Statement I: For colloidal particles, the values of colligative properties are of small order as compared to values shown by true solutions at same concentration.
Statement II: For colloidal particles, the potential difference between the fixed layer and the diffused layer of same charges is called the electrokinetic potential or zeta potential.
In the light of the above statements, choose the correct answer from the options given below

Options

A. Statement I is false but Statement II is true
B. Both Statement I and Statement II are true
C. Statement I is true but Statement II is false
D. Both Statement I and Statement II are false

Answer

To analyze the given statements, let's break them down step by step.

### Step 1: Evaluate Statement I
**Statement I:** For colloidal particles, the values of colligative properties are of small order as compared to values shown by true solutions at the same concentration.

- **Explanation:** Colligative properties (such as boiling point elevation, freezing point depression, osmotic pressure, etc.) depend on the number of solute particles in a solution. In true solutions, the solute particles are typically small and numerous, leading to significant colligative properties. In contrast, colloidal particles are larger and less numerous, resulting in smaller values for colligative properties. Therefore, this statement is **true**.

### Step 2: Evaluate Statement II
**Statement II:** For colloidal particles, the potential difference between the fixed layer and the diffused layer of same charges is called the electrokinetic potential or zeta potential.

- **Explanation:** In colloidal systems, particles can develop a charge and create a double layer of charge around them. The fixed layer is the layer of ions that is tightly associated with the colloidal particle, while the diffused layer is the region where the charge is less concentrated. The potential difference between these two layers is indeed referred to as the zeta potential. Therefore, this statement is also **true**.

### Conclusion
Both statements are true and independent of each other. Thus, the correct answer is that both statements are true.

### Final Answer:
Both Statement I and Statement II are true.

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