Topic: Iodine and Starch Experiment
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Answers to Common Questions
Why does Iodine React With Starch?
Iodine tends to react with starches an not with sugars because starches are generally linear molecules that are typically made up of hundreds of glucose molecules. These molecules are covalently bonded with one another. The iodine reacts we... Read More »
Source: http://answers.ask.com/Science/Chemistry/why_does_iodine_react_wi...
How does Iodine React With Starch?
Starches are long chains of the simple sugar glucose. These chains form hollow tubes. Iodine molecules are just the right size to fit inside these tubes. When they due they make the characteristic blue/black coloration. Read More »
Source: http://answers.ask.com/Science/Chemistry/how_does_iodine_react_wi...
Why does Iodine Turn Starch Blue?
Iodine turns starch blue because starch is made of two different types of chemicals. When the iodine hits the chemical it changes the electrons to blue. Read More »
Source: http://answers.ask.com/Science/Other/why_does_iodine_turn_starch_...
More Common Questions
Answers to Other Common Questions
A complex interconnected series of sugar molecules (saccharides) comprise starch molecules. To test for the presence of these polysaccharides (many sugar) structured starches you will need iodine. Often used as a science experiment, the iod...
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Source: http://www.ehow.com/how_5682963_test-yogurt-starch-iodine.html
Starch turns blue when Iodine is introduced. Added: Though it's not quite a chemical reaction, Iodine will give starch a bluish purple color but it stays chemically UNchanged. Iodine stays reddish brown with glucose and many other oligosacc...
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Source: http://wiki.answers.com/Q/Which_reacts_to_iodine_glucose_or_starc...
On a molecular level, iodine does not affect starch, but there is a colour change, from yellow to blue-black.
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Source: http://wiki.answers.com/Q/How_does_iodine_affect_starch
Starch is composed of polymers of glucose. Long linear chains are called amylose. Amylopectin is similar but contains a branch point about every 25th glucose or so. Amylose coils into a helical secondary structure resembling a tube with a h...
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Source: http://wiki.answers.com/Q/What+does+Iodine+do+with+starch
Iodine moves into starch and turns the starch from its white color to the iodine's brownish color.
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Source: http://wiki.answers.com/Q/How+is+iodine+an+indicator+of+starch
It turns it orange.
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Source: http://wiki.answers.com/Q/What_is_the_action_off_iodine_on_starch
Starch-Iodine Test - A test for the presence of starch in which the sample turns blue-black in color when a few drops of MORE
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Source: http://www.chacha.com/question/what-is-a-starch-iodine-test
