Which of the following gases is adsorbed easily and more on activated charcoal 

Options

A. `CO_(2)(T_(c)=304K)`
B. `SO_(2)(T_(c)=430K)`
C. `H_(2)(T_(c)=23K)`
D. all gases adsorp to the same extent

Answer

To determine which gas is adsorbed easily and more on activated charcoal, we can follow these steps:

### Step-by-Step Solution:

1. **Understand Adsorption**: Adsorption is the process where molecules adhere to the surface of a solid or liquid. Activated charcoal is known for its high surface area and porous structure, making it an excellent adsorbent.

2. **Identify Key Factors**: The ease of adsorption of gases on activated charcoal is influenced by the gas's critical temperature (Tc). The critical temperature is the temperature above which a gas cannot be liquefied, regardless of the pressure applied.

3. **Liquefiable Gases**: Gases that can be easily liquefied (i.e., those with a higher critical temperature) tend to be adsorbed more readily. This is because they have stronger intermolecular forces that allow them to interact more effectively with the surface of the adsorbent.

4. **Compare Critical Temperatures**: To determine which gas is adsorbed more, we need to compare the critical temperatures of the given options. The gas with the highest critical temperature will be adsorbed more on activated charcoal.

5. **Identify the Gas**: Among common gases, sulfur dioxide (SO₂) has a relatively high critical temperature compared to other gases. Therefore, it is expected to be adsorbed more easily and in greater amounts on activated charcoal.

6. **Conclusion**: Based on the above analysis, sulfur dioxide (SO₂) is the gas that is adsorbed easily and more on activated charcoal due to its higher critical temperature.

### Final Answer:
Sulfur dioxide (SO₂) is the gas that is adsorbed easily and more on activated charcoal.

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