How is burning of magnesium both combination and oxidation at the same time?
Answer and explanation
Correct answer: Magnesium combines with oxygen to form magnesium oxide
The reaction is represented as 2Mg + O₂ → 2MgO. It is a combination reaction because two reactants, magnesium and oxygen, form a single product, magnesium oxide. It is also oxidation because oxygen is added to magnesium during the reaction. The reaction is not dissolution, decomposition, or precipitation, so the alternatives do not describe the observed chemical change.
Frequently asked questions
What is the correct answer to this question?
Magnesium combines with oxygen to form magnesium oxide
Why is this the correct answer?
The reaction is represented as 2Mg + O₂ → 2MgO. It is a combination reaction because two reactants, magnesium and oxygen, form a single product, magnesium oxide. It is also oxidation because oxygen is added to magnesium during the reaction. The reaction is not dissolution, decomposition, or precipitation, so the alternatives do not describe the observed chemical change.
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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