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the simple answer is itshouldn't be the iodine produced should give rise to a light purple to begin with provide it is dissolve in water, if in an inorganic solvent it may well be dependant on the solvent.

however my guess is the potassium iodine is dissolved in water and than has become contaminated with something like lead giving rise to lead iodide (yellow solid that participates out if memory serves this being the case you will have a gas given off at the negative electrode (anode) this will be hydrogen and a mix of purple and yellow solid at the positive electrode (cathode)

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Q: Why is the iodine produced in the electrolysis of KI yellow?
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Related questions

How many grams of iodine are produced when 0.72 mol of fluorine reacts with potassium iodide KI 2 KI F2 -- 2 KF I2?

182.88


What is the Chemical formulas for potassium iodine?

The chemical formula for potassium iodine is KI


What is the correct formula for potassium and Iodine?

Literally, the correct formula for potassium and iodine at standard temperature and pressure would be " K and I2". The formula for the compound formed between potassium and iodine, however, is KI.


What are 2 substances that contain the element iodine?

Iodine is in: Iodomethane (CH3I) that is produced by the marine environment, by microbial activity in rice paddies and in Potassium iodide (KI) a very soluble salt.


Formula potassium iodine?

KI


How KI formulated for iodine dissolution?

See: http://www.elmhurst.edu/~chm/vchembook/548starchiodine.html For demonstrating starch the concentrations are not essential. Dissolve so much I2 in a KI solution until you get a yellow-brownish colour.


What is the molecular formala of Potassium iodine?

KI


What is the substance for the formula KI?

potassium and iodine


Why is KI used in estimation of iodine in tincture iodine?

this is because iodine is not soluble in water and it is soluble in potassiuim iodide. so KI is used as a solvent, and the resulting potassium iodate is soluble in watre so we can determine iodine in the ticture.


What element turns blue when in presence of starch?

Iodine potassium iodide (I2KI)


What is the role of potassium iodide in the formulation of strong iodine solution?

The role of KI in the preparation of strong iodine solution is to enhance the solubility of iodine crystals in water. Iodine is generally not soluble in water. The KI is added to help the iodine to be dissolved. -College Chemistry professor


How do you prepare 0.1M IODINE?

2grm iodine and 4grm KI add to 1000ml of water