Read the following and answer the question:
Chemistry in Automobiles:
For an internal combustion engine to move a vehicle down the road, it must convert the energy stored in the fuel into mechanical energy to drive the wheels. In your car,the distributor and battery provide this starting energy by creating an electrical "spark", which helps in combustion of fuels like gasoline. Below is the reaction depicting complete combustion of gasoline in full supply of air:
`2C_(8)H_(18)(l) +25O_(2)(g) to 16'X' +Y`
Identify the types of chemical reaction occurring during the combustion of fuel:

Options

A. Oxidation & Endothermic reaction
B. Decomposition & Exothermic reaction
C. Oxidation & Exothermic reaction
D. Combination & Endothermic reaction

Explanation

To identify the types of chemical reactions occurring during the combustion of fuel, we will analyze the given reaction step by step.

### Step 1: Write the Balanced Chemical Equation
The reaction provided is:
\[ 2C_{8}H_{18}(l) + 25O_{2}(g) \rightarrow 16CO_{2}(g) + 18H_{2}O(l) \]

### Step 2: Identify the Reactants and Products
- **Reactants:** The reactants in this reaction are octane (C₈H₁₈) and oxygen (O₂).
- **Products:** The products of the reaction are carbon dioxide (CO₂) and water (H₂O).

### Step 3: Classify the Reaction
1. **Combustion Reaction:** This reaction is a combustion reaction because it involves the burning of a fuel (octane) in the presence of oxygen to produce heat and light.
2. **Oxidation Reaction:** During combustion, the carbon in octane is oxidized to carbon dioxide, and the hydrogen is oxidized to water. This indicates that oxidation is occurring.
3. **Exothermic Reaction:** The combustion of octane releases energy in the form of heat, making it an exothermic reaction.

### Conclusion
The types of chemical reactions occurring during the combustion of fuel (octane) are:
- Combustion Reaction
- Oxidation Reaction
- Exothermic Reaction