Which of the following orders of relative strengths of acids is correct?

Which of the following orders of relative strengths of acids is correct?
  1. $\mathrm{FCH}_{2} \mathrm{COOH}>\mathrm{ClCH}_{2} \mathrm{COOH}>\mathrm{BrCH}_{2} \mathrm{COOH}$
  2. $\mathrm{ClCH}_{2} \mathrm{COOH}>\mathrm{BrCH}_{2} \mathrm{COOH}>\mathrm{FCH}_{2} \mathrm{COOH}$
  3. $\mathrm{BrCH}_{2} \mathrm{COOH}>\mathrm{ClCH}_{2} \mathrm{COOH}>\mathrm{FCH}_{2} \mathrm{COOH}$
  4. $\mathrm{ClCH}_{2} \mathrm{CO}_{2} \mathrm{H}>\mathrm{FCH}_{2} \mathrm{COOH}>\mathrm{BrCH}_{2} \mathrm{COOH}$

Asked in: JEE-TOPICTESTS-CHEMISTRY

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