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Question
What is the action of acidified potassium dichromate on - KI
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Solution 1
Action of acidified potassium dichromate on KI:
Potassium iodide is oxidized to iodine by acidified potassium dichromate. Colour of the solution changes to brown due to the liberated iodine

Structure of dichromate ion:

Solution 2
Action of acidified potassium dichromate on KI:
Potassium iodide is oxidized to iodine by acidified potassium dichromate. Colour of the solution changes to brown due to the liberated iodine

Structure of dichromate ion:

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