A mixture of sulphur and carbon disulphide is

Options

A. heterogeneous and shows Tyndall efferct
B. homogeneous and shows Tyndall effect
C. heterogeneous and does not show Tyndall effect
D. homogeneous and does not show Tyndall effect

Explanation

To determine the nature of a mixture of sulfur and carbon disulfide, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Components**: The mixture consists of sulfur (S) and carbon disulfide (CS₂).

2. **Understand the Mixture Type**:
- A mixture can be classified as either homogeneous or heterogeneous.
- A homogeneous mixture has a uniform composition throughout, while a heterogeneous mixture has distinct, separate components.

3. **Analyze the Mixture**:
- When sulfur is mixed with carbon disulfide, the sulfur does not dissolve completely in the carbon disulfide. Instead, it remains as distinct particles within the liquid.
- This indicates that the mixture is not uniform, confirming it is a heterogeneous mixture.

4. **Determine if it is a Colloid**:
- A colloid is a specific type of heterogeneous mixture where the particle size is between 1 nanometer and 1000 nanometers, and these particles do not settle out over time.
- The mixture of sulfur and carbon disulfide can be classified as a colloid because the sulfur particles are dispersed in the carbon disulfide and do not settle out.

5. **Check for Tyndall Effect**:
- Colloids exhibit the Tyndall effect, which is the scattering of light by the dispersed particles.
- Since the sulfur particles are dispersed in the carbon disulfide, this mixture will scatter light, demonstrating the Tyndall effect.

6. **Conclusion**:
- Based on the above analysis, the mixture of sulfur and carbon disulfide is a heterogeneous mixture and a colloid that shows the Tyndall effect.

### Final Answer:
The mixture of sulfur and carbon disulfide is a **heterogeneous mixture and a colloid that shows the Tyndall effect**.