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Class 10 Science Medium Mcq English Medium

In the equation Mg + O2 -> MgO, what is magnesium in this reaction?

Question
In the equation Mg + O2 -> MgO, what is magnesium in this reaction?
A product
A reactant
A catalyst
A precipitate
Answer
A reactant
Detailed Explanation
Magnesium is a substance that undergoes chemical change in this reaction, so it is a reactant, along with oxygen.
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