Which chemical test shows the presence of an enzyme in a biological washing powder?

a. benedict's
b. biuret
c. ethanol emulsion
d. iodine solution

option B. Biuret

Explanation:

The enzymes are proteins which are used in a biological washing powder. The Piotrowski's test, also called Biuret test is a chemical test. This test is used to perform the presence of peptide bond. The change in color shows the presence of protein.

The benedict's test is used to test presence of sugar. The Ethanol emulsion test is used to detect lipids. The Iodine solution is used to treat diseases.

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