VSEPR theory (Valence Shell Electron Pair Repulsion theory) is used to predict the geometry of molecules. - Molecular geometry depends on the number of bonding pairs and lone pairs of electrons around the central atom. Common geometries: - Trigonal planar (3 bonding pairs, 0 lone pairs) - Tetrahedral (4 bonding pairs, 0 lone pairs) - Trigonal bipyramidal (5 bonding pairs, 0 lone pairs) - Octahedral (6 bonding pairs, 0 lone pairs)
In Column - I Geometric orientation of some compounds are given and in Column - II some examples are given. Match Column - I with the appropriate match with Column - II. Column - I (Geometric orientation) (i) Trigonal planar (ii) Tetrahedral (iii) Trigonal bipyramidal (iv) Octahedral Column - II (Example) (A) SF₆ (B) PCl₅ (C) CH₄ (D) BF₃ Correct code is - (1) i - C, ii - D, iii - A, iv - B (2) i - A, ii - B, iii - C, iv - D (3) i - B, ii - A, iii - D, iv - C (4) i - D, ii - C, iii - B, iv - A (5) Question not attempted
Asked in Department Recruitment 2024 (Chemist) 2024 · Topic: Inorganic Chemistry (Chemical Bonding and Molecular Structure)
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