the process whichh is catalysed by one of the product is called

Options

A. acid - base catalysis
B. autocatalysis
C. negative catayst
D. homogeneous catalysis

Answer

**Step-by-Step Solution:**

1. **Understanding the Definition**: The question asks for the term used to describe a process that is catalyzed by one of the products of the reaction. This is a specific type of catalysis where the product itself increases the rate of the reaction.

2. **Identifying the Term**: The term that describes this process is "autocatalysis." In autocatalysis, one of the products of the reaction acts as a catalyst for that same reaction.

3. **Example of Autocatalysis**: A common example of autocatalysis is the hydrolysis of esters. In this reaction, an ester reacts with water to produce an acid (like acetic acid) and an alcohol. The acetic acid produced can act as a catalyst for the reaction, thus speeding up the hydrolysis process.

4. **Understanding the Mechanism**: In the case of ester hydrolysis, as the reaction proceeds, the concentration of acetic acid increases, which in turn increases the rate of the reaction. This self-catalyzing effect is what characterizes autocatalysis.

5. **Distinguishing from Other Types of Catalysis**: It's important to differentiate autocatalysis from other types of catalysis:
- **Negative Catalyst**: This is a substance that decreases the rate of a reaction.
- **Homogeneous Catalysis**: This occurs when the catalyst and the reactants are in the same phase (e.g., all gases or all liquids).

6. **Conclusion**: Therefore, the process which is catalyzed by one of the products is called "autocatalysis."

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