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What is the action of following on phenol at low temperature? dil. HNO3 conc. H2SO4 Br2/CS2 - Chemistry

Answer in Brief

What is the action of following on phenol at low temperature?

  1. dil. HNO3
  2. conc. H2SO4
  3. Br2/CS2
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Solution

  1. Dilute HNO3: Phenol reacts with dilute nitric acid at low temperature to give a mixture of ortho- and para-nitrophenol.
  2. Conc. H2SO4: At room temperature (298 K), phenol reacts with concentrated sulphuric acid to form o-phenolsulphonic acid.
  3. Br2 in CS2: When a reaction is carried out in a solvent of lower polarity like CS2 a mixture of ortho- and para-bromophenol is formed.
Concept: Alcohols and Phenols
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APPEARS IN

SCERT Maharashtra Question Bank 12th Standard HSC Chemistry Maharashtra State Board 2021
Chapter 11 Alcohols, Phenols and Ethers
Short Answer Questions (Type-II) | Q 1
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