Which of the following molecules is amphoteri | vedclass

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(A) An amphoteric molecule is one that can act as both an acid and a base. Amino acids,such as $Glycine$,contain both an amino group ($-NH_2$,which is

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Glycine

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(A) An amphoteric molecule is one that can act as both an acid and a base. Amino acids,such as $Glycine$,contain both an amino group ($-NH_2$,which is basic) and a carboxyl group ($-COOH$,which is acidic). In an aqueous solution,$Glycine$ exists as a zwitterion,where the carboxyl group loses a proton $(COO^-)$ and the amino group gains a proton $(NH_3^+)$. Because of this dual nature,$Glycine$ is amphoteric. $Glucose$,$Fructose$,and $Starch$ are carbohydrates and do not possess both acidic and basic functional groups in this manner.

Which of the following molecules is amphoteric in nature?

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