220k views
1 vote
Describe how iodine can tell you if there is starch in a substance?

1 Answer

2 votes
Iodine reacts to amylose. Amylose is a polychloride found in starches when combined with iodine the substance then becomes blue. This is because the iodine is becoming iodide.

Hope this helps!
User Adyusuf
by
6.5k points