Why is burning of magnesium both a combination reaction and an oxidation reaction?
Answer and explanation
Correct answer: Two substances combine and oxygen adds to magnesium
When magnesium burns, it reacts with oxygen according to 2Mg + O₂ → 2MgO. Two reactants combine to form one principal product, magnesium oxide, so the reaction is a combination reaction. At the same time, oxygen is added to magnesium, which satisfies the school-level definition of oxidation. It is not a double displacement, decomposition or dissolution process. Therefore option A is correct.
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What is the correct answer to this question?
Two substances combine and oxygen adds to magnesium
Why is this the correct answer?
When magnesium burns, it reacts with oxygen according to 2Mg + O₂ → 2MgO. Two reactants combine to form one principal product, magnesium oxide, so the reaction is a combination reaction. At the same time, oxygen is added to magnesium, which satisfies the school-level definition of oxidation. It is not a double displacement, decomposition or dissolution process. Therefore option A is correct.
Which subject and chapter does this question cover?
This is a Class 10 Science question. Chapter: Chemical Substances – Nature and Behaviour. Topic: Chemical Reactions and Equations.
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