Question

38. Which functional group of the protein is identified by Biuret test?


A. the carboxyl group
C. the peptide bond
B. the amino group
D. number of hydrogen atoms
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Answer 1

Answer:

C.

Explanation:

The biuret test for proteins positively identifies the presence of proteins in solution with a deep violet colour. Biuret, H2NCONHCONH2, reacts with copper (II) ions in a basic solution to form a deep violet complex.

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Answer 2

'c' is the answer .

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