Please explain oxidation and reduction in terms of loss or gain of electrons with examples
Asked by Trisha Gupta | 24th Sep, 2021, 03:04: PM
- Oxidation is the loss of electrons and reduction is the gain of electrons.
- To explain the involvement of oxidation and reduction in the formation of molecular compounds, the concept of oxidation number was introduced.
Example: Hydrogen combining with oxygen to form water.
- In the formation of water, electron transfer is realised when hydrogen combines with oxygen.
- The hydrogen atom (H) goes from a neutral state, i.e. a zero state (H2) to a positive state in H2O, whereas the oxygen atom (O) goes from a neutral state, i.e. a zero state (O2) to a dinegative state in H2O.
- It is assumed that there is an electron transfer from H to O, and consequently, H2 is oxidised and O2 is reduced.
- The transfer of the charge is partial and considered an electron shift rather than a complete loss of electrons by hydrogen (H) and gain of electrons by oxygen (O).
Answered by Ramandeep | 24th Sep, 2021, 05:21: PM
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