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NEETChemistryAlcohols Phenols and Ethers

What do you mean by Kolbe’s reaction?

Options

  1. AKolbe's reaction is a method for the preparation of carboxylic acids from alcohols.
  2. BKolbe's reaction involves the conversion of alkenes into alkanes by hydrogenation.
  3. CKolbe's reaction is a process for the synthesis of alkyl halides from alkanes.
  4. DWhen phenol is treated with sodium hydroxide, sodium phenoxide is produced. This sodium phenoxide when treated

Correct answer

D. When phenol is treated with sodium hydroxide, sodium phenoxide is produced. This sodium phenoxide when treated

Step-by-step solution

Correct Option is : (D) When phenol is treated with sodium hydroxide, sodium phenoxide is produced. This sodium phenoxide when treated with carbon dioxide, followed by acidification, undergoes electrophilic substitution to give ortho-hydroxybenzoic acid as the main product. This reaction is known as Kolbe’s reaction.

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