A small amount of the sample of a soil was mixed with water in beaker. After stirring for sometime, the beaker was allowed to stand. The mud was found to settle down. The liquid above the mud was carefully filtered. The filtrate will be

Options

A. a true solution
B. a colloidal solution
C. can be a true solution or a colloidal solution
D. a suspension.

Explanation

To solve the question, we will analyze the process described and determine what the filtrate contains after filtering the mixture of soil and water.

### Step-by-Step Solution:

1. **Mixing Soil with Water**:
- A small amount of soil is mixed with water in a beaker. This creates a mixture where soil particles are suspended in water.

2. **Stirring the Mixture**:
- The mixture is stirred to help break down the soil particles and distribute them throughout the water.

3. **Allowing the Mixture to Stand**:
- After stirring, the beaker is allowed to stand. This allows the heavier soil particles (mud) to settle at the bottom due to gravity.

4. **Settling of Mud**:
- The mud settles down, leaving a clearer liquid above it. This liquid is a mixture of water and any fine particles that did not settle.

5. **Filtering the Liquid**:
- The liquid above the settled mud is carefully filtered. During this process, the larger mud particles remain on the filter paper, while smaller particles and water pass through.

6. **Composition of the Filtrate**:
- The filtrate will contain fine mud particles that are still suspended in the water. These fine particles do not settle down and remain dispersed in the water.

7. **Nature of the Filtrate**:
- Since the fine mud particles are dispersed in the water and do not settle out, the resulting mixture is classified as a colloidal solution. This is a type of heterogeneous mixture where the composition is not uniform, and the particles remain suspended.

### Conclusion:
The filtrate obtained after filtering the mixture of soil and water will be a **colloidal solution** containing fine mud particles dispersed in water.

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