In a highly basic solution, pH = 13, the dominant form of glycine is:
A) NH2—CH2—COOH.
B) NH2—CH2—COO?.
C) NH2—CH3+—COO?.
D) NH3+—CH2—COOH.
E) NH3+—CH2—COO?.
Ans: C) NH2—CH3+—COO?.
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