Among the following types of chemical reactions,application of metal reactivity series is involved with which reaction?

Options

A. chemical combination
B. chemical displacement
C. chemical decomposition
D. double decomposition

Explanation

To determine which type of chemical reactions involves the application of the metal reactivity series, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Reactivity Series**:
The reactivity series is a list of metals arranged in order of decreasing reactivity. Metals higher in the series can displace metals lower in the series from their compounds.

2. **Identify the Types of Reactions**:
There are several types of chemical reactions, including:
- Combination reactions
- Decomposition reactions
- Displacement reactions
- Double displacement reactions

3. **Focus on Displacement Reactions**:
Displacement reactions are those in which one element displaces another in a compound. For example, if a more reactive metal is placed in a solution of a less reactive metal's salt, the more reactive metal will displace the less reactive metal.

4. **Application of the Reactivity Series**:
The application of the reactivity series is crucial in displacement reactions. It helps predict whether a reaction will occur based on the relative reactivity of the metals involved. If the metal in the solution is less reactive than the metal being added, a reaction will occur.

5. **Conclusion**:
Therefore, the type of chemical reaction that involves the application of the metal reactivity series is **displacement reactions**.

### Final Answer:
The application of the metal reactivity series is involved with **displacement reactions**.

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