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9. Amines — Chemistry STD 12 Science — Question

CBSE BoardEnglish MediumSTD 12 ScienceChemistry9. Amines1 Mark
MCQ
For the identification of $\beta$-naphthol using dye test, it is necesary to use : 
  • A
    dichloromethane solution of $\beta$-naphthol.
  • B
    acidic solution of $\beta$-naphthol.
  • C
    neutral solution of $\beta$-naphthol.
  • ✓
    alkaline solution of $\beta$-naphthol.
✓

Answer

Correct option: D.
alkaline solution of $\beta$-naphthol.
d
In dye test, phenolic $- OH$ is converted to $- O ^{\ominus}$, which activates the ring towards $EAS$. This is possible only in alkaline solution. Hence $(D)$.

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