Use the figures to answer the question.

Which molecule shown can increase the concentration of hydrogen ions in a solution and is therefore an organic acid?
A) A
B) B
C) C
D) D

Question

Use the figures to answer the question.

Which molecule shown can increase the concentration of hydrogen ions in a solution and is therefore an organic acid?
A) A 
B) B 
C) C 
D) D

Quizplus · Accepted Answer

Molecule C has a carboxyl group (-COOH), which can donate a hydrogen ion (H+) to a solution, increasing the concentration of hydrogen ions and making it an organic acid. Molecules A, B, and D do not have functional groups that can donate hydrogen ions.

Use the Figures to Answer the Question