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Potassium dichromate acts as a strong oxidizing agent in acidic solution. During this process, the oxidation state changes from

Question

Potassium dichromate acts as a strong oxidizing agent in acidic solution. During this process, the oxidation state changes from

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Solution

In an acidic solution, potassium dichromate (K2Cr2O7) acts as a strong oxidizing agent. During this process, the oxidation state of chromium changes from +6 to +3.

Here's the step-by-step process:

  1. The chemical formula for potassium dichromate is K2Cr2O7. In this compound, the oxidation state of chromium (Cr) is +6.

  2. When potassium dichromate is used as an oxidizing agent in an acidic solution, it gets reduced to Cr3+.

  3. The reduction half-reaction is: Cr2O7^2- + 14H+ + 6e- → 2Cr3+ + 7H2O. This shows that each chromium atom is reduced from an oxidation state of +6 to +3.

  4. Therefore, during this process, the oxidation state of chromium changes from +6 to +3.

This problem has been solved

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