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MHT CET202014 Oct 2020Morning ShiftChemistryHaloalkanes and HaloarenesActual

Which among the following is true for Balz-Schiemann reaction?

Options

  1. AIn this Ar - Cl is obtained from Ar - N ₂⁺ X ⁻
  2. BIt is useful for preparation of nitrobenzene from benzene diazonium salts
  3. CIn this Ar - CN is obtained from Ar - N ₂⁺ X ⁻
  4. DIn this Ar - F is obtained from Ar - N ₂⁺ X ⁻

Correct answer

D. In this Ar - F is obtained from Ar - N ₂⁺ X ⁻

Step-by-step solution

Balz-Schiemann Reaction: When arene-diazonium chloride is prepared with fluoroboric acid, arene diazonium fluoroborate is precipitated and decomposes to yield aryl fluoride which on heating.

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