A reaction that involves the transfer of electrons from one molecule to another is referred to as:

• A. a redox reaction
• B. an acid-base reaction
• C. a decomposition reaction
• D. a precipitation reaction

Answer: (A)

Verified step by step guidance

1. Understand the key concept: A reaction involving the transfer of electrons between molecules is characterized by changes in oxidation states of the species involved.
2. Recall the definition of a redox reaction: It is a chemical reaction where oxidation (loss of electrons) and reduction (gain of electrons) occur simultaneously.
3. Compare with other reaction types: Acid-base reactions involve proton transfer, decomposition reactions involve breaking down a compound into simpler substances, and precipitation reactions involve formation of an insoluble solid.
4. Identify that the transfer of electrons specifically matches the description of a redox reaction.
5. Conclude that the correct classification for a reaction involving electron transfer is a redox reaction.