The following reaction is an example of `CH_(4)+2O_(2)rarrCO_(2)+2H_(2)O+"heat"+"light"`

Options

A. addition reaction
B. substitution reaction
C. combustion reaction
D. displacement reaction

Explanation

**Step-by-Step Solution:**

1. **Identify the Reactants and Products:**
- The given reaction is:
\[ CH_4 + 2O_2 \rightarrow CO_2 + 2H_2O + \text{"heat"} + \text{"light"} \]
- Here, the reactants are Methane (\(CH_4\)) and Oxygen (\(O_2\)).
- The products are Carbon Dioxide (\(CO_2\)), Water (\(H_2O\)), and energy in the form of heat and light.

2. **Classify the Type of Reaction:**
- This reaction involves the burning of a hydrocarbon (Methane) in the presence of oxygen.
- When hydrocarbons burn, they typically produce carbon dioxide and water, along with the release of energy (heat and light).

3. **Define the Reaction Type:**
- The reaction is classified as a **combustion reaction**.
- Combustion reactions are characterized by the reaction of a substance (usually a hydrocarbon) with oxygen to produce energy, carbon dioxide, and water.

4. **Conclusion:**
- Therefore, the reaction \(CH_4 + 2O_2 \rightarrow CO_2 + 2H_2O + \text{"heat"} + \text{"light"}\) is an example of a **combustion reaction**.