Which of the following orders is true regarding the acetic nature of monosubstituted acetic acid?

Which of the following orders is true regarding the acetic nature of monosubstituted acetic acid?
  1. Fluoroacetic acid $>$ Chloroacetic acid $>$ Bromoacetic acid
  2. Fluoroacetic acid $ < $ Chloroacetic acid $ < $ Bromoacetic acid
  3. Fluoroacetic acid $ < $ Chloroacetic acid $>$ Bromoacetic acid
  4. Fluoroacetic acid $ < $ Chloroacetic acid $ < $ Bromoacetic acid

Solution

The larger the electronegativity of halogen, the larger the acidity of substituted acetic acid. ^

Asked in: JEE-TOPICTESTS-CHEMISTRY

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