📝 Multiple Choice Question
General-science
What is the name of the solution that is employed to identify the existence of starch in food?
A
Ammonium chloride
B
Chlorine solution
C
Iodine solution
D
Copper sulphate solution
Explanation
Iodine solution (I2 dissolved in aqueous potassium iodide) historically serves as a classic, reliable chemical test for the presence of starch. When it encounters the amylose helix structure within starch, it slips inside to form a striking blue-black inclusion complex.
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