Which of the following statements are correct ?
1.on the application of an electric direction field, the particles of lyophobic sol may move in either direction or not move at all
2. surface tension of lyophobic sols is similar to that of the dispersion medium.
3. electro-osmosis is the movement of the particles of dispersion medimum under the influence of an electric field.
Select the correct answer using codes given below:

Options

A. (I) (II) and (III)
B. (I) and (III)
C. (II) and (III)
D. (I) and (II)

Explanation

To solve the question regarding the correctness of the statements about lyophobic sols, we will analyze each statement one by one.

### Step-by-Step Solution:

1. **Analyzing Statement 1**:
- Statement: "On the application of an electric direction field, the particles of lyophobic sol may move in either direction or not move at all."
- Explanation: This statement is **false**. When an electric field is applied to a lyophobic sol, the particles undergo electrophoresis, which means they move towards the electrodes. Negatively charged particles move towards the anode, and positively charged particles move towards the cathode. Therefore, they do not move randomly or remain stationary; they move in a specific direction.

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