Question

multiple choice 2 points which of the following compounds has the highest level of acidity?

Explanation:

Step1: Understand electron - withdrawing effect

Electron - withdrawing groups increase acidity of carboxylic acids.

Step2: Compare electronegativity of groups

Fluorine is more electronegative than chlorine and bromine.

Step3: Analyze number of electron - withdrawing groups

The second compound has two highly electronegative fluorine atoms close to the carboxyl group, which most effectively stabilizes the carboxylate anion formed after de - protonation, thus increasing its acidity more than the other compounds.

Answer:

The compound with two fluorine atoms (the second - option) has the highest acidity.