Question detail
Which of the following statements correctly describes a redox reaction?
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
MCQ
Type
practice
Style
Topic
Oxidation, reduction and redox equations
Question
- A. It involves the transfer of protons between reactants.
- B. It involves the transfer of electrons between reactants.
- C. It involves the formation of ionic compounds only.
- D. It involves the breaking of covalent bonds.
Answer
It involves the transfer of electrons between reactants.
Explanation
Redox reactions are characterized by the transfer of electrons, where one species is oxidized (loses electrons) and another is reduced (gains electrons).
Common mistake
Combining Half Equations
Students often forget to balance the charges when combining half equations, leading to incorrect overall redox equations.
To fix this, ensure that both the number of atoms and the charges are balanced. For example, when combining the half equations for oxidation and reduction, adjust the coefficients as necessary to achieve balance. This can be done by adding electrons to the side with the higher positive charge until both sides are equal. After balancing, write the overall redox equation. Always check that both mass and charge are conserved.
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