The process of reduction involves

Options

A. removed of hydrogen
B. gain electrons
C. addition of oxygen
D. loss of electrons

Answer

To answer the question "The process of reduction involves," we can break it down into clear steps:

### Step-by-Step Solution:

1. **Understanding Reduction**:
- Reduction is one half of a redox (reduction-oxidation) reaction. It involves the gain of electrons or the decrease in oxidation state of a substance.

2. **Key Definitions**:
- **Reduction** can be defined in terms of:
- **Oxygen**: The removal of oxygen from a compound.
- **Hydrogen**: The addition of hydrogen to a compound.
- **Electrons**: The gain of electrons by a substance.

3. **Comparison with Oxidation**:
- To better understand reduction, it is helpful to compare it with oxidation:
- **Oxidation** involves:
- Addition of oxygen.
- Removal of hydrogen.
- Loss of electrons.

4. **Conclusion**:
- Therefore, the process of reduction involves:
- The removal of oxygen,
- The addition of hydrogen,
- The gain of electrons.

### Final Answer:
The process of reduction involves the removal of oxygen, the addition of hydrogen, and the gain of electrons.

---