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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-.

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Does aqueous contain iodine or benzoin?

Aqueous solution typically refers to a solution where a substance is dissolved in water. Iodine can be dissolved in water to form an aqueous solution, known as iodine solution. Benzoin, on the other hand, is not typically soluble in water, so it is less common to find it in an aqueous solution.


What is the pH of iodine?

Iodine does not have a pH since it is not an aqueous solution. pH is a measure of the concentration of hydrogen ions in a solution.


What are the two method that can be use to separate a mixture of iodine crystal and iron fillings?

Since lead iodide is insoluble in an aqueous solution, you could filter it out using a funnel and filter paper.


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?

Iodine is not reactive with potassium chloride in an aqueous solution because iodine is less reactive than chlorine. Chlorine is more likely to react with potassium to form potassium chloride, leaving the iodine unreacted.


What happens when you evaporate an aqueous iodine solution?

When you evaporate an aqueous iodine solution, the water will gradually evaporate and the iodine will be left behind as solid crystals. Iodine is not soluble in water, so it will separate out as it becomes less diluted with the evaporation of water.


When lead nitrate solution is added to sodium iodine solution solid lead iodide is formed word equation?

Aqueous lead nitrate plus aqueous sodium iodide produce solid lead iodide and aqueous sodium nitrate.


What does lugol's iodine?

it is iodine and potassium iodide solution It's a orange colored solution that consists of Iodine and Potassium Iodide and is used to test a substance for starch. If the color of the solution turns black when put on/in the substance, then the substance is positive for starch.


What is the procedure for the preparation of aqueous iodine solution?

To prepare an aqueous iodine solution, first dissolve iodine crystals in water until the desired concentration is reached. Iodine is sparingly soluble in water, so it may take some time and stirring for complete dissolution. Always handle iodine with care and ensure proper ventilation when working with it.


What happens when chlorine gas is added to potassium iodide solution?

When chlorine gas is bubbled into an aqueous solution of potassium iodide, some of the iodide ions are oxidized to iodine. The iodine molecules combine with iodide ions to form brown triiodide ion, I3-. In this demonstration, the aqueous solution is above a layer of carbon tetrachloride, in which iodine is quite soluble. The beautiful violet color of iodine can be seen as the iodine dissolves in the carbon tetrachloride layer. With excess chlorine, iodine reacts to form iodine monochloride, ICl, which is ruby red. The iodine monochloride reacts further to form iodine trichloride, ICl3, which is much lighter in color, causing the solution to be decolorized.


Colours of solutions when iodine dissolves in it?

Iodine typically imparts a dark purple or brown color when it dissolves in solutions such as water or alcohol. The intensity of the color may vary depending on the concentration of iodine in the solution.


What is the name of starch indicators solution?

It is the Iodine dissolved in aqueous Potassium(or Sodium) Iodide