Which of the following statements is wrong

Options

A. Catalysts can aid a rapid reaching of the equilibrium position, but do not change the position of the equilibrium
B. Homogenous catalyst generally involves an equilibrium reaction between atleast one of the reactants and the catalyst
C. Heterogeneous catalysis involves chemisorption on the surface of the catalyst
D. Positive catalyst raise the energy of activation of the reaction they catalyse

Explanation

To determine which of the given statements is wrong, we will analyze each statement one by one.

### Step-by-Step Solution:

1. **Statement 1**: "Catalysts aid rapid reaching of equilibrium position but do not change the position of equilibrium."
- **Analysis**: This statement is true. Catalysts speed up the rate at which equilibrium is reached but do not affect the position of the equilibrium itself.

2. **Statement 2**: "Homogeneous catalysts generally involve an equilibrium reaction between at least one of the reactants and the catalyst."
- **Analysis**: This statement is also true. In homogeneous catalysis, the catalyst and the reactants are in the same phase, and there is typically an equilibrium established between them.

3. **Statement 3**: "Heterogeneous catalysts are involved in chemisorption on the surface of the catalyst."
- **Analysis**: This statement is correct. Heterogeneous catalysts operate on the surface and involve chemisorption, where reactants are adsorbed onto the catalyst's surface.

4. **Statement 4**: "Positive catalysts raise the activation energy of the reaction they catalyze."
- **Analysis**: This statement is false. Positive catalysts actually lower the activation energy of a reaction, which increases the rate of the reaction. Therefore, this statement is incorrect.

5. **Conclusion**: The wrong statement is: "Positive catalysts raise the activation energy of the reaction they catalyze."

### Final Answer:
The wrong statement is: "Positive catalysts raise the activation energy of the reaction they catalyze."

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