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BITSAT2016ChemistryHydrocarbonsActual

Which of the following method gives better yield of p -nitrophenol?

Options

  1. APhenol dil.HNO ₃ 20^ C p -Nitrophenol
  2. BPhenol (i) NaNO ₂+ H ₂ SO ₄, 7-8^ C (ii) HNO ₃ p -Nitrophenol
  3. CPhenol (i) NaOH (ii) Conc. HNO ₃ ,
  4. DNone of the three.

Correct answer

B. Phenol (i) NaNO ₂+ H ₂ SO ₄, 7-8^ C (ii) HNO ₃ p -Nitrophenol

Step-by-step solution

Thus here, oxidation of phenol is minimised by forming p -nitrosophenol.

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