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What substance is present if iodine soluntion turns blue-black?
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If iodine solution turns blue-black what substance is present?
Starch.
Will cooked rice turned dark blue with iodine solution?
Yes -cooked rice has starch present which is a natural indicator for Iodine
Is iodine and water homogeneous or heterogeneous?
They are homogeneous. But they are not a mixture, so they are a pure substance
What is an element that is present in thyroxine?
Iodine
What substance turns dichloromethane to a violet color?
Iodine
Why did each of the solutions turn iodine blueblack at the start of the experiments?
Iodine is famous for testing of the presence of starch. I would assume starch is present in the solution, therefore iodine would turn blue. Originally, the colour of iodine solution is brown.
What happens when iodine solution turns blue-black what substance is present?
Starch is present. Check a potato with iodine.
If iodine solution turns blue-black what substance is present?
Starch.
When iodine solution turns blue-black what substance is present?
Starch
When iodine solution turns blue black what substance is present?
Starch
What indicator substance is used to test a leaf for starch?
Iodine Solution is used to determine whether starch is present.
What makes iodine turn purple?
when iodine is added to a substance it turns dark blue when starch is present, and remains brown when starch is not present. This is basically because iodine forms a polypeptide complex with starch, resulting in the dark blue solution.
What is the function of iodine?
Iodine solution is commonly used to test for starch. If starch is present in a substance (e.g. a leaf which undergone photosynthesis) then the iodien solution would turn blue black. If no starch is present then it remains as light brown.
Is iodine is a pure substance?
Solid iodine can be found as pure crystals.
Will cooked rice turned dark blue with iodine solution?
Yes -cooked rice has starch present which is a natural indicator for Iodine
Is iodine a element or pure substance?
Yes, iodine is an element. It is in the periodic table.
What is iodine used as an indicator for?
Iodine is used as an indicator for starch. When a substance has iodine added to it, then it will turn into a dark blue color. This is a sign that the substance indeed has starch in it.
