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14 August, 08:31

What is iodine solution changing from amber-yellow to blue-black an indication of?

a. the presence of reducing sugars or monosaccharides

b. the presence of proteins or peptide bonds

c. the presence of lipids or fats

d. the presence of starches or complex carbohydrates submit for grading save and finish later?

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  1. 14 August, 08:59
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    The answer is D. Iodine is used to test for starches and, in the presence of a starch, it will turn a dark blue-black color.
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