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NEET2013ChemistryHaloalkanes and HaloarenesActual

Some meta-directing substituents in aromatic substitution are given. Which one is most deactivating?

Options

  1. A- C N
  2. B- SO ₃ H
  3. C- COOH
  4. D- NO ₂

Correct answer

D. - NO ₂

Step-by-step solution

The deactivating tendency of given groups follows the order Thus, - NO ₂ is the most deactivating group.

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