Which reaction involves a redox process where the oxidizing agent gains electrons without oxygen loss?
In 2Na + Br₂ → 2NaBr, Br₂ (Br: 0 to -1) gains electrons, oxidizing Na (0 to +1), no oxygen involved.
Ref: NCERT Class 11 Chemistry > Chapter 7: Redox Reactions > Topic: Electrode Potential and Electrochemical Series and Galvanic Cells