Question

protein test: identify the correct reagent
which reagent is used to detect the presence of protein?
multiple choice
iodine
benedicts
sudan iv
biuret

Explanation:

Iodine is used to test for starch. Benedict's reagent is for reducing sugars. Sudan IV is for detecting lipids. Biuret reagent reacts with peptide bonds in proteins to give a color - change, indicating the presence of protein.

Answer:

D. biuret