A potato tuber has been cut into two halves. A few drops of iodine solution are placed on the cut surface of one of the halves. What colour change will be noticed?
A. From brown to blue-black
B. From brown to orange-red
C. From blue to pink
D. From pink to blue-green
Answer: Option A
Solution (By Examveda Team)
The Iodine test is used to test for the presence of starch. Iodine solution — iodine dissolved in an aqueous solution of potassium iodide — reacts with the starch producing a purple black colour.This Question Belongs to General Knowledge >> Chemistry
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