Vinay wants to test a food item for the presence of starch in it. Which among the following should he choose?

Blue ink

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Copper Sulphate

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Iodine solution

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Litmus solution

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Solution

The correct option is C Iodine solution
The presence of starch in a food can be tested by adding iodine solution to it. If it turns blue-black, it contains starch.

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