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Describe the oxidizing action of potassium dichromate and write the ionic equations for its reaction with: i. iodide ii. iron (II) solution iii. H2S.

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asked Mar 19, 2018 in Chemistry by paayal (26,720 points) ● 4 ● 6 ● 11

Describe the oxidizing action of potassium dichromate and write the ionic equations for its reaction with: i. iodide ii. iron (II) solution iii. H2S. 

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answered Mar 19, 2018 by sanjaydas (61,430 points) ● 5 ● 7 ● 7
selected Mar 24, 2018 by Vikash Kumar
 
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Potassium dichromate, K2Cr2O7 is a strong oxidizing agent and is used as a primary standard in volumetric analysis involving oxidation of iodides, ferrous ions and S2- ions, etc.
i. It oxidizes potassium iodide to iodine.

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