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MHT CET202016 Oct 2020Evening ShiftChemistryHaloalkanes and HaloarenesActual

Which of the following pairs of aryl halides can N O T be prepared directly by electrophilic substitution?

Options

  1. AAryl bromide and aryl iodide
  2. BAryl chloride and aryl bromide
  3. CAryl fluoride and aryl chloride
  4. DAryl iodide and aryl fluoride

Correct answer

D. Aryl iodide and aryl fluoride

Step-by-step solution

(D) Because aromatic electrophilic substitution with iodine is reversible and with fluorine is highly reactive.

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