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JEE Main Chemistry question

ChemistryBiomoleculesJEE Main

Which amino acid has more than one stereogenic centre?

Answer: (C)

Solution

Aspartic acid, lysine, arginine and histidine each have a single chiral centre at their α-carbon, with side chains (a carboxymethyl, a butylamino, a guanidinopropyl, and an imidazolylmethyl group respectively) that contain no additional stereocentre of their own. As printed, the source identifies arginine as the

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Question ID VK-150812