Chemistry · Quantum mechanical approach to covalent bonding: Valence bond theory its important features, the concept of hybridization involving s, p and d orbitals, resonance
Assertion exists but does not exist. Reason orbital in -atom takes part in chemi
Assertion \( P C l_{4} \) exists but \( N C l_{5} \) does not exist. Reason \( d- \) orbital in \( P \) -atom takes part in chemical bonding, this lacks in \( N- \) atom.
- A. Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
- B. Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
- C. Assertion is correct but Reason is incorrect
- D. Assertion is incorrect but Reason is correct
Step-by-step solution
Phosphorus has vacant 3d orbitals allowing sp3d hybridization to form PCl5, which is stable. Nitrogen lacks d-orbitals and cannot expand its octet, so NCl5 does not exist. Thus, the reason correctly explains the assertion.
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