From the following molecules, pick out the strongest acid:

Question

Quizplus · Accepted Answer

The strength of an acid is determined by its ability to donate a proton (H+ ion). In molecule C, the hydrogen attached to the oxygen has a negative charge, making it a highly acidic hydrogen that can easily donate a proton. In comparison, the hydrogens in molecules A, B, and D are not as acidic, as they are not adjacent to any highly electronegative atoms that can stabilize the negative charge that forms when the hydrogen loses its proton. Therefore, molecule C has the strongest acid.

From the Following Molecules, Pick Out the Strongest Acid