Home › NEET UG › Chemistry › Chemical Bonding and Molecular Structure › A sigma (σ) bond is formed by:
A sigma (σ) bond is formed by:
ASidewise overlap of p orbitals
BOverlap of s orbitals only
CEnd-to-end (head-on, axial) overlap of orbitals along the internuclear axis
DOverlap of d orbitals only
Answer & Solution
Correct answer: C. End-to-end (head-on, axial) overlap of orbitals along the internuclear axis
A σ bond is formed by **head-on (axial) overlap** along the internuclear axis. It can result from s–s, s–p or p–p (axial) combinations. Sidewise p–p overlap gives π bonds.
Related questions
Among the following, the molecule with a zero dipole moment despite polar bonds is:In a coordinate (dative) bond, the shared pair of electrons:The shape of SF₆ is:Which of the following diatomic species is paramagnetic in its ground state?Among N₂, O₂, F₂ and Ne₂, the molecule with the highest bond order is:Bond order in molecular orbital theory is defined as:A hydrogen bond is best described as the attraction between H attached to a highly electroThe maximum number of bonds an oxygen atom can normally form is: