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

1.	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.
Answer» 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.

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.

Answer»

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.