The structure of phenylalanine, one of the 20 amino acids that make up proteins, is drawn below (without lone pairs of electrons). The carbon atoms are numbered for the purpose of this question.
(a) What is the geometry of C3?
(b) What is the O—C—O bond angle?
(c) Is this molecule chiral? If so, which carbon atom is chiral?
(d) Which hydrogen atom in this compound is acidic?
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