Question

what reagent is used to test for polysaccharides like starch?
benedicts
biuret
sudan iv
iodine - lugols

Explanation:

Benedict's reagent tests for reducing sugars, Biuret for proteins, Sudan IV for lipids. Iodine - Lugol's reagent reacts with polysaccharides like starch to produce a blue - black color.

Answer:

D. iodine - Lugols