The combination of an element or compound with oxygen is called

Options

A. addition reaction
B. combination reaction
C. combustion
D. oxidation

Answer

To answer the question "The combination of an element or compound with oxygen is called," we can follow these steps:

### Step-by-Step Solution:

1. **Understanding the Reaction**:
- When an element or a compound reacts with oxygen, it undergoes a specific type of chemical reaction.

2. **Identifying the Type of Reaction**:
- The reaction where an element or compound combines with oxygen is known as an oxidation reaction.

3. **Defining Oxidation**:
- Oxidation can be defined as the process in which an element or compound loses electrons or increases its oxidation state, often involving the addition of oxygen.

4. **Examples of Oxidation**:
- For instance, when sulfur (S) reacts with oxygen (O₂), it forms sulfur dioxide (SO₂). This is an example of an oxidation reaction.

5. **Conclusion**:
- Therefore, the combination of an element or compound with oxygen is called **oxidation**.

### Final Answer:
The combination of an element or compound with oxygen is called **oxidation**.

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