Kerosene burns more rapidly than coke because

Options

A. it has got more oxygen in it than coke
B. it is a liquid hydrocarbon
C. it has a low ignition temperature
D. none of these

Answer

To solve the question "Kerosene burns more rapidly than coke because," we need to analyze the properties of both substances and understand why kerosene has a faster combustion rate.

### Step-by-Step Solution:

1. **Understanding Combustion**:
- Combustion is a chemical reaction that occurs when a substance reacts with oxygen, producing heat and light. The rate of combustion can depend on several factors, including the state of the substance (solid, liquid, gas) and its ignition temperature.

2. **Properties of Kerosene**:
- Kerosene is a liquid hydrocarbon. It is made up of molecules that can easily vaporize and mix with air, which is essential for combustion.
- Kerosene has a relatively low ignition temperature, which means it can ignite and start burning at lower temperatures compared to many solid fuels.

3. **Properties of Coke**:
- Coke is a solid carbonaceous material derived from coal. It has a higher ignition temperature than kerosene, meaning it requires more heat to ignite.
- Being a solid, coke does not vaporize as easily as kerosene, which can limit the rate at which it burns.

4. **Comparison of Burning Rates**:
- Since kerosene is a liquid and has a lower ignition temperature, it can ignite and burn more quickly than coke, which is solid and requires higher temperatures to start burning.

5. **Conclusion**:
- Based on these properties, we can conclude that kerosene burns more rapidly than coke primarily because it has a low ignition temperature. Therefore, the correct answer is option 3: "It has a low ignition temperature."

### Final Answer:
Kerosene burns more rapidly than coke because it has a low ignition temperature.

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