The chemical name of `NaH_(2)PO_(4)` is `-`

Options

A. Sodium phosphite
B. Sodium dihydrogen phosphate
C. Phosphoric acid
D. Phosphorous acid

Explanation

To determine the chemical name of `NaH₂PO₄`, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Components**:
- The formula `NaH₂PO₄` consists of sodium (Na), hydrogen (H), phosphorus (P), and oxygen (O).

2. **Recognize the Cation and Anion**:
- `Na` is the sodium ion, which is a cation.
- The remaining part, `H₂PO₄`, is the anion.

3. **Determine the Anion's Name**:
- The anion `H₂PO₄` is known as the dihydrogen phosphate ion. This is because it contains two hydrogen atoms and one phosphate group (PO₄).

4. **Combine the Names**:
- When naming the compound, we start with the cation followed by the anion. Therefore, we combine the name of the cation (sodium) with the name of the anion (dihydrogen phosphate).

5. **Final Name**:
- The complete name of `NaH₂PO₄` is Sodium Dihydrogen Phosphate.

### Conclusion:
Thus, the chemical name of `NaH₂PO₄` is **Sodium Dihydrogen Phosphate**.