The group that consists of only gaseous elements is 

Options

A. VIIA
B. VIA
C. Zero group
D. VIIA & Zero group

Answer

To determine which group consists of only gaseous elements, we can analyze the groups mentioned in the question: 6A, 7A, and 0 group.

### Step-by-Step Solution:

1. **Identify the Elements in Group 6A**:
- Group 6A includes: Oxygen (O), Sulfur (S), Selenium (Se), Tellurium (Te), and Polonium (Po).
- Among these, only Oxygen is a gas at room temperature. The others are either solids or metalloids.

2. **Identify the Elements in Group 7A**:
- Group 7A includes: Fluorine (F), Chlorine (Cl), Bromine (Br), Iodine (I), and Astatine (At).
- In this group, Fluorine and Chlorine are gases, while Bromine is a liquid and Iodine and Astatine are solids.

3. **Identify the Elements in Group 0**:
- Group 0 (also known as the Noble Gases) includes: Helium (He), Neon (Ne), Argon (Ar), Krypton (Kr), Xenon (Xe), and Radon (Rn).
- All elements in this group are gases at room temperature.

4. **Conclusion**:
- From the analysis, we see that Group 0 consists entirely of gaseous elements. Therefore, the group that consists of only gaseous elements is the 0 group.

### Final Answer:
The group that consists of only gaseous elements is the **0 group**.

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