Biuret test is not given by(a) carbohydrates (b) polypeptides(c) urea (d) proteins
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The Biuret Reagent is made of sodium hydroxide and copper sulfate. The blue reagent turns violet in the presence of proteins, and changes to pink when combined with short-chain polypeptides.
Carbohydrates does not contain CO−NH group so it doesn’t give biuret
Ans : (B)
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