Similar character between enzymes and inorganic catalysts is

Options

A. 1)Catalyse a reaction without undergoing any change
B. 2)Protein nature
C. 3)Sensitive to high temperature and pressure
D. 4)All the above

Answer

To answer the question regarding the similarities between enzymes and inorganic catalysts, we can break down the solution step by step:

### Step-by-Step Solution:

1. **Understanding Enzymes and Inorganic Catalysts**:
- Enzymes are biological catalysts that speed up chemical reactions in living organisms. They are typically proteins.
- Inorganic catalysts are non-biological substances that also accelerate chemical reactions but are not composed of proteins.

2. **Identifying Similar Characteristics**:
- Both enzymes and inorganic catalysts share some common characteristics:
- **Unchanged After Reaction**: Both types of catalysts facilitate reactions without undergoing any permanent change themselves. This means they can be reused multiple times.
- **Required in Minute Quantities**: Both enzymes and inorganic catalysts are effective in very small amounts compared to the substrates they act upon.
- **Do Not Alter Equilibrium**: Neither type of catalyst alters the equilibrium position of a reversible reaction; they only speed up the rate at which equilibrium is reached.
- **Do Not Initiate Reactions**: Catalysts do not initiate reactions; they only lower the activation energy required for the reaction to proceed.

3. **Analyzing the Options**:
- **Option 1**: Catalyze a reaction without undergoing any change. (This is true for both enzymes and inorganic catalysts.)
- **Option 2**: Protein nature. (This is only true for enzymes, not inorganic catalysts.)
- **Option 3**: Sensitive to high temperature and pressure. (Enzymes are sensitive to high temperatures, while inorganic catalysts can often withstand higher temperatures.)
- **Option 4**: All of the above. (Since options 2 and 3 are not true for both, this option is incorrect.)

4. **Conclusion**:
- The correct answer is **Option 1**: "Catalyze a reaction without undergoing any change" as this is the only characteristic that is similar between enzymes and inorganic catalysts.