NEET 2026 (Phase 1) · ChemistryVSEPR shapePrevious Year Question
Identify the incorrect statement related to \ce{PCl5} from the following:
- A.Three equatorial P–Cl bonds make an angle of $120^\circ$ with each other
- B.Two axial P–Cl bonds make an angle of $180^\circ$ with each other
- C.Axial P–Cl bonds are longer than equatorial P–Cl bonds
- D.\ce{PCl5} molecule is non-reactive✓
Correct Answer
(D) \ce{PCl5} molecule is non-reactive
Solution & Explanation
\textbf{Answer:} (D) \ce{PCl5} molecule is non-reactive \textbf{Solution:} \ce{PCl5} is trigonal bipyramidal ($sp^3d$). The statements about the $120^\circ$ equatorial angle, $180^\circ$ axial angle, and longer axial bonds (greater repulsion) are all correct. \ce{PCl5} is reactive (e.g. it hydrolyses and acts as a chlorinating agent), so 'non-reactive' is the incorrect statement.
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