2. Explain for the disappearance of the color of iodine upon heating and its reappearance upon cooling?

Biochemistry
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Author:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.
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Chapter1: Biochemistry: An Evolving Science
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Please help me answer question number 2. Thank you
2. Explain for the disappearance of the color of iodine upon heating and its reappearance
upon cooling?
Transcribed Image Text:2. Explain for the disappearance of the color of iodine upon heating and its reappearance upon cooling?
Iodine Test – (use all 8 samples- SAMPLE: 5% of lactose, sucrose, glucose, galactose,
( 10 ml each) |place 1 ml of the sample in a
fructose, maltose, starch and xylose
test tube. Add a drop of iodine. Observed color produced. Heat (direct heating) and
note change in color. Cool and record again the result.
Transcribed Image Text:Iodine Test – (use all 8 samples- SAMPLE: 5% of lactose, sucrose, glucose, galactose, ( 10 ml each) |place 1 ml of the sample in a fructose, maltose, starch and xylose test tube. Add a drop of iodine. Observed color produced. Heat (direct heating) and note change in color. Cool and record again the result.
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