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Distinguish between oxidation and reduction. |
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Answer» Oxidation: According to the classical concept, oxidation is a process of addition of oxygen or removal of hydrogen. Removal of hydrogen 2H2S + O2 → H2O + 2S Addition of oxygen C + O2 → CO2 According to the electronic concept, loss of electrons is called oxidation reaction. Ca → Ca2+ + 2e- During oxidation, oxidation number increases. Dining oxidation, reducing agent gets oxidised. Reduction: Reduction is a process of removal of oxygen or addition of hydrogen. Addition of hydrogen Ca + H2 → CaH2 Removal of oxygen Zn O + C → Zn + CO According to the electronic concept, gain of electrons is called reduction reaction. Zn2+ + 2e- → Zn During reduction, oxidation number decreases. During reduction, oxidising agent gets reduced. |
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