Is oxalic acid a monoprotic acid? Explain.

• A. Oxalic acid is a monoprotic acid because it has no hydrogen atoms.
• B. Oxalic acid is a monoprotic acid because it has one ionizable hydrogen atoms.
• C. Oxalic acid is not a monoprotic acid because it has two ionizable hydrogen atoms.
• D. Oxalic acid is not a monoprotic acid because it has three ionizable hydrogen atoms.
• E. None of the above

Answer: (C)