Select the correct statements `(s)` about `SHE`.

Options

A. `E^(c-)` of `SHE` is arbitrarily assumed to be zero.
B. `E^(c-)` of `SHE` is equal to zero.
C. `SHE` refers as `underset(1 ba r)(Pt,H_(2)(g))|underset(a=1)(H^(o+)(aq))`at `25^(@)C`.
D. `SHE` is very susceptible to dissolved `O_(2),H_(20S` and all other reducing agents.

Explanation

To determine which statements about the Standard Hydrogen Electrode (SHE) are correct, we will analyze each statement step by step.

### Step-by-Step Solution:

1. **Understanding the Standard Hydrogen Electrode (SHE)**:
- The SHE is a reference electrode used in electrochemistry. It consists of a platinum electrode in contact with hydrogen gas at a pressure of 1 bar and an acidic solution with a concentration of H⁺ ions at 1 mol/L.

2. **Evaluating Statement A**:
- **Statement**: The electrode potential of SHE is arbitrarily assumed to be zero.
- **Analysis**: This statement is correct. The standard electrode potential of SHE is defined as zero volts, which serves as a reference point for measuring other electrode potentials.

3. **Evaluating Statement B**:
- **Statement**: The standard electrode potential (E°) of SHE is equal to zero.
- **Analysis**: This statement is also correct. As mentioned, the standard electrode potential of SHE is defined to be zero volts.

4. **Evaluating Statement C**:
- **Statement**: The representation of SHE is correct as platinum electrode with hydrogen gas and H⁺ ions.
- **Analysis**: This statement is correct. The SHE is represented as:
\[ \text{Pt} | \text{H}_2(g) | \text{H}^+(aq) \]
- This notation indicates the platinum electrode, hydrogen gas, and hydrogen ions in solution.

5. **Evaluating Statement D**:
- **Statement**: SHE is susceptible to dissolve oxygen, hydrogen sulfide, and other reducing agents.
- **Analysis**: This statement is correct. The presence of gases like O₂ and H₂S can affect the concentration of H⁺ ions in the solution, thus influencing the electrode potential of SHE.

### Conclusion:
All statements A, B, C, and D about the Standard Hydrogen Electrode (SHE) are correct.

### Final Answer:
- All statements (A, B, C, D) are correct regarding the Standard Hydrogen Electrode (SHE).

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