye formation takes place.