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- Subject
- Electrochemistrychemistry-mcqs › electrochemistry
- Published
- 18 Mar 2019
- Last updated
- 28 May 2026
Explanation
In potassium dichromate (K2Cr2O7), each potassium ion has a +1 charge and oxygen has a -2 charge. The overall charge is neutral, so the oxidation state of chromium must balance the charges. Calculating accordingly, chromium exhibits an oxidation state of +6.
More Electrochemistry MCQs
Practice related questions from the same subject.
- 1.What is the standard reduction potential value for zinc (Zn)?
- 2.What term describes the effective charge assigned to an atom within a molecule?
- 3.What material is used as the anode in an alkaline battery?
- 4.What is the typical density of sulfuric acid used in a lead-acid battery?
- 5.What type of cell is referred to as a secondary cell?
- 6.A higher standard reduction potential indicates a greater likelihood to __________?
- 7.In an electrochemical cell, the electrode that functions as the anode is always located at which position?
- 8.What determines the electrode potential of zinc?
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