Multiple choice general knowledge science & technology

Biuret test is performed to find the presence of which constituent in food.

  1. Carbohydates

  2. Fat

  3. Protein

  4. Lipids
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The Biuret test detects peptide bonds in proteins. When copper(II) sulfate reacts with peptide bonds under alkaline conditions, the solution turns violet/purple. Carbohydrates use tests like Benedict's, fats use ethanol emulsion test, and lipids are tested with Sudan III.

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