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  3. Chemistry
  4. Which one of the following tests used for the identification of functional groups in organic compounds does not use copper reagent ?

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Q. Which one of the following tests used for the identification of functional groups in organic compounds does not use copper reagent ?

JEE MainJEE Main 2021Biomolecules

Solution:

In Seliwanoff's reagent, $Cu$ is not present.
In Barfoed, Biuret and in Benediet reagent $Cu$ is present.