The reaction between magnesium and oxygen to form magnesium oxide is an example of a:

Subject: General Science

Topic: Chemical Reactions and Equations

Options:

1. Option A: Decomposition reaction
2. Option B: Displacement reaction
3. Option C: Combination reaction
4. Option D: Double displacement reaction

Correct Answer:

Option C: Combination reaction

Explanation:

In this reaction, two reactants (magnesium and oxygen) combine to form a single product (magnesium oxide). This is the definition of a combination reaction: 'Such a reaction in which a single product is formed from two or more reactants is known as a combination reaction.'