ZnO compound has strong tendency to absorb CO2 ​

Explanation

To solve the question regarding why ZnO (zinc oxide) has a strong tendency to absorb CO2 (carbon dioxide), we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Nature of ZnO**:
- ZnO is classified as an amphoteric oxide. This means it can react both as an acid and as a base depending on the nature of the reacting species.

2. **Identify the Nature of CO2**:
- CO2 is known to be an acidic oxide. Acidic oxides are those that can react with bases to form salts and water.

3. **Reaction Between ZnO and CO2**:
- Since ZnO is amphoteric and can act as a base, it can react with the acidic CO2. The reaction can be represented as:
\[ \text{ZnO} + \text{CO}_2 \rightarrow \text{ZnCO}_3 \]
- In this reaction, zinc oxide (ZnO) reacts with carbon dioxide (CO2) to form zinc carbonate (ZnCO3).

4. **Conclusion**:
- The strong tendency of ZnO to absorb CO2 can be attributed to its amphoteric nature, allowing it to react with the acidic CO2 to form a stable compound, zinc carbonate (ZnCO3).

### Final Answer:
ZnO has a strong tendency to absorb CO2 because it is an amphoteric oxide that can react with the acidic CO2 to form zinc carbonate (ZnCO3).

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