Which of the following statement is false

Options

A. Every solid substance can be brought into colloidal state
B. Colloidal particle carry electrical charges
C. Every solid substance can be made to behave like a lyophilic colloid
D. Addition of electrolytes causes flocculation of colloidal particles

Explanation

To determine which statement is false among the given options related to colloidal chemistry, we can analyze each statement one by one.

### Step 1: Analyze the statements

1. **Every solid substance can be brought into a colloidal state.**
- This statement suggests that any solid can be converted into a colloid by dissolving it in appropriate liquids and reducing particle size. However, not all solids can form colloids; some may not disperse well or may not be soluble in the chosen solvent.

2. **Colloidal particles carry electrical charges.**
- This statement is true. Colloidal particles typically carry electrical charges, which helps in stabilizing the colloid and preventing aggregation.

3. **Every solid substance can behave like a lyophilic colloid.**
- This statement is false. Lyophilic colloids are those that have an affinity for the solvent, and not all solids can form such colloids. Many solids do not interact favorably with solvents to form lyophilic colloids.

4. **Addition of electrolytes causes flocculation of colloidal particles.**
- This statement is true. The addition of electrolytes can neutralize the charges on colloidal particles, leading to aggregation or flocculation.

### Step 2: Identify the false statement

Based on the analysis:
- The first statement is misleading but not entirely false.
- The second statement is true.
- The third statement is false because not every solid can behave like a lyophilic colloid.
- The fourth statement is true.

### Conclusion

The false statement is: **"Every solid substance can behave like a lyophilic colloid."**

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