_____ reaction causes more reactive metal to replace lesser reactive metal from the latters compound (`"Decomposition"//"Displacement"`)

Explanation

To solve the question, we need to identify the type of reaction that allows a more reactive metal to replace a lesser reactive metal from its compound. The options given are "Decomposition" and "Displacement."

### Step-by-Step Solution:

1. **Understanding the Terms**:
- **Decomposition Reaction**: This type of reaction involves a single reactant breaking down into simpler products. For example, when potassium chlorate (KClO3) is heated, it decomposes into potassium chloride (KCl) and oxygen (O2).
- **Displacement Reaction**: In this reaction, a more reactive metal displaces a less reactive metal from its compound. For example, when zinc (Zn) reacts with sulfuric acid (H2SO4), zinc displaces hydrogen (H) because it is more reactive.

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