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Question

Iodine test is shown by :

A
glucose
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B
starch
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C
glycogen
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D
polypeptide
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Solution

The correct option is B starch
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.

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