QQuestionAnatomy and Physiology
QuestionAnatomy and Physiology
Predict the molecular structure and give the approximate bond angles of the PCl^3 molecule.
A. Linear, 180°
B. Trigonal planar, 120°
C. Tetrahedral, 109.5°
D. Bent, around 107°
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Answer
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Step 1Let's solve this step by step using VSEPR (Valence Shell Electron Pair Repulsion) theory:
Step 2: Determine the central atom
- The central atom is phosphorus (P) - Chlorine (Cl) atoms are bonded to the phosphorus
Final Answer
Bent, around 107° Key Reasoning: - Lone pair repels bonding pairs - Causes slight deviation from perfect tetrahedral angle of 109.5° - Results in a bent molecular geometry with compressed bond angles
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