The reaction in which oxidation and reduction occurs simultaneously is called

Options

A. electrolysis
B. redox
C. oxidation
D. ionisation

Answer

**Step-by-Step Text Solution:**

1. **Understanding Oxidation and Reduction:**
- Oxidation is defined as the process where an atom or molecule loses electrons.
- Reduction is the process where an atom or molecule gains electrons.

2. **Simultaneous Occurrence:**
- In certain chemical reactions, both oxidation and reduction occur at the same time. This means that while one substance is losing electrons (oxidation), another substance is gaining electrons (reduction).

3. **Term for the Reaction:**
- The type of reaction in which both oxidation and reduction happen simultaneously is known as a "Redox reaction." The term "Redox" is derived from the combination of "Reduction" and "Oxidation."

4. **Example of a Redox Reaction:**
- A classic example of a redox reaction is the reaction between sodium (Na) and chlorine (Cl):
- Sodium (Na) loses electrons to form Na⁺ ions (oxidation).
- Chlorine (Cl) gains electrons to form Cl⁻ ions (reduction).
- This can be represented as:
\[ 2Na + Cl_2 \rightarrow 2Na^+ + 2Cl^- \]

5. **Conclusion:**
- Therefore, the correct answer to the question is that the reaction in which oxidation and reduction occur simultaneously is called a "Redox reaction."

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