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3. VALENCE SHELL ELECTRON PAIR REPULSION THEORY | (VSEPR) Questions with TWO marks 1) Among SF4, BF,, XeF, and (Cl, the number of species having two lone pair of electrons on the central atom according to VSEPR theory is [June 2011] (a) 2 (b) 3 (c)4 (d)0 2) In the molecules H,O, NH; and CH,. [June 2011] (a) The bond angles are same (b) The bond distances are same. (c) The hybridizations are same (d) The shapes are same. 3) The total number of lone pairs of electrons in I; is [June 2012] (a) Zero (b) Three (c) Six (d) Nine 4) Which ones among CO;"", SOs, XeO3 and NOs" have planar structure? [Dec 2012] (a) CO3*", SO3 and XeQs, (b) SO3, XeO3, and NOs" (c) CO”, XeOs, and NOs” (d) CO;*", SOs, and NO; 5) The number of lone-pairs are identical in the pairs . [June 2073] (a) XeFs, CIF; (b) XeOx, (Clq (c) XeOoFa, ICL” (d) XeO,, CIFy 6) According to VSEPR theory, the geometry (with lone pair) around the central iodine in 3° and Is fons respectively are 7 [Dec 2013] {a) tetrahedral and tetrahedal (b) trigonal bipyramidal and trigonal bipyramidal (c) tetrahedral and trigonal bipyramidal {d) tetrahedral and octahedral 7) The structure of SbPh; and PPhs respectively are [June 2014] {a) trigonal bipyramidal , square pyramidal (b) square pyramidal , trigonal bipyramidal (c) trigonal bipyramidal , trigonal bipyramidal (d) square pyramidal , square pyramidal 8) The correct non-linear and iso-structural pair is [June 2014] {a) SCla, Is” {b) SCl, I3° (c) SCh, CIF” (0) Is’, CIES Questions with FOUR marks 9) According to VSEPR theory, the molecule/ion having ideal tetrahedral shape is [June 2071] (a) SF, {b) SO," {c) S2Cle (d) SO2Cl, 10) The molecule with highest number of lone-pairs and has a linear shape based on VSEPR theory is [June 2071] (a) CO2 (b) Is” (c) NO; (d) NO;* Scanned by CamScanner 
