An unstable state where a bond may be formed or bond may be broken is called

Options

A. Transition state
B. Initial state
C. Final state
D. None of the above

Answer

To answer the question, "An unstable state where a bond may be formed or bond may be broken is called," we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Chemical Reactions**: In chemical reactions, molecules undergo changes where bonds are formed and broken. This process involves different stages.

2. **Identifying the Stages of a Chemical Reaction**: There are typically three main stages in a chemical reaction:
- **Initial State (Reactants/Substrates)**: This is where the reactants are present before any reaction occurs.
- **Transition State**: This is the unstable state where the reactants are in the process of being converted into products. In this state, bonds may be formed or broken, making it a high-energy and unstable configuration.
- **Final State (Products)**: This is where the products of the reaction are formed after the transition state.

3. **Defining the Transition State**: The transition state is characterized by its instability. It represents a point of maximum energy along the reaction pathway, where the old bonds are breaking, and new bonds are forming.

4. **Conclusion**: Therefore, the answer to the question is that the unstable state where a bond may be formed or broken is called the **Transition State**.

### Final Answer:
The unstable state where a bond may be formed or broken is called the **Transition State**.

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