Question

Why is potassium aiodide kept in coloured bottles?

Answer 1

hey mate

chemicals such as potassium iodide and silver nitrate is stored in coloured bottles because they decompose in the presence of light.

Answer 2

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Idione solution react with light to undergo a photo decomposition reaction and therefore must be stored in amber/dark bottle to minimize the amount of light that the solution is exposed to. If stored in transparent bottle it will gradually break down as the idione ion , are gradually converted to idione and the solution turns a yellowish colour.


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