When testing a food sample like potato juice, which option correctly explains the reason for the appearance of a blue-black colour upon addition of iodine solution?

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Biology · Nutrition

Verified Solution4 OptionsUpdated: October 2026👁️1 View

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Correct answer

Potato juice contains starch, which turns blue-black with iodine

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Answer 1

Potato juice contains proteins, which turn blue-black with iodine

Answer 2

Potato juice contains starch, which turns blue-black with iodine

Answer 3

Potato juice contains glucose, which turns blue-black with iodine

Answer 4

Potato juice contains fats, which turn blue-black with iodine

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