A. Methanoic acid
B. Ethanoic acid
C. Propanoic acid
D. Butanoic acid
Answer: Ethanoic acid
A. Methanoic acid
B. Ethanoic acid
C. Propanoic acid
D. Butanoic acid
Answer: Ethanoic acid
Additional Information: Acetic acid is the common name for ethanoic acid, with the formula CH3COOH.