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NEET2001ChemistryCarboxylic Acid DerivativesActual

Strongest acid among the following is

Options

  1. Aacetic acid
  2. BFCH ₂ COOH
  3. CF ₂ CHCOOH
  4. DF ₃ CCOOH

Correct answer

D. F ₃ CCOOH

Step-by-step solution

Fluorine is a highly electronegative element, it withdraws electron from the neighbouring atoms. Therefore, more is the number of fluorine atoms attached, greater will be the acidity of the molecules. e.g. FCH ₂ COOH is more acidic than CH ₃ COOH . Therefore, correct order of acidity is : CF ₃ COOH > CF ₂ HCOOH > FCH ₂ COOH > CH ₃ COOH

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