Question

Why are carboxylic acids more acidic than alcohols or alkynes? (choose all that apply)

Answer 1

Answer:

The answers are (A.) Carboxylate ions have resonance, while alkoxides and acetylides don't (D.) Both carboxylic acids and carboxylates have resonance stabilization

Explanation:

When alcohols or alkynes donate a proton (H+), they become alkoxides acetylides respectively. Carboxylic acids on the other hand form carboxylate ions.

Carboxylate ions are more stable than their alkoxide and acetylides counterparts, because they possess a resonance structure which disperses its negative charge and allows for the valence electrons to be effectively delocalized.

Hence, carboxylic are more acidic than alcohols or alkynes.