JEE Main 2021 — Biomolecules Question with Solution
JEE Main 2021 (27 Aug Shift 2)
Question
Which one of the following tests used for the identification of functional groups in organic compounds does not use copper reagent?
Choose an option
Show full solutionCorrect option: A
Correct answer
ASeliwanoff's test
Step-by-step explanation
Seliwanoff's Test : This test is used to detect the presence of Ketohexose.
Reagent : Resorcinol conc. .
Barfoed's Test : It is used to detect Monosaccharide by reduction of into Copper (I). Fehling Solution: It is used to detect aldehyde by reduction into . Biuret Test : Use to detect presence of peptide bond in protein by reduction of into .
Reagent : Resorcinol conc. .
Barfoed's Test : It is used to detect Monosaccharide by reduction of into Copper (I). Fehling Solution: It is used to detect aldehyde by reduction into . Biuret Test : Use to detect presence of peptide bond in protein by reduction of into .
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This is a previous-year question from JEE Main 2021, covering the Biomolecules chapter of Chemistry. PrepSharp catalogues every PYQ from JEE Main with a verified answer key and step-by-step solution prepared by IIT alumni — so you can search by chapter, topic or year and revise efficiently.