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How do you test for presence of Barium and Iodine in aqueous solution?
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What is the name of starch indicators solution?
It is the Iodine dissolved in aqueous Potassium(or Sodium) Iodide
What stain is used to test for plant starch in cells?
aqueous iodine in the form of potassium iodide turns purple in the presence of starches in water.
How can you tell by using iodine if a sugar is a monosaccharide disaccharide or polysaccharide?
Adding iodine to the solution will turn it a deep blue which indicate presence of polysaccharides.
Why Iodine is almost insoluble in water but it dissolves easily in aqueous solution of KI?
Iodine (I2) reacts with iodide (I-) to form triiodide ion (I3-). Although I2 is insoluble in water, I3-is very soluble, so adding KI will pull I2into solution is I3-.
Why does glycogen change to red when iodine solution is added?
Iodine tests for complex sugars. Glycogen is a complex sugar and will change dark purple when iodine solution is added (color is irrelevant, all you really need to know is that the change to a specific color signifies a presence of a macro molecule)
What is the procedure for the preparation of aqueous iodine solution?
side effect of iodine
What indicator substance is used to test a leaf for starch?
Iodine Solution is used to determine whether starch is present.
Why does an aqueous solution of iodine not react with potassium chloride?
because it dosent
Why isn't starch present when colour is light brown?
The Iodine test uses Iodine solution, which is usually a brown colour. It is used to test for the presence of Starch. Iodine solution, iodine dissolved in an aqueous solution of potassium iodide, reacts with starch producing a blue black color. If the sample being tested doesn't turn blue-black, then starch isn't present.
What is the chemical used to test for the presence of starch?
The chemical used to test for the presence of starch is iodine.
Why does a aqueous solution of iodine not react with sodium bromide?
Bromine is more reactive than iodine/bromine is higher in the activity series than iodine
What is the name of starch indicators solution?
It is the Iodine dissolved in aqueous Potassium(or Sodium) Iodide
What happens when you evaporate an aqueous iodine solution?
It will leave a solid salt, consisting of the ions.
What stain is used to test for plant starch in cells?
aqueous iodine in the form of potassium iodide turns purple in the presence of starches in water.
What is used to test the presence of starch?
alcohol , iodine solution
Why do we rinse the leaf I water?
The leaf was rinsed in water to rehydrate it. Iodine solution is an aqueous solution of iodine/potassium iodine - potassium tri-iodide; water is needed inside the leaf to enable penetration by diffusion.
If chlorine gas is bubbled through an aqueous solution of sodium iodide the result is elemental iodine and aqueous sodium chloride solution what kind of reaction took place?
Single-replacement
