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Components of Food — Science STD 6 — Question

CBSE BoardEnglish MediumSTD 6ScienceComponents of Food3 Marks
Question
How will you test for protein in a food sample?
✓

Answer

Take a small quantity of food sample in a test tube, add $10$ drops of water to it and shake the test tube, after that add two drops of solution of copper sulphate and ten drops of caustic soda. A violet colour indicates presence of protein in the food sample.

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