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8.1. Aldehydes and ketones — Chemistry STD 12 Science — Question

CBSE BoardEnglish MediumSTD 12 ScienceChemistry8.1. Aldehydes and ketones1 Mark
MCQ
The following reaction : is known as
  • A
    Perkin reaction
  • ✓
    Gattermann reaction
  • C
    Kolbe reaction
  • D
    Gattermann-Koch reaction
✓

Answer

Correct option: B.
Gattermann reaction
b
The given reaction is known as Gattermann reaction.

In this reaction, aromatic compound such as benzene or phenol is treated with a mixture of $HCN$ and dry $HCl$ gas under pressure and in the presence of anhydrous aluminum chloride or zinc chloride to introduce a formyl group in the aromatic nucleus.

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