To solve the question regarding the correct match of compounds and their nature, we need to analyze each option provided in the question. Let's break it down step by step.
### Step 1: Analyze Option 1 - BOH3
- **Structure**: BOH3 has three hydroxyl (OH) groups attached to boron.
- **Nature**: Boron has only 6 electrons in its valence shell, making it electron deficient. It tends to accept electrons rather than donate them.
- **Conclusion**: Since it accepts electrons, BOH3 is acidic, not basic. Therefore, Option 1 is incorrect.
### Step 2: Analyze Option 2 - SnO and PbO
- **SnO**:
- **Reaction with Acid**: SnO reacts with HCl to form SnCl2 + H2O, showing basic behavior.
- **Reaction with Base**: SnO reacts with NaOH to form Na2SnO2 + H2O, showing acidic behavior.
- **Conclusion**: SnO is amphoteric since it can react with both acids and bases.
- **PbO**:
- **Reaction with Acid**: PbO reacts with HCl to form PbCl2 + H2O, showing basic behavior.
- **Reaction with Base**: PbO reacts with NaOH in the presence of water to form a complex, showing acidic behavior.
- **Conclusion**: PbO is also amphoteric.
- **Overall Conclusion**: Since both SnO and PbO exhibit amphoteric behavior, Option 2 is correct.
### Step 3: Analyze Option 3 - GeO2
- **Nature**: GeO2 is expected to be basic due to its structure, but it has a significant amount of electron deficiency because of the electronegative oxygen.
- **Conclusion**: GeO2 can also act as an acid, thus contradicting the claim that it is only basic. Therefore, Option 3 is incorrect.
### Step 4: Analyze Option 4 - PbO2
- **Nature**: PbO2 is said to be only acidic.
- **Reaction with Acid**: When PbO2 reacts with HCl, it forms PbCl2 + H2O, indicating basic behavior.
- **Conclusion**: PbO2 is not only acidic; it can also show basic properties, making Option 4 incorrect.
### Final Conclusion
The correct match is found in Option 2, where both SnO and PbO are amphoteric.
### Summary of the Solution
- **Option 1**: Incorrect (BOH3 is acidic)
- **Option 2**: Correct (SnO and PbO are amphoteric)
- **Option 3**: Incorrect (GeO2 is not only basic)
- **Option 4**: Incorrect (PbO2 is amphoteric, not only acidic)
Thus, the answer is **Option 2**.
---
