Which property of colloids is not dependent on the change on colloidal particles?

Options

A. coagulation
B. Electrophoresis
C. Electroosmosis
D. Tyndall effect

Explanation

To determine which property of colloids is not dependent on the charge of colloidal particles, we can analyze each of the given options:

1. **Coagulation**: This process involves the neutralization of charged colloidal particles when a suitable electrolyte is added. Since coagulation relies on the charge of the particles to facilitate their aggregation, it is dependent on the charge.

2. **Electrophoresis**: This process occurs when colloidal particles move in an electric field due to their charge. The movement of these particles is directly related to their charge, making this property also dependent on the charge of the colloidal particles.

3. **Electroosmosis**: Similar to electrophoresis, electroosmosis involves the movement of liquid in response to an electric field, which is influenced by the charge on the colloidal particles. Therefore, this property is also dependent on the charge.

4. **Tyndall Effect**: The Tyndall effect refers to the scattering of light by colloidal particles. This phenomenon occurs regardless of the charge on the particles, as it is based on the size and concentration of the particles in the colloid. Thus, the Tyndall effect is not dependent on the charge of the colloidal particles.

Based on this analysis, the property of colloids that is not dependent on the charge of colloidal particles is the **Tyndall effect**.

### Summary of Steps:
1. Analyze coagulation - dependent on charge.
2. Analyze electrophoresis - dependent on charge.
3. Analyze electroosmosis - dependent on charge.
4. Analyze Tyndall effect - not dependent on charge.