Test: Valence Bond Theory (NCERT) - NEET MCQ

Ionic bonds are non-directional while covalent bonds are directional

Formation of π-bond shortens the distancebetween the two concerned atoms

Ionic bond is possible between similar anddissimilar atoms

Linear overlapping of atomic p-orbitals leads to a sigma bond

s-orbital and s-orbital

s-orbital and p_z-orbital

p_z-orbital and p_z-orbital

p_x- orbital and p_x - orbital

Two end to end and one sidewise overlap

Two sidewise and one end to end overlap

Three sidewise overlaps

Three end to end overlaps

One axial s-s overlap and one p-p axial overlap

Two p-p axial overlaps

Two p-p sidewise overlaps

One p-p axial and one p-p sidewise overlap

(i), when the bond is formed, the energy is minimum

(ii), when the atoms touch each other, the energy is zero

(iil), when the atoms areisolated, theenergy is minimum

(ii), when the attractive forces are more than repulsive forces