What is the action of acidified potassiumdichromate onpotassium iodide – InterviewSolution

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1.	What is the action of acidified potassiumdichromate onpotassium iodide (KI)?
Answer» Solution :Acidifiedpotassium dichromate, `K_(2)Cr_(2)O_(7)` oxidises POTASSIUM IODIDE (KI) to iodine, increasing the oxidation state of iodine from -1 to ZERO. `K_(2)Cr_(2)O_(7(aq)) +6KI_((aq)) +7H_(2)SO_(4(aq)) to 4K_(2)SO_(4)+Cr(SO_(4))_(3)+7H_(2)O+3I_(2)`

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