Which chemical is used to detect the presence of starch in a food product?

HCl acid

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Iodine solution

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Copper sulphate solution

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None of the above

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Solution

The correct option is B Iodine solution
Starch is the most common carbohydrate present in the diet of human being. Iodine is used to detect the presence of starch in food. If starch is present in a food product, it turns blue-black colour when iodine solution is added.
So, the correct answer is 'Iodine solution'.

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