Give the number of ligand which are monodentate as well as ambidentate
`C_(3)^(2-),CH_(3)COO^(Θ), X^(Θ), H^(Θ), SO_(4)^(2-)` .

Explanation

To solve the question regarding the number of ligands that are monodentate as well as ambidentate from the given list, we will analyze each ligand one by one.

### Step-by-Step Solution:

1. **Understanding Monodentate Ligands**:
- Monodentate ligands have only one donor atom that can coordinate to the central metal atom. Examples include water (H₂O), ammonia (NH₃), and chloride ion (Cl⁻).

2. **Understanding Ambidentate Ligands**:
- Ambidentate ligands can coordinate to the central metal atom through two different donor atoms. Examples include thiocyanate (SCN⁻), which can bind through sulfur (S) or nitrogen (N), and nitrite (NO₂⁻), which can bind through nitrogen (N) or oxygen (O).

3. **Analyzing the Given Ligands**:
- **C₃²⁻**: This is a carbide ion and does not have two different donor atoms. It is not monodentate or ambidentate.
- **CH₃COO⁻ (Acetate)**: This is a monodentate ligand because it can donate one oxygen atom to the metal. It is not ambidentate since it does not have a second donor atom.
- **X⁻**: This represents a halide ion (like Cl⁻, Br⁻, etc.), which is a monodentate ligand. It is not ambidentate.
- **H⁻ (Hydride)**: This is a monodentate ligand as it has only one donor atom (H). It is not ambidentate.
- **SO₄²⁻ (Sulfate)**: This ion can act as a bidentate ligand (binding through two oxygen atoms) but is not ambidentate since it does not have two different donor atoms.

4. **Conclusion**:
- After analyzing all the ligands, we find that none of the given ligands are both monodentate and ambidentate. Therefore, the answer is **0**.

### Final Answer:
The number of ligands that are monodentate as well as ambidentate is **0**.