Which of the following is an example of heterogeneous catalysis reaction?

Options

A. `2SO_(3)(g) + O_(2)(g) overset(NO(g))(rarr) 2SO_(3)(g)`
B. Hydorlysis of aqueous sucrose solution in the presence of aqueous mineral acid
C. `CH_(3)COOCH_(3)(l) + H_(2)O(l) overset(HCl(l))(rarr)CH_(2)COOH(l)+CH_(2)OH(l)`
D. `CO(g)+2H_(2)(g) overset(Cu,ZnO-Cr_(2)O_(3)(s))(rarr)CH_(3)OH(l)`

Answer

To determine which of the following is an example of a heterogeneous catalysis reaction, we first need to understand what heterogeneous catalysis is.

### Step-by-Step Solution:

1. **Definition of Heterogeneous Catalysis**:
Heterogeneous catalysis occurs when the reactants and the catalyst are in different phases (states of matter). For example, if the reactants are gases and the catalyst is a solid, or if the reactants are liquids and the catalyst is a gas or solid, it is considered heterogeneous.

2. **Analyze Each Option**:
- **Option 1**: \( 2 \text{SO}_2 (g) + \text{O}_2 (g) \) with catalyst \( \text{NO} (g) \) producing \( 2 \text{SO}_3 (g) \).
- All species (reactants and catalyst) are in the gaseous state. This is homogeneous catalysis.

- **Option 2**: Hydrolysis of aqueous sucrose solution \( \text{C}_{12}\text{H}_{22}\text{O}_{11} (aq) + \text{H}_2\text{O} (aq) \) with catalyst \( \text{H}_2\text{SO}_4 (aq) \) producing \( \text{C}_6\text{H}_{12}\text{O}_6 (aq) + \text{C}_6\text{H}_{12}\text{O}_6 (aq) \).
- All species are in the aqueous state. This is also homogeneous catalysis.

- **Option 3**: \( \text{CH}_3\text{COOCH}_3 (l) + \text{H}_2\text{O} (l) \) with catalyst \( \text{HCl} (l) \) producing \( \text{CH}_3\text{COOH} (l) + \text{CH}_3\text{OH} (l) \).
- All species are in the liquid state. This is again homogeneous catalysis.

- **Option 4**: \( \text{CO} (g) + 2 \text{H}_2 (g) \) with catalyst \( \text{Cu}, \text{ZnO}, \text{Cr}_2\text{O}_3 (s) \) producing \( \text{CH}_3\text{OH} (l) \).
- Here, the reactants are in the gaseous state, the catalyst is in the solid state, and the product is in the liquid state. This is an example of heterogeneous catalysis.

3. **Conclusion**:
Based on the analysis, the fourth option is the only example of heterogeneous catalysis.

### Final Answer:
The example of a heterogeneous catalysis reaction is **Option 4**: \( \text{CO} (g) + 2 \text{H}_2 (g) \) with catalyst \( \text{Cu}, \text{ZnO}, \text{Cr}_2\text{O}_3 (s) \) producing \( \text{CH}_3\text{OH} (l) \).