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Q: Primary test for amino acids
  • A. Barfoed's test
  • B. Mayer's test
  • C. Ninhydrin test
  • D. Bontrager's test
Correct Answer: Option C - The Ninhydrin test is a chemical test which is used to check whether a given analyte contains amines or a - amino acids . In this test, ninhydrin (a chemical compound with the formula C9H6O4 IUPAC name 2,2 - dihydroxyindane-1,3,dione) is added to a test solution of the analyte. The development of a deep blue colour indicates the presence of ammonia primary and secondary amines, or amino acids in the analyte.
C. The Ninhydrin test is a chemical test which is used to check whether a given analyte contains amines or a - amino acids . In this test, ninhydrin (a chemical compound with the formula C9H6O4 IUPAC name 2,2 - dihydroxyindane-1,3,dione) is added to a test solution of the analyte. The development of a deep blue colour indicates the presence of ammonia primary and secondary amines, or amino acids in the analyte.

Explanations:

The Ninhydrin test is a chemical test which is used to check whether a given analyte contains amines or a - amino acids . In this test, ninhydrin (a chemical compound with the formula C9H6O4 IUPAC name 2,2 - dihydroxyindane-1,3,dione) is added to a test solution of the analyte. The development of a deep blue colour indicates the presence of ammonia primary and secondary amines, or amino acids in the analyte.