key4(2) - CHEM 1211K Test IV MULTIPLE CHOICE. (3 points...

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CHEM 1211K Test IV MULTIPLE CHOICE. (3 points each) 1) The hybridization of orbitals on the central atom in a molecule is sp 2 . The electron-domain geometry about this central atom is ________. A) trigonal bipyramidal B) trigonal planar C) octahedral D) linear E) tetrahedral 2) Of the following, the central atom is sp 3 d 2 hybridized only in __________. A) BeF 2 B) XeF 4 C) PCl 5 D) Br 3 - E) PH 3 3) A typical triple bond __________. A) consists of three shared electrons B) is longer than a single bond C) consists of two sigma bonds and one pi bond D) consists of six shared electron pairs E) consists of one sigma bond and two pi bonds 4) 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) one bonding molecular orbital and one antibonding molecular orbital D) two bonding molecular orbitals and two antibonding molecular orbitals E) two bonding molecular orbitals and one antibonding molecular orbital 5) An antibonding MO __________ the corresponding bonding MO. A) can accommodate fewer electrons than B) is always lower in energy than C) is always degenerate with D) is always higher in energy than E) can accommodate more electrons than 6) Which of the following statements about gases is false? A) Gases are highly compressible. B) All gases are colorless and odorless at room temperature. C) Non-reacting gas mixtures are homogeneous. D) Gases expand spontaneously to fill the container they are placed in. E) Distances between molecules of gas are very large compared to bond distances within molecules. 7) Of the following, __________ is a correct statement of Boyle's law. A) PV = constant B) n/P = constant C) P/V = constant D) V/P = constant E) V/T = constant 8) A sample of a gas (5.0 mol) at 1.0 atm is expanded at constant temperature from 10 L to 15 L. The final pressure is __________ atm. A) 0.67
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key4(2) - CHEM 1211K Test IV MULTIPLE CHOICE. (3 points...

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