Dilute `H_(2)SO_(4)` can be used in group of dil HCI. True/False

Explanation

To determine whether dilute \( H_2SO_4 \) can be used in the group of dilute \( HCl \), we need to analyze the behavior of these acids in the context of qualitative inorganic salt analysis.

### Step-by-Step Solution:

1. **Understanding the Role of Acids in Salt Analysis:**
- In qualitative analysis, acids are used to dissolve salts and to provide a medium for the precipitation of certain ions.
- Dilute hydrochloric acid (\( HCl \)) is commonly used because it provides \( H^+ \) ions and chloride ions.

2. **Common Ion Effect:**
- When \( HCl \) is present, it provides \( H^+ \) ions, which can affect the ionization of other acids, such as hydrogen sulfide (\( H_2S \)).
- The presence of common \( H^+ \) ions from \( HCl \) decreases the ionization of \( H_2S \), leading to fewer sulfide ions available for precipitation.

3. **Properties of Dilute \( H_2SO_4 \):**
- Dilute sulfuric acid (\( H_2SO_4 \)) is also a strong acid and a good source of \( H^+ \) ions.
- It can also precipitate certain metal ions (like lead, zinc, barium, calcium, cerium) as their sulfates.

4. **Comparison of \( HCl \) and \( H_2SO_4 \):**
- While both acids provide \( H^+ \) ions, the presence of sulfate ions from \( H_2SO_4 \) can lead to the precipitation of different metal ions compared to \( HCl \).
- However, the key point is that \( H_2SO_4 \) does not interfere with the analysis of Group II sulfides in the same way that \( HCl \) does.

5. **Conclusion:**
- Since dilute \( H_2SO_4 \) can be used without significantly affecting the ionization of sulfides and can also precipitate certain metal ions, the statement that dilute \( H_2SO_4 \) can be used in the group of dilute \( HCl \) is **True**.

### Final Answer:
**True**