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Amino acids can show amphoteric behaviour.(a) True(b) FalseThe question was posed to me during an interview for a job.Enquiry is from Biomolecules in chapter Biomolecules of Chemistry – Class 12

Answer»

The correct option is (a) True

For explanation I would SAY: In an aqueous solution of AMINO acid, COOH loses a proton and NH2 accepts a proton, giving rise to a dipolar zwitter ion. This is neutral but contains both POSITIVE and negative terminals. In this FORM, amino acids react both with acids and bases, and HENCE show amphoteric behaviour.



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