Download test bank for chemistry the central science 10th edition by brown lemay and bursten

Chemistry, 10e (Brown) Chapter 9, Molecular Geometry and Bonding Theories Instant download Test bank for Chemistry The Central Science 10th Edition by Brown, LeMay, Bursten Test bank for Chemistry The Central Science 10th Edition by Brown, LeMay and Bursten CLICK HERE Multiple-Choice and Bimodal 1) For a molecule with the formula AB2 the molecular shape is A) linear or bent B) linear or trigonal planar C) linear or T-shaped D) T-shaped E) trigonal planar Answer: A Diff: Page Ref: Sec 9.1 2) According to VSEPR theory, if there are five electron domains in the valence shell of an atom, they will be arranged in a(n) geometry A) octahedral B) linear C) tetrahedral D) trigonal planar E) trigonal bipyramidal Answer: E Diff: Page Ref: Sec 9.2 3) According to VSEPR theory, if there are four electron domains in the valence shell of an atom, they will be arranged in a(n) geometry A) octahedral B) linear C) tetrahedral D) trigonal planar E) trigonal bipyramidal Answer: C Diff: Page Ref: Sec 9.2 4) The electron-domain geometry and molecular geometry of iodine trichloride are and , respectively A) trigonal bipyramidal, trigonal planar B) tetrahedral, trigonal pyramidal C) trigonal bipyramidal, T-shaped D) octahedral, trigonal planar E) T-shaped, trigonal planar Answer: C Diff: Page Ref: Sec 9.2 5) The molecular geometry of is square planar A) CCl4 B) XeF4 C) PH3 D) XeF2 E) ICl3 Answer: B Diff: Page Ref: Sec 9.2 6) The molecular geometry of the H3O+ ion is A) linear B) tetrahedral C) bent D) trigonal pyramidal E) octahedral Answer: D Diff: Page Ref: Sec 9.3 7) The molecular geometry of the CS2 molecule is A) linear B) bent C) tetrahedral D) trigonal planar E) T-shaped Answer: A Diff: Page Ref: Sec 9.2 8) The molecular geometry of the SiH Cl2 molecule is A) trigonal planar B) tetrahedral C) trigonal pyramidal D) octahedral E) T-shaped Answer: B Diff: Page Ref: Sec 9.2 9) The molecular geometry of the PHCl2 molecule is A) bent B) trigonal planar C) trigonal pyramidal D) tetrahedral E) T-shaped Answer: C Diff: Page Ref: Sec 9.2 10) The molecular geometry of the CHCl3 molecule is A) bent B) trigonal planar C) trigonal pyramidal D) tetrahedral E) T-shaped Answer: D Diff: Page Ref: Sec 9.2 11) The molecular geometry of the SF2 molecule is A) linear B) bent C) trigonal planar D) tetrahedral E) octahedral Answer: B Diff: Page Ref: Sec 9.2 12) The molecular geometry of the PF2+ ion is A) octahedral B) tetrahedral C) trigonal pyramidal D) trigonal planar E) trigonal bipyramidal Answer: B Diff: Page Ref: Sec 9.2 13) The F–B–F bond angle in the BF2- ion is approximately A) 90° B) 109.5° C) 120° D) 180° E) 60° Answer: C Diff: Page Ref: Sec 9.2 14) The Cl–Si–Cl bond angle in the SiCl2 F2 molecule is approximately A) 90° B) 109.5° C) 120° D) 180° E) 60° Answer: B Diff: Page Ref: Sec 9.2 15) The F–B–F bond angle in the BF3 molecule is A) 90° B) 109.5° C) 120° D) 180° E) 60° Answer: C Diff: Page Ref: Sec 9.2 16) The O–S–O bond angle in SO2 is slightly less than A) 90° B) 109.5° C) 120° D) 180° E) 60° Answer: C Diff: Page Ref: Sec 9.2 17) The F–N–F bond angle in the NF3 molecule is slightly less than A) 90° B) 109.5° C) 120° D) 180° E) 60° Answer: B Diff: Page Ref: Sec 9.2 18) According to valence bond theory, which orbitals on bromine atoms overlap in the formation of the bond in Br2 ? A) 3s B) 3p C) 4s D) 4p E) 3d Answer: D Diff: Page Ref: Sec 9.4 19) The electron-domain geometry of a sulfur-centered compound is trigonal bipyramidal The hybridization of the central nitrogen atom is A) sp B) sp2 C) sp3 D) sp3d E) sp3d2 Answer: D Diff: Page Ref: Sec 9.5 20) The hybridization of orbitals on the central atom in a molecule is sp The electron-domain geometry around this central atom is A) octahedral B) linear C) trigonal planar D) trigonal bipyramidal E) tetrahedral Answer: B Diff: Page Ref: Sec 9.5 21) The hybridization of orbitals on the central atom in a molecule is sp The electron-domain geometry about this central atom is A) octahedral B) linear C) trigonal planar D) trigonal bipyramidal E) tetrahedral Answer: C Diff: Page Ref: Sec 9.5 22) The hybridization of the carbon atom in carbon dioxide is A) sp B) sp2 C) sp3 D) sp3d E) sp3d2 Answer: A Diff: Page Ref: Sec 9.5 23) The hybridization of the central atom in the XeF4 molecule is A) sp B) sp2 C) sp3 D) sp3d E) sp3d2 Answer: E Diff: Page Ref: Sec 9.5 24) The electron-domain geometry of the AsF6 - ion is octahedral The hybrid orbitals used by the As atom for bonding are orbitals A) sp2d2 B) sp3 C) sp3d D) sp3d2 E) sp2 Answer: D Diff: Page Ref: Sec 9.5 25) In order to produce sp3 hybrid orbitals, s atomic orbital(s) and p atomic orbital(s) must be mixed A) one, two B) one, three C) one, one D) two, two E) two, three Answer: B Diff: Page Ref: Sec 9.5 26) The angles between sp2 orbitals are A) 45° B) 180° C) 90° D) 109.5° E) 120° Answer: E Diff: Page Ref: Sec 9.5 27) There are σ and π bonds in the H–C≡C–H molecule A) and B) and C) and D) and E) and Answer: A Diff: Page Ref: Sec 9.6 28) There are σ and π bonds in the H2 C=C=CH2 molecule A) 4, B) 6, C) 2, D) 2, E) 6, Answer: E Diff: Page Ref: Sec 9.6 29) The total number of π bonds in the H–C≡C–C≡C–C≡N molecule is A) B) C) D) E) 12 Answer: C Diff: Page Ref: Sec 9.6 30) There is/are σ bond(s) in the molecule below A) B) C) 12 D) 13 E) 18 Answer: C Diff: Page Ref: Sec 9.6 31) There is/are π bond(s) in the molecule below A) B) C) D) E) 16 Answer: C Diff: Page Ref: Sec 9.6 32) There is/are π bond(s) in the molecule below A) B) C) D) E) Answer: D Diff: Page Ref: Sec 9.6 33) The Lewis structure of carbon monoxide is given below The hybridizations of the carbon and oxygen atoms in carbon monoxide are and , respectively :C≡O: A) sp, sp3 B) sp2 , sp3 C) sp3 , sp2 D) sp, sp E) sp2 , sp2 Answer: D Diff: Page Ref: Sec 9.6 Multiple-Choice 34) The basis of the VSEPR model of molecular bonding is A) regions of electron density on an atom will organize themselves so as to maximize s-character B) regions of electron density in the valence shell of an atom will arrange themselves so as to maximize overlap C) atomic orbitals of the bonding atoms must overlap for a bond to form D) electron domains in the valence shell of an atom will arrange themselves so as to minimize repulsions E) hybrid orbitals will form as necessary to, as closely as possible, achieve spherical symmetry Answer: D Diff: Page Ref: Sec 9.2 35) According to VSEPR theory, if there are three electron domains in the valence shell of an atom, they will be arranged in a(n) geometry A) octahedral B) linear C) tetrahedral D) trigonal planar E) trigonal bipyramidal Answer: D Diff: Page Ref: Sec 9.2 36) In counting the electron domains around the central atom in VSEPR theory, a is not included A) nonbonding pair of electrons B) single covalent bond C) core level electron pair D) double covalent bond E) triple covalent bond Answer: C Diff: Page Ref: Sec 9.2 37) The electron-domain geometry of is tetrahedral A) CBr4 B) PH3 C) CCl2BR2 D) XeF4 E) all of the above except XeF4 Answer: E Diff: Page Ref: Sec 9.2 38) The O–C–O bond angle in the CO32- ion is approximately A) 90° B) 109.5° C) 120° D) 180° E) 60° Answer: C Diff: Page Ref: Sec 9.2 39) The Cl–C–Cl bond angle in the CCl2 O molecule (C is the central atom) is slightly A) greater than 90° B) less than 109.5° C) less than 120° D) greater than 120° E) greater than 109.5° Answer: C Diff: Page Ref: Sec 9.2 40) Of the following species, will have bond angles of 120° A) PH3 B) ClF3 C) NCl3 D) BCl3 E) All of these will have bond angles of 120° Answer: D Diff: Page Ref: Sec 9.2 41) The molecular geometry of the BrO3 - ion is A) trigonal pyramidal B) trigonal planar C) bent D) tetrahedral E) T-shaped Answer: A Diff: Page Ref: Sec 9.2 42) The molecular geometry of the left-most carbon atom in the molecule below is A) trigonal planar B) trigonal bipyramidal C) tetrahedral D) octahedral E) T-shaped Answer: C Diff: Page Ref: Sec 9.2 10 80) The hybrid orbitals used for bonding by the sulfur atom in the SF4 molecule are orbitals A) sp B) sp2 C) sp3 D) sp3d E) sp3d2 Answer: D Diff: Page Ref: Sec 9.5 81) The hybrid orbitals used for bonding by Xe in the unstable XeF2 molecule are orbitals A) sp2 B) sp3 C) sp3d D) sp3d2 E) sp Answer: C Diff: Page Ref: Sec 9.5 82) The hybridization of the oxygen atom labeled y in the structure below is The C–O–H bond angle is A) sp, 180° B) sp2 , 109.5° C) sp3 , 109.5° D) sp3d2 , 90° E) sp, 90° Answer: C Diff: Page Ref: Sec 9.5 83) The electron-domain geometry of the AsF5 molecule is trigonal bipyramidal The hybrid orbitals used by the As atom for bonding are orbitals A) sp2d2 B) sp3 C) sp3d2 D) sp3d E) sp2 Answer: D Diff: Page Ref: Sec 9.5 19 84) hybrid orbitals are used for bonding by Xe in the XeF4 molecule A) sp2 B) sp3 C) sp3d D) sp3d2 E) sp Answer: D Diff: Page Ref: Sec 9.5 Consider the following species when answering the following questions: (i) PCl3 (ii) CCl4 (iii) TeCl4 (iv) XeF4 (v) SF6 85) In which of the molecules does the central atom utilize d orbitals to form hybrid orbitals? A) (i) and (ii) B) (iii) only C) (i) and (v) D) (iii), (iv), and (v) E) (v) only Answer: D Diff: Page Ref: Sec 9.5 86) Which of the molecules has a see-saw shape? A) (i) B) (ii) C) (iii) D) (iv) E) (v) Answer: C Diff: Page Ref: Sec 9.3, 9.5 87) In which of the molecules is the central atom sp3d2 hybridized? A) (i) and (ii) B) (iii) only C) (iii) and (iv) D) (iv) and (v) E) (v) only Answer: D Diff: Page Ref: Sec 9.5 88) There are unhybridized p atomic orbitals in an sp-hybridized carbon atom A) B) C) D) E) Answer: C Diff: Page Ref: Sec 9.5 20 89) When three atomic orbitals are mixed to form hybrid orbitals, how many hybrid orbitals are formed? A) one B) six C) three D) four E) five Answer: C Diff: Page Ref: Sec 9.5 90) The blending of one s atomic orbital and two p atomic orbitals produces A) three sp hybrid orbitals B) two sp2 hybrid orbitals C) three sp3 hybrid orbitals D) two sp3 hybrid orbitals E) three sp2 hybrid orbitals Answer: E Diff: Page Ref: Sec 9.5 91) A triatomic molecule cannot be linear if the hybridization of the central atoms is A) sp B) sp2 C) sp3 D) sp2 or sp3 E) sp2 d or sp3d2 Answer: D Diff: Page Ref: Sec 9.5 92) A typical double bond A) is stronger and shorter than a single bond B) consists of one σ bond and one π bond C) imparts rigidity to a molecule D) consists of two shared electron pairs E) All of the above answers are correct Answer: E Diff: Page Ref: Sec 9.6 93) A typical triple bond A) consists of one σ bond and two π bonds B) consists of three shared electrons C) consists of two σ bonds and one π bond D) consists of six shared electron pairs E) is longer than a single bond Answer: A Diff: Page Ref: Sec 9.6 21 94) In a polyatomic molecule, "localized" bonding electrons are associated with A) one particular atom B) two particular atoms C) all of the atoms in the molecule D) all of the π bonds in the molecule E) two or more σ bonds in the molecule Answer: B Diff: Page Ref: Sec 9.6 95) Which of the following molecules or ions will exhibit delocalized bonding? SO2 SO3 SO32- A) SO2 , SO3 , and SO32B) SO32- only C) SO2 and SO3 D) SO3 and SO32E) None of the above will exhibit delocalized bonding Answer: C Diff: Page Ref: Sec 9.6 96) Which of the following molecules or ions will exhibit delocalized bonding? NO2 - NO4 + N3 - A) NO4 + and N B) NO2 - only C) NO2 - , NO4 + , and N D) N - only E) NO2 - and N Answer: B Diff: Page Ref: Sec 9.6 97) In order to exhibit delocalized π bonding, a molecule must have A) at least two π bonds B) at least two resonance structures C) at least three σ bonds D) at least four atoms E) trigonal planar electron domain geometry Answer: B Diff: Page Ref: Sec 9.6 98) In a typical multiple bond, the σ bond results from overlap of orbitals and the π bond(s) result from overlap of orbitals A) hybrid, atomic B) hybrid, hybrid C) atomic, hybrid D) hybrid, hybrid or atomic E) hybrid or atomic, hybrid or atomic Answer: A Diff: Page Ref: Sec 9.6 22 99) The carbon-carbon σ bond in ethylene, CH2 CH2 , results from the overlap of A) sp hybrid orbitals B) sp3 hybrid orbitals C) sp2 hybrid orbitals D) s atomic orbitals E) p atomic orbitals Answer: C Diff: Page Ref: Sec 9.6 100) The π bond in ethylene, CH2 CH2 , results from the overlap of A) sp3 hybrid orbitals B) s atomic orbitals C) sp hybrid orbitals D) sp2 hybrid orbitals E) p atomic orbitals Answer: E Diff: Page Ref: Sec 9.6 101) In order for rotation to occur about a double bond, A) the σ bond must be broken B) the π bond must be broken C) the bonding must be delocalized D) the bonding must be localized E) the σ and π bonds must both be broken Answer: B Diff: Page Ref: Sec 9.6 102) A typical triple bond consists of A) three sigma bonds B) three pi bonds C) one sigma and two pi bonds D) two sigma and one pi bond E) three ionic bonds Answer: C Diff: Page Ref: Sec 9.6 103) The N–N bond in HNNH consists of A) one σ bond and one π bond B) one σ bond and two π bonds C) two σ bonds and one π bond D) two σ bonds and two π bonds E) one σ bond and no π bonds Answer: A Diff: Page Ref: Sec 9.6 23 104) The hybridization of the terminal carbons in the H2 C=C=CH2 molecule is A) sp B) sp2 C) sp3 D) sp3d E) sp3d2 Answer: B Diff: Page Ref: Sec 9.6 105) The hybridization of nitrogen in the H–C≡N: molecule is A) sp B) s p C) s3 p D) sp2 E) sp3 Answer: A Diff: Page Ref: Sec 9.6 106) The hybridization of the carbon atom labeled x in the molecule below is A) sp B) sp2 C) sp3 D) sp3d E) sp3d2 Answer: B Diff: Page Ref: Sec 9.6 24 107) The hybridization of the oxygen atom labeled x in the structure below is A) sp B) sp2 C) sp3 D) sp3d E) sp3d2 Answer: B Diff: Page Ref: Sec 9.6 108) The Lewis structure of carbon dioxide is given below The hybridization of the carbon atom in carbon dioxide is A) sp3 B) sp2 C) sp D) sp d E) sp2d2 Answer: C Diff: Page Ref: Sec 9.6 109) Electrons in bonds remain localized between two atoms Electrons in bonds can become delocalized between more than two atoms A) pi, sigma B) sigma, pi C) pi, pi D) sigma, sigma E) ionic, sigma Answer: B Diff: Page Ref: Sec 9.6 110) Valence bond theory does not address the issue of A) excited states of molecules B) molecular shape C) covalent bonding D) hybridization E) multiple bonds Answer: A Diff: Page Ref: Sec 9.5 25 111) Structural changes around a double bond in the portion of the rhodopsin molecule trigger the chemical reactions that result in vision A) protein B) opsin C) retinal D) cones E) rods Answer: C Diff: Page Ref: Sec 9.6 112) The bond order of any molecule containing equal numbers of bonding and antibonding electrons is A) B) C) D) E) 1/2 Answer: A Diff: Page Ref: Sec 9.7 113) In molecular orbital theory, the σ1s orbital is and the σ1s* orbital is in the H molecule A) filled, filled B) filled, empty C) filled, half-filled D) half-filled, filled E) empty, filled Answer: B Diff: Page Ref: Sec 9.7 114) Based on molecular orbital theory, the only molecule in the list below that has unpaired electrons is A) C B) N2 C) F2 D) O E) Li Answer: D Diff: Page Ref: Sec 9.8 115) Based on molecular orbital theory, there are unpaired electrons in the OF+ ion A) B) C) D) E) 1/2 Answer: D Diff: Page Ref: Sec 9.8 116) Based on molecular orbital theory, the bond orders of the H–H bonds in H , H + , and H - are , respectively A) 1, 0, and B) 1, 1/2, and 26 C) 1, 0, and 1/2 D) 1, 1/2, and 1/2 E) 1, 2, and Answer: D Diff: Page Ref: Sec 9.7 117) Based on molecular orbital theory, the bond order of the H–H bond in the H + ion is A) B) 1/2 C) D) 3/2 E) Answer: B Diff: Page Ref: Sec 9.7 118) Based on molecular orbital theory, the bond order of the N–N bond in the N2 molecule is A) B) C) D) E) Answer: D Diff: Page Ref: Sec 9.8 119) Based on molecular orbital theory, the bond order of the N–N bond in the N22+ ion is A) B) C) D) E) 1/2 Answer: D Diff: Page Ref: Sec 9.8 120) Based on molecular orbital theory, the bond order of the Be–Be bond in the Be molecule is A) B) C) D) E) Answer: A Diff: Page Ref: Sec 9.8 121) Based on molecular orbital theory, the bond order of the C–C bond in the C molecule is A) B) C) D) E) Answer: C Diff: Page Ref: Sec 9.8 27 122) An antibonding π orbital contains a maximum of electrons A) B) C) D) E) Answer: B Diff: Page Ref: Sec 9.7 123) According to MO theory, overlap of two s atomic orbitals produces A) one bonding molecular orbital and one hybrid orbital B) two bonding molecular orbitals C) two bonding molecular orbitals and two antibonding molecular orbitals D) two bonding molecular orbitals and one antibonding molecular orbital E) one bonding molecular orbital and one antibonding molecular orbital Answer: E Diff: Page Ref: Sec 9.7 124) A molecular orbital can accommodate a maximum of electron(s) A) one B) two C) four D) six E) twelve Answer: B Diff: Page Ref: Sec 9.7 125) Molecular Orbital theory correctly predicts paramagnetism of oxygen gas, O This is because A) the bond order in O can be shown to be equal to B) there are more electrons in the bonding orbitals than in the antibonding orbitals C) the energy of the π 2p MOs is higher than that of the σ 2p MO D) there are two unpaired electrons in the MO electron configuration of O E) the O–O bond distance is relatively short Answer: D Diff: Page Ref: Sec 9.7, 9.8 126) Molecular Orbital theory correctly predicts diamagnetism of fluorine gas, F2 This is because A) the bond order in F2 can be shown to be equal to B) there are more electrons in the bonding orbitals than in the antibonding orbitals C) all electrons in the MO electron configuration of F2 are paired D) the energy of the π 2p MOs is higher than that of the σ 2p MO E) the F–F bond enthalpy is very low Answer: C Diff: Page Ref: Sec 9.7, 9.8 28 127) Of the following, only appears to gain mass in a magnetic field A) C B) N2 C) F2 D) O E) Li Answer: D Diff: Page Ref: Sec 9.8 128) Of the following, appear(s) to gain mass in a magnetic field B2 N2 O2 A) O only B) N2 only C) B and N2 D) N2 and O E) B and O Answer: E Diff: Page Ref: Sec 9.8 129) According to MO theory, overlap of two p atomic orbitals produces A) two bonding molecular orbitals B) one bonding molecular orbital and one antibonding molecular orbital C) two bonding molecular orbitals and two antibonding molecular orbitals D) two bonding molecular orbitals and one antibonding molecular orbital E) three bonding molecular orbitals and three antibonding molecular orbitals Answer: B Diff: Page Ref: Sec 9.8 130) According to MO theory, overlap of two p atomic orbitals produces A) one π MO and one σ* MO B) one π MO and one σ MO C) one π MO and one π* MO or one σ MO and one σ* MO D) one π+ MO and one σ* MO E) two π MOs, two π+ MOs, one σ MO, and one σ* MO Answer: C Diff: Page Ref: Sec 9.8 131) An antibonding MO the corresponding bonding MO A) is always lower in energy than B) can accommodate more electrons than C) can accommodate fewer electrons than D) is always higher in energy than E) is always degenerate with Answer: D Diff: Page Ref: Sec 9.8 29 132) The more effectively two atomic orbitals overlap, A) the more bonding MOs will be produced by the combination B) the higher will be the energy of the resulting bonding MO and the lower will be the energy of the resulting antibonding MO C) the higher will be the energies of both bonding and antibonding MOs that result D) the fewer antibonding MOs will be produced by the combination E) the lower will be the energy of the resulting bonding MO and the higher will be the energy of the resulting antibonding MO Answer: E Diff: Page Ref: Sec 9.8 133) The bond order of a homonuclear diatomic molecule can be decreased by A) removing electrons from a bonding MO or adding electrons to an antibonding MO B) adding electrons to a bonding MO or removing electrons from an antibonding MO C) adding electrons to any MO D) removing electrons from any MO E) The bond order of a homonuclear diatomic molecule cannot be decreased by any means Answer: A Diff: Page Ref: Sec 9.8 134) The order of MO energies in B , C , and N2 (σ2p > π2p ) , is different from the order in O , F2 , and Ne2 (σ2p < π2p ) This is due to A) less effective overlap of p orbitals in O , F2, and Ne2 B) the more metallic character of boron, carbon and nitrogen as compared to oxygen, fluorine, and neon C) greater 2s-2p interaction in O , F2 , and Ne2 D) greater 2s-2p interaction in B , C , and N2 E) less effective overlap of p orbitals in B , C , and N2 Answer: D Diff: Page Ref: Sec 9.8 Short Answer 1) The 1s hydrogen orbital overlaps with the iodine orbital in HI Answer: 5p Diff: Page Ref: Sec 9.5 2) A covalent bond in which overlap regions lie above and below an internuclear axis is called a(n) Answer: π bond Diff: Page Ref: Sec 9.6 3) The sensation of vision results from a nerve impulse that is triggered by the separation of retinal from Answer: opsin Diff: Page Ref: Sec 9.6 4) In molecular orbital theory the stability of a covalent body is related to its Answer: bond order Diff: Page Ref: Sec 9.7 5) Each molecular orbital can accommodate, at most, two electrons with their spins paired This is called the Answer: Pauli principle Diff: Page Ref: Sec 9.8 30 6) The more unpaired electrons in a species, the stronger is the force of magnetic attraction This is called Answer: paramagnetism Diff: Page Ref: Sec 9.8 True/False 1) Possible shapes of AB3 molecules are linear, trigonal planar, and T-shaped Answer: FALSE Diff: Page Ref: Sec 9.1 2) Boron trifluoride has three bonding domains and its electron domain geometry is trigonal planar Answer: TRUE Diff: Page Ref: Sec 9.2 3) Electron domains for single bonds exert greater force on adjacent domains than the electron domains for multiple bonds Answer: FALSE Diff: Page Ref: Sec 9.2 4) The quantitative amount of charge separation in a diatomic molecule contributes t o the dipole moment of that molecule Answer: TRUE Diff: Page Ref: Sec 9.3 5) Hybridization is the process of mixing atomic orbitals as atoms approach each other to form a bond Answer: TRUE Diff: Page Ref: Sec 9.5 6) Electrons in core orbitals contribute to atom bonding Answer: FALSE Diff: Page Ref: Sec 9.6 Algorithmic Questions 1) Using the VSEPR model, the electron-domain geometry of the central atom in BF3 is A) linear B) trigonal planar C) tetrahedral D) trigonal bipyramidal E) octahedral Answer: B Diff: Page Ref: Sec 9.2 2) Using the VSEPR model, the electron-domain geometry of the central atom in SF2 is A) linear B) trigonal planar C) tetrahedral D) trigonal bipyramidal E) octahedral Answer: C Diff: Page Ref: Sec 9.2 31 3) Using the VSEPR model, the electron-domain geometry of the central atom in ClF3 is A) linear B) trigonal planar C) tetrahedral D) trigonal bipyramidal E) octahedral Answer: D Diff: Page Ref: Sec 9.2 4) Using the VSEPR model, the electron-domain geometry of the central atom in BrF4- is A) linear B) trigonal planar C) tetrahedral D) trigonal bipyramidal E) octahedral Answer: E Diff: Page Ref: Sec 9.2 5) Using the VSEPR model, the molecular geometry of the central atom in XeF is A) linear B) trigonal planar C) tetrahedral D) bent E) trigonal pyramidal Answer: A Diff: Page Ref: Sec 9.2 6) Using the VSEPR model, the molecular geometry of the central atom in BCl is A) linear B) trigonal planar C) tetrahedral D) bent E) trigonal pyramidal Answer: B Diff: Page Ref: Sec 9.2 7) Using the VSEPR model, the molecular geometry of the central atom in CF4 is A) linear B) trigonal planar C) tetrahedral D) bent E) trigonal pyramidal Answer: C Diff: Page Ref: Sec 9.2 8) Using the VSEPR model, the molecular geometry of the central atom in SO is A) linear B) trigonal planar C) tetrahedral D) bent E) trigonal pyramidal Answer: D Diff: Page Ref: Sec 9.2 32 9) Using the VSEPR model, the molecular geometry of the central atom in NCl is A) linear B) trigonal planar C) tetrahedral D) bent E) trigonal pyramidal Answer: E Diff: Page Ref: Sec 9.2 10) Using the VSEPR model, the molecular geometry of the central atom in PF is A) tetrahedral B) square planar C) trigonal bipyramidal D) seesaw E) square pyramidal Answer: C Diff: Page Ref: Sec 9.2 11) The hybrid orbital set used by the central atom in NO 3- is A) sp B) sp2 C) sp3 D) sp3d E) sp3d2 Answer: B Diff: Page Ref: Sec 9.5 12) The hybrid orbital set used by the central atom in BF4- is A) sp B) sp2 C) sp3 D) sp3d E) sp3d2 Answer: C Diff: Page Ref: Sec 9.5 13) The hybrid orbital set used by the central atom in KrF2 is A) sp B) sp2 C) sp3 D) sp3d E) sp3d2 Answer: D Diff: Page Ref: Sec 9.5 33