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In the context of a galvanic cell, which statement correctly defines oxidation?
AGain of electrons or decrease in oxidation number
BLoss of electrons or increase in oxidation number
CGain of protons without change in electrons
DDecrease in charge due to neutralization
Answer & Solution
Correct answer: B. Loss of electrons or increase in oxidation number
Oxidation is defined as the loss of electrons, which corresponds to an increase in oxidation number. For example, $Zn \rightarrow Zn^{2+} + 2e^{-}$ shows zinc undergoing oxidation.
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