Which of the following statement is correct?

Options

A. Phosphinic acid is a diprotic acid while phosphonic acid is a monoprotic acid
B. Phosphinic acid is a monoprotic acid while phosphonic acid is a diprotic acid
C. Both are triprotic acids
D. Both are diprotic acids

Explanation

To determine which statement is correct regarding the acids mentioned in the video transcript, we need to analyze the information provided about phosphinic acid (H3PO2) and phosphonic acid (H3PO3).

### Step-by-Step Solution:

1. **Identify the Acids**:
- Phosphinic acid is represented as H3PO2.
- Phosphonic acid is represented as H3PO3.

2. **Determine the Number of Protons**:
- Phosphinic acid (H3PO2) has 2 acidic hydrogen atoms. This means it can donate 2 protons (H+ ions) in a reaction, making it a monoprotic acid.
- Phosphonic acid (H3PO3) has 3 acidic hydrogen atoms, meaning it can donate 3 protons, making it a diprotic acid.

3. **Analyze the Statements**:
- If the statement claims that phosphinic acid is monoprotic, it is correct.
- If the statement claims that phosphonic acid is diprotic, it is also correct.

4. **Conclusion**:
- Based on the analysis, the correct statement would be that phosphinic acid (H3PO2) is monoprotic and phosphonic acid (H3PO3) is diprotic.

### Final Answer:
The correct statement is that phosphinic acid (H3PO2) is monoprotic.