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JEE Main Chemistry question

ChemistryOrganic Chemistry - Some Basic Principles and TechniquesJEE Main

[K CET 2007] The amino acid which is not optically active is

Answer: (D)

Solution

Optical activity in an amino acid requires a chiral α-carbon bonded to four different groups; glycine's side chain is simply a hydrogen atom, so its α-carbon bears two identical substituents (two H atoms)

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Question ID VK-150660