Which of the following is adsorbed to a maximum extent on a given amount of adsorbent?

Options

A. `H_(2)`
B. `N_(2)`
C. `O_(2)`
D. `SO_(2)`

Answer

To determine which substance is adsorbed to the maximum extent on a given amount of adsorbent, we need to consider the critical temperature (T_c) of each substance. The general rule is that a substance with a higher critical temperature will be adsorbed more extensively.

### Step-by-Step Solution:

1. **Identify the Substances**: First, we need to identify the substances provided in the options. Let's assume the options are:
- A: Substance 1
- B: Substance 2
- C: Substance 3
- D: SO₂ (Sulfur Dioxide)

2. **Research Critical Temperatures**: Next, we need to find the critical temperatures of the substances listed. The critical temperature is the temperature above which a gas cannot be liquefied, regardless of the pressure applied.

3. **Compare Critical Temperatures**:
- Look up the critical temperatures of the substances:
- For example, if we find:
- Substance 1: T_c = 100°C
- Substance 2: T_c = 150°C
- Substance 3: T_c = 200°C
- SO₂: T_c = 157°C
- Compare these values to determine which one is the highest.

4. **Determine Maximum Adsorption**: According to the rule, the substance with the highest critical temperature will be adsorbed to the maximum extent. In this case, if we find that SO₂ has a critical temperature of 157°C, and it is lower than Substance 3 (200°C), then Substance 3 would be adsorbed to a maximum extent.

5. **Conclusion**: Based on the critical temperatures, we conclude which substance is adsorbed maximally. If Substance 3 has the highest critical temperature, then the answer would be C. If SO₂ had the highest, then the answer would be D.

### Final Answer:
Based on the provided information, if SO₂ has the highest critical temperature, then the answer is D. However, if another substance has a higher critical temperature, that would be the correct answer.