Hypothesis: if iodine is placed on sourdough bread then it will have an instant color change from __ to indicating that _ is the major organic molecule in bread.

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06-09-2022
Biology

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Hypothesis: if iodine is placed on sourdough bread then it will have an instant color change from __ to indicating that _ is the major organic molecule in bread.

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bharathparasad577 bharathparasad577 · Answer 1 · 2022-09-10T21:31:43-04:00

To check for starch in food, iodine solution is employed. A bright orange-brown hue can be seen in a solution of potassium iodide (KI) and iodine (I2) in water. if starch-containing samples, such as bread, are included in the sample.

The bread's colour transforms to a rich blue.
The starch and the iodine do exchange some electrical charges.
The spacings between energy levels are altered as a result, changing the electron configurations. The complex gets its vivid blue colour from the additional spacings, which preferentially absorb visible light.
Iodine is frequently used as an indication to check for starch. When starch reacts with the light orange-brown iodine solution, the colour changes to blue-black. This implies that the food item contains carbs.

Learn more about Starch here:

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