The acidic character of amino acids is due to? A. Amino group B. Carbonyl group C. Carboxylate D. Carbonyl oxygen Right Answer: C. Carboxylate Share : December 16, 2017 Hassan Ali Chemistry Total 0 Votes: 0 0 Tell us how can we improve this Mcqs? Captcha: + = Verify Human or Spambot ? Related Mcqs Check Below -Which of the following species has lone pair of electrons on central atom?For producing a carboxylic acid derivative. The addition of nucleophile to carboxyl group is always followed by displacement of?Lack of essential amino acids in diet leads to the disease.