Statement I: Conc. `H_2SO_4` can be used for drying `H_2S` gas
Statement II: Conc. `H_2SO_4` shows very good dehydrat- ing property.

Answer

To analyze the statements given in the question, we will break down the information provided in Statement I and Statement II step by step.

### Step 1: Understanding Statement I
**Statement I:** Concentrated \( H_2SO_4 \) can be used for drying \( H_2S \) gas.

- **Explanation:** Drying a gas means removing any moisture or water vapor present in it. A drying agent is a substance that absorbs water. While concentrated \( H_2SO_4 \) is a strong dehydrating agent, it is not typically used to dry \( H_2S \) gas because \( H_2S \) can react with \( H_2SO_4 \), leading to the formation of sulfur and other products. Therefore, using concentrated \( H_2SO_4 \) to dry \( H_2S \) is not appropriate.

### Step 2: Understanding Statement II
**Statement II:** Concentrated \( H_2SO_4 \) shows very good dehydrating property.

- **Explanation:** Concentrated sulfuric acid is indeed known for its strong dehydrating properties. It can remove water from various substances and is commonly used in chemical reactions where dehydration is required. Thus, this statement is true.

### Conclusion
- **Statement I is False:** Concentrated \( H_2SO_4 \) should not be used to dry \( H_2S \) gas due to the potential for chemical reaction.
- **Statement II is True:** Concentrated \( H_2SO_4 \) is a good dehydrating agent.

### Final Answer
- The correct evaluation of the statements is that Statement I is false, while Statement II is true.