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What color is the starch-iodine complex?

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in Biology – Class 11 by (272k points)
What color is the starch-iodine complex?

(a) Yellow

(b) Brick red

(c) Blue

(d) Black

The question was posed to me in class test.

My question is taken from Biomolecules in chapter Biomolecules of Biology – Class 11

1 Answer

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Best answer
Correct option is (c) Blue

Explanation: The starch-iodine complex has a characteristic blue color. This presence of color serves as a test for the detection of starch in a sample. On addition of iodine solution, if the sample turns blue then the presence of starch is confirmed.

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