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Which is NOT an example of a redox reaction?*RustingCollisionThermite ReactionCellular Respiration

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Solution

The option that is NOT an example of a redox reaction is "Collision".

Redox reactions, or reduction-oxidation reactions, involve the transfer of electrons from one molecule to another.

  1. Rusting is a redox reaction where iron reacts with water and oxygen to form hydrated iron(III) oxide, commonly known as rust. In this process, iron is oxidized and oxygen is reduced.

  2. The thermite reaction is a famous redox reaction where aluminum reduces iron(III) oxide to produce iron and aluminum oxide. Here, aluminum is oxidized and iron(III) oxide is reduced.

  3. Cellular respiration is a series of redox reactions that occur in cells to produce energy. Glucose is oxidized to produce carbon dioxide and water, and in the process, oxygen is reduced.

  4. A collision, on the other hand, is a physical process, not a chemical one. It does not involve the transfer of electrons and hence, is not a redox reaction.

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