lodine solution is used in milk testing to find the adulteration of
Show answer & explanation
Correct answer: D
Explanation
The correct answer is Option 4 i.e. Starch.
The iodine test works on the principle that starch, a polysaccharide, reacts with iodine to produce a distinct blue-black or purple color. Pure milk does not naturally contain starch. If starch is added to milk (often to increase its volume or thickness, making diluted milk appear richer), adding a few drops of iodine solution will cause the characteristic color change, indicating adulteration. This is a simple and common method used for basic milk quality checks.