Valence bond theory

Chlorine atoms in chlorine molecules is bonded by ionic bond.

Hydrogen atoms in hydrogen molecules is bonded by ionic bond.

Explain the formation of the chlorine molecule according to the Valence Bond Theory.

In the formation of a chlorine molecule, $3{\mathrm{p}}_{\mathrm{z}}$ orbital of one chlorine molecule overlaps with the $3{\mathrm{p}}_{\mathrm{z}}$ orbital of another chlorine atom.

Explain the formation of the hydrogen molecule according to the Valence Bond Theory.

In the formation of hydrogen molecule, $1\mathrm{s}$ orbital of one hydrogen molecule overlaps with the $1\mathrm{s}$ orbital of other hydrogen atom.

Explain formation of nitrogen molecule.

The number of bonds present in ${\mathrm{N}}_2$ molecule is

Propyne molecule contains $6$ sigma and _____ pi bonds.

Number and type of bonds between two carbon atoms in CaC2 are

The number of $\mathrm{\sigma }$ and $\mathrm{\pi }$ bonds in allyl isocyanide are

Propyne molecule contains:

Which of the following statements is not correct?