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NEET levelSingle correct optionDifficulty 1 of 3bm187

On heating with ninhydrin, a typical alpha-amino acid gives a

  1. Abrick-red precipitate
  2. Byellow precipitate
  3. Cblue-violet colour
  4. Dgreen colour

Answer: C

Ninhydrin reacts with the free alpha-amino group to give the blue-violet Ruhemann's purple, the standard test for alpha-amino acids.
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