The central atom which may not follow the octet rule while forming covalent bond :
Correct answer: C. P
- A. C
- B. O
- C. P
- D. F
Explanation
Phosphorus, being in the third period of the periodic table, has access to d orbitals in addition to the s and p orbitals. This allows phosphorus to accommodate more than eight electrons in its valence shell. In some compounds, such as phosphorus pentachloride (PCl5) or phosphorus hexafluoride (PF6), phosphorus can form additional bonds beyond the octet, resulting in an expanded octet. In these cases, phosphorus can have ten or even twelve electrons around it.
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Chemical bonding explains molecular shape through VSEPR theory and distinguishes sigma bonds from pi bonds. Questions involve hybridization, bond angles, dipole moment and bond energy, including how electron-pair repulsion determines geometry and how bond polarity differs from the overall polarity of a molecule.
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