Classify each of the following reactions as combination, decomposition, displacement or double displacement reactions :
`MgO_((s))+C_((s))overset("At high temp.")toCO_((g))+Mg_((s))`

Explanation

To classify the given reaction `MgO_(s) + C_(s) → CO_(g) + Mg_(s)` as a combination, decomposition, displacement, or double displacement reaction, we can follow these steps:

### Step 1: Identify the Reactants and Products
- The reactants in this reaction are magnesium oxide (MgO) and carbon (C).
- The products formed are carbon monoxide (CO) and magnesium (Mg).

### Step 2: Analyze the Type of Reaction
- **Combination Reaction**: This type involves two or more reactants combining to form a single product. In this case, we have two reactants forming two products, so it is not a combination reaction.
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