Question

'Sigma bond' is formed by

• A. end-end overlap
• B. head-on overlap
• C. Both (1) and (2)
• D. lateral overlap

Answer 1

The Correct Option is C

A sigma (σ) bond is the strongest type of covalent bond and is formed by the direct overlapping of orbitals along the internuclear axis. This overlap can occur in two ways:

End-to-end overlap (also called linear overlap)
Head-on overlap (essentially the same concept as end-to-end, just a different description)

Thus, both descriptions (1) and (2) refer to the same fundamental bonding mechanism that forms sigma bonds.

The correct option is (C): Both (1) and (2)