When cyclohexane is poured in water, it floats because:

Options

A. (a) Cyclohexane is in boat from.
B. (b) Cyclohexane is denser than water.
C. (c) Cyclohexane is in chair form.
D. (d) Cycloherxane is in crown from.

Explanation

To answer the question "When cyclohexane is poured in water, it floats because:", we can analyze the properties of cyclohexane and water step by step.

### Step-by-Step Solution:

1. **Understanding Cyclohexane**:
- Cyclohexane is a cyclic alkane with the chemical formula C6H12. It is a colorless, flammable liquid with a distinctive detergent-like odor.

2. **Polarity of Cyclohexane**:
- Cyclohexane is a non-polar molecule. Non-polar substances do not mix well with polar substances, such as water.

3. **Density Comparison**:
- The density of cyclohexane is approximately 0.786 g/cm³, while the density of water is about 1.0 g/cm³. Since cyclohexane has a lower density than water, it will float on the surface.

4. **Behavior in Water**:
- When cyclohexane is poured into water, it does not dissolve due to its non-polar nature. Instead, it forms a separate layer on top of the water.

5. **Conclusion**:
- The reason cyclohexane floats on water is that it is less dense than water. Therefore, the correct explanation is that cyclohexane has a lower density compared to water.

### Final Answer:
Cyclohexane floats on water because it is less dense than water.

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