The item that will have a chemical reaction with iodine is cornstarch. When iodine is mixed with cornstarch, it forms a blue-black complex due to the presence of amylose in starch. The other items listed (powdered sugar, baking soda, and salt) do not produce a color change with iodine.
A chemistry class is experimenting with iodine to see which common white powder items will react and make the iodine change color. Which item listed will have a chemical reaction with iodine?(1 point)
Responses
powdered sugar
powdered sugar
baking soda
baking soda
salt
salt
cornstarch
cornstarch
1 answer
1 answer