select the false statement (S) :

Options

A. Brownian motion and Tyndall effect are shown by true solutions
B. sorption process is combinations of adsorption and adsorption process
C. Law Hardy schulze is related with coagultion of a sol
D. Higher is the gold number greater will be the protective power of a colliod

Answer

To solve the question of selecting the false statement from the provided options, we will analyze each statement one by one.

### Step-by-Step Solution:

1. **Statement 1: Brownian motion and Tyndall effect are shown by true solutions.**
- **Analysis:**
- Brownian motion is the random movement of particles suspended in a fluid, which is observable in colloidal solutions, not true solutions.
- The Tyndall effect, which is the scattering of light by particles in a colloid, also does not occur in true solutions.
- **Conclusion:** This statement is **false**.

2. **Statement 2: Sorption process is a combination of adsorption and absorption process.**
- **Analysis:**
- Sorption indeed refers to the process where both adsorption (the adhesion of molecules from a gas, liquid, or dissolved solid to a surface) and absorption (the process where one substance takes in another) occur simultaneously.
- **Conclusion:** This statement is **true**.

3. **Statement 3: Law of Hardy-Solzay is related with coagulation of a sol.**
- **Analysis:**
- The law of Hardy-Solzay states that the greater the valency of the effective ion, the greater the coagulation power. This is indeed related to the coagulation of colloidal solutions.
- **Conclusion:** This statement is **true**.

4. **Statement 4: Higher the gold number, greater will be the protective power of a colloid.**
- **Analysis:**
- The gold number is inversely proportional to the protective power of a colloid. This means that a higher gold number indicates a lower protective power, contradicting the statement.
- **Conclusion:** This statement is **false**.

### Final Answer:
The false statements are **Statement 1** and **Statement 4**.