Question

Which among the following is the strongest acid?

Options

• Acetic acid

• Monochloroacetic acid

• Dichloroacetic acid

• Trichloroacetic acid

Answer 1

Trichloroacetic acid

Explanation:

CH₃COOH < ClCH₂COOH < Cl₂CHCOOH < Cl₃CCООН

Due to the greater −I effect of 3 Cl atoms, trichloroacetic acid is the strongest acid.