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In the following reaction ' C ' is an aromatic compound having substituents D & E . What are D & E ?

Options

  1. A- OH ,- SO ₃ H
  2. B- CHO ,- NO ₂
  3. C- COOH ,- NO ₂
  4. D- SO ₃ H ,- NO ₂

Correct answer

C. - COOH ,- NO ₂

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