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CHEMISTRY
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When chlorine gas was bubbled into an aqueous potassium iodide solution ,the colour of the solution changed from colourless to brown .explain why?

Chlorine is higher on the reactivity scale than iodine. This means it is able to displace iodine, which is what has happened: Chlorine + Potassium iodide —> potassium chloride + iodine Iodine in solution is brown coloured

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