The production of violet colouration, when dilute NaOH solution is added to a solution of food substance, followed by drops of 1% CuSO4 solution while shaking, indicates the presence of
-
protein
- carbohydrates
- fats
- reducing
The correct answer is: A
Explanation
This is the Biuret's test which is a chemical test that detects the presence of peptide bonds in a substance, and is used to measure the amount of protein in a sample. - Option A
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