Which of the following solvent will be able to dissolve dioxygen appreciable?

Options

A. 1, 2, 3- trithydroxy benzene
B. Benzene
C. Toluene
D. Water

Answer

To determine which solvent can dissolve dioxygen (O2) appreciably, we need to analyze the given options based on their chemical structures and properties.

### Step-by-Step Solution:

1. **Identify the Solvents**: The question provides four options, one of which is 1,2,3-trihydroxybenzene (also known as pyrogallol). The other options likely include common solvents like benzene, toluene, and water.

2. **Understand Dioxygen**: Dioxygen (O2) is a nonpolar molecule. Therefore, it tends to dissolve better in nonpolar or slightly polar solvents.

3. **Analyze 1,2,3-Trihydroxybenzene (Pyrogallol)**:
- The structure of 1,2,3-trihydroxybenzene has three hydroxyl (–OH) groups attached to a benzene ring.
- Hydroxyl groups can form hydrogen bonds with water and can also interact with dioxygen, allowing for the absorption of O2.
- Pyrogallol is known for its ability to absorb dioxygen, which indicates it can dissolve O2 appreciably.

4. **Evaluate Other Options**:
- **Benzene**: A nonpolar solvent, but it does not have functional groups that can significantly interact with O2.
- **Toluene**: Similar to benzene, it is also nonpolar and does not have the ability to dissolve O2 appreciably.
- **Water**: While water is polar and can dissolve some gases, it does not have the same affinity for dioxygen as pyrogallol does.

5. **Conclusion**: Among the options, 1,2,3-trihydroxybenzene (pyrogallol) is the only solvent that can dissolve dioxygen appreciably due to its hydroxyl groups that facilitate the interaction with O2.

### Final Answer:
The correct answer is **A) 1,2,3-trihydroxybenzene (Pyrogallol)**.