Multiple choice

Which of the following is a test for proteins?

  1. Biuret test

  2. Beilstein test

  3. Benedict's test

  4. Molisch’s test
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A Correct answer
Explanation

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.

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