Which of the following carbohydrates develop blue color on treatment with iodine solution?

Glucose

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Amylose

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Starch

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Fructose

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Solution

The correct options are
B Amylose
C Starch
Amylose gives a blue colour with iodine solution due to the formation of an inclusion complex.
Amylose is a part of Starch only, hence, starch also gives the blue color with iodine solution.

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