Final answer:
Redox reactions involve electron transfer, with examples including the combustion of gasoline, photosynthesis, and the rusting of iron. However, neutralization of an acid with a base is not a redox reaction as it involves no electron transfer.
Step-by-step explanation:
Oxidation-reduction, commonly known as redox reactions, are ubiquitous in chemical processes. They involve the transfer of electrons between substances, with one species being oxidized (losing electrons) and another being reduced (gaining electrons).
Examples of redox reactions include:
- Combustion of gasoline: This is a redox process where the hydrocarbons in gasoline react with oxygen from the air to form carbon dioxide and water, releasing energy in the form of heat. The hydrocarbons are oxidized, and oxygen is reduced.
- Photosynthesis: In this biological redox reaction, carbon dioxide and water are converted into glucose and oxygen using energy from sunlight. Water is oxidized to oxygen, and carbon dioxide is reduced to glucose.
- Rusting of iron: Iron reacts with oxygen and moisture to form rust, which is primarily iron oxide. Iron is oxidized while oxygen is reduced.
However, the neutralization of an acid with a base is not a redox reaction, as it does not involve the transfer of electrons but rather the formation of water and a salt from the reaction of the acid and base.