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Originally, oxidation described the addition of which element?
AOxygen
BHydrogen
CNitrogen
DChlorine
Answer & Solution
Correct answer: A. Oxygen
1. The word oxidation comes from the element involved.
2. Early chemists watched substances combine with air.
3. So oxidation first meant the addition of oxygen.
_Source: NCERT Class 11 Chemistry Part II, Unit 8, Redox Reactions._
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