Gamma rays produce maximum ionization in gases.

Answer

To determine whether the statement "Gamma rays produce maximum ionization in gases" is true or false, we can analyze the ionizing power of different types of radiation: alpha rays, beta rays, and gamma rays.

### Step-by-Step Solution:

1. **Understanding Ionization**: Ionization refers to the process by which neutral atoms or molecules gain or lose electrons, resulting in the formation of ions. The ability of radiation to ionize gases is referred to as its ionizing power.

2. **Types of Radiation**: The three main types of radiation we need to consider are:
- **Alpha rays (α)**: These are positively charged particles (helium nuclei) and have a high mass.
- **Beta rays (β)**: These are high-energy, high-speed electrons or positrons.
- **Gamma rays (γ)**: These are high-energy electromagnetic radiation (photons) and have no mass or charge.

3. **Comparing Ionizing Power**:
- Alpha rays have the highest ionizing power due to their mass and charge. They can cause significant ionization in a short distance.
- Beta rays have a moderate ionizing power, being less effective than alpha rays but more effective than gamma rays.
- Gamma rays have the lowest ionizing power because they are uncharged and interact less with matter.

4. **Conclusion on the Statement**: Since alpha rays produce the maximum ionization in gases, and gamma rays produce the least, the statement "Gamma rays produce maximum ionization in gases" is false.

5. **Final Answer**: Therefore, the answer to the question is **False**.