Final answer:
The valence bond theory does not require the use of hybrid orbitals to explain the bonding in diatomic molecules like HCl.
Step-by-step explanation:
False.
The valence bond theory is introduced to describe bonding in covalent molecules. In this model, bonds are considered to form from the overlapping of two atomic orbitals on different atoms, each orbital containing a single electron. The valence bond theory does not require the use of hybrid orbitals to explain the bonding in diatomic molecules like HCl. Hybrid orbitals are introduced to explain the bonding in organic molecules, not diatomic molecules.