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NTA Abhyas NEET2020ChemistryBiomoleculesPractice

Which of the following amino acids do not give purple colour on reaction with ninhydrin?

Options

  1. Aproline
  2. Balanine
  3. Cglycine
  4. Dboth A and B

Correct answer

A. proline

Step-by-step solution

Except proline and hydroxyproline (yellow colour), all α -amino acids give purple colour with ninhydrin.

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