Chemistry · Covalent Bonding: Concept of electronegativity, Fajan's rule, dipole moment, Valence Shell Electron Pair Repulsion (VSEPR) theory and shapes of simple molecules
Boron can not form more than 4 bonds because: This question has multiple correct
Boron can not form more than 4 bonds because: This question has multiple correct options
- A. of unavailability of d-orbitals
- B. of unavailabilty of empty p-orbitals
- C. Boron is so smaller
- D. it does not have more valence electrons
Step-by-step solution
Boron has only 3 valence electrons and can form at most 4 bonds by accepting a lone pair (coordinate bond), but it cannot exceed 4 because it lacks d-orbitals to accommodate more than 8 electrons in its valence shell. Option A directly addresses this limitation. Option B is false as boron has an empty p-orbital. Option C (size) is not the direct reason. Option D is true but not the primary reason since it can form 4 bonds despite having 3 valence electrons.