11. What is the name of a reaction in which electrons are transferred from one atom to another?
Answer: C
Redox reaction
A reaction in which electrons are transferred from one atom to another is known as a redox reaction. This process involves the reduction and oxidation of different species, where one atom loses electrons (oxidation) and another gains electrons (reduction).
A) combustion reaction
A combustion reaction is a chemical reaction that typically involves the burning of a substance in the presence of oxygen, producing heat and light. While electrons may be involved in the process, it does not specifically refer to the transfer of electrons between atoms, making this option incorrect.
B) synthesis reaction
A synthesis reaction is a type of chemical reaction where two or more reactants combine to form a single product. This reaction does not inherently involve the transfer of electrons; rather, it focuses on the formation of new compounds. Therefore, this option is also incorrect.
C) redox reaction
A redox reaction, short for reduction-oxidation reaction, specifically describes the process where electrons are transferred between atoms. This transfer is central to the definition of redox reactions, making this option the correct choice.
D) double-displacement reaction
A double-displacement reaction, also known as a metathesis reaction, involves the exchange of ions between two compounds to form new compounds. This type of reaction does not primarily involve electron transfer, so it is not applicable to the question, rendering this option incorrect.
Conclusion
The correct answer, redox reaction, accurately describes the process of electron transfer between atoms, distinguishing it from other types of reactions that do not involve such exchanges. Each of the other options fails to encapsulate the essential characteristic of electron transfer, affirming that redox reactions are uniquely identified by this fundamental process.