Decrease in Oxidation number is
Correct answer: B. Reduction
- A. Oxidation
- B. Reduction
- C. Both A and B
- D. None of these
Explanation
The increase in the oxidation state of an atom, through a chemical reaction, is known as oxidation; a decrease in the oxidation state is known as a reduction. Such reactions involve the formal transfer of electrons: a net gain in electrons being a reduction, and a net loss of electrons being oxidation.
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Electrochemistry describes electron transfer through oxidation and reduction, identifies oxidizing and reducing agents, and applies oxidation numbers to balance redox equations. It also covers electrode potential and the standard hydrogen electrode, which provides the reference for comparing the reduction tendencies of other electrodes.
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