The shortest C – C bond distance is found in:

🔑 Concept
🔗 Bond Type and Bond Length
→ When there exists a single bond between two atoms, there is only a sigma bond.
→ When there are multiple bonds between atoms, there is one sigma bond and the others are pi bonds.
→ Bond length is the distance between the nucleus of two atoms in a bond.
→ When multiple bonds exist between two atoms, the nuclei come closer due to greater overlaps.
→ As a result, the distance between them shortens, and the bond length decreases.
→ The C-C bond length follows a specific order.