Q. Which color is produced by the action of Iodine with starch?

A
Red
B
Blue
C
Yellow
D
Green
Solution:

Using iodine to test for the presence of starch is a common experiment. A solution of iodine (I2) and potassium iodide (KI) in water has a light orange-brown color. If it is added to a sample that contains starch, such as the bread pictured above, the color changes to a deep blue.

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