Identify the type of chemical reaction in the following statement and explain each of them :
Heating of manganese dioxide with aluminium powder.

Explanation

### Step-by-Step Solution:

1. **Identify the Reactants**: The reactants in this reaction are manganese dioxide (MnO₂) and aluminium powder (Al).

2. **Understand the Reactivity Series**: In the reactivity series of metals, aluminium is more reactive than manganese. This means that aluminium has a greater tendency to lose electrons and form positive ions compared to manganese.

3. **Determine the Type of Reaction**: Since aluminium is more reactive than manganese, it will displace manganese from manganese dioxide. This leads to the formation of aluminium oxide (Al₂O₃) and manganese (Mn) as products.

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