Geo-Scientist Prelims 2020 Chemistry Q90: Which one of the following amino acids is achiral?

QuestionBiomolecules / amino acids

Which one of the following amino acids is achiral?

Answer: (b) Glycine

Glycine H₂N–CH₂–COOH: the α-carbon carries two H → not a stereocentre → achiral. All other standard amino acids are chiral → (b).

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