Among the following highest bond energy is for

Options

A. H- H
B. C - H
C. C - C
D. F - F

Answer

To determine which bond has the highest bond energy among the given options (Hydrogen-Hydrogen, Carbon-Hydrogen, Carbon-Carbon, and Fluorine-Fluorine), we can analyze the bond strengths of each:

### Step-by-Step Solution:

1. **Identify the Bonds**:
- We have four types of bonds to compare:
- Hydrogen-Hydrogen (H-H)
- Carbon-Hydrogen (C-H)
- Carbon-Carbon (C-C)
- Fluorine-Fluorine (F-F)

2. **Understand Bond Energies**:
- Bond energy is the amount of energy required to break a bond between two atoms. Higher bond energy indicates a stronger bond.

3. **Analyze Each Bond**:
- **H-H Bond**: The bond energy for the H-H bond is approximately 436 kJ/mol. This bond is strong due to the small size of hydrogen atoms, which allows for effective overlap of their orbitals.

- **C-H Bond**: The bond energy for the C-H bond is around 413 kJ/mol. This bond is also strong but slightly weaker than the H-H bond.

- **C-C Bond**: The bond energy for the C-C bond is approximately 348 kJ/mol. This bond is weaker than both the H-H and C-H bonds due to less effective overlap of orbitals.

- **F-F Bond**: The bond energy for the F-F bond is relatively weak, around 158 kJ/mol. This is primarily due to the high electronegativity of fluorine and the presence of lone pairs that cause repulsion, making the bond less stable.

4. **Compare the Bond Energies**:
- H-H: 436 kJ/mol
- C-H: 413 kJ/mol
- C-C: 348 kJ/mol
- F-F: 158 kJ/mol

5. **Conclusion**:
- Among the bonds listed, the Hydrogen-Hydrogen (H-H) bond has the highest bond energy of 436 kJ/mol, making it the strongest bond among the options provided.

### Final Answer:
The bond with the highest energy is the **Hydrogen-Hydrogen (H-H) bond**.

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