JEE Main levelSingle correct optionDifficulty 2 of 3bm067
Assertion (A): Amino acids are amphoteric in nature. Reason (R): An amino acid contains both an acidic carboxyl group and a basic amino group.
ABoth A and R are true and R is the correct explanation of A
BBoth A and R are true but R is not the correct explanation of A
CA is true but R is false
DA is false but R is true
Answer: A
Amino acids react with both acids (through the basic −NHX2 or −COO− group) and bases (through −COOH or −NHX3X+), so both statements are true. R directly explains A.