Oxidation state of an atom represents____________________?
Correct answer: C. Apparent charge in compound
- A. Number of electrons gained
- B. Number of electrons lost
- C. Apparent charge in compound
- D. Its vacancies
Explanation
Oxidation state is the apparent charge assigned to an atom when bonding electrons are treated as belonging to the more electronegative atom. Students commonly choose a or b by treating oxidation state as only electrons gained or only electrons lost, whereas it can represent either process and is an apparent charge.
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About Oxidation and Reduction
Oxidation involves loss of electrons, increase in oxidation number or addition of oxygen, while reduction involves electron gain, decrease in oxidation number or removal of oxygen. The topic covers oxidising and reducing agents, oxidation-number changes, redox equations and the distinction between oxidation at the anode and reduction at the cathode.
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