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The reaction, 3MnO2 (s) + 4Al(s) → 3Mn(ℓ) + 2Al2O5 (s) + Heat is

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The reaction, 3MnO2 (s) + 4Al(s) → 3Mn(ℓ) + 2Al2O5 (s) + Heat is an example of:

A. Combination and exothermic reaction 

B. Combination and endothermic reaction. 

C. Displacement and exothermic reaction. 

D. Displacement and endothermic reaction.

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In the given reaction,

3MnO2 (s) + 4Al(s) → 3Mn(ℓ) + 2Al2O5 (s) + Heat 

Aluminum being more reactive displaces the manganese metal and forms a new compound. Hence it is a displacement reaction.

The heat is also released along with the formation of products, hence it is an exothermic reaction.

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