Consider the following statements about amino acids:

Options

A. the amino acids that constitute proteins are all L-amino acids.
B. among the 20 amino acids that constitute proteins, glycine is the only one that does not possess chiral center.
C. an important and sensitive test for the detection of L-amino acid is the ninhydrin colour test.
D. `HNO_(2)` liberates nitrous oxide from amino acid

Answer

A, B, C