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What is the predicted molecular geometry of the H2O molecule according to the VSEPR model?


A) tetrahedral
B) trigonal pyramidal
C) bent
D) square planar
E) seesaw

F) A) and D)
G) C) and E)

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Which one of the following molecules is nonpolar?


A) NH3
B) OF2
C) CH3Cl
D) H2O
E) BeCl2

F) A) and E)
G) B) and E)

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What is the number of lone electron pairs on the central atom of a molecule having a trigonal pyramidal molecular geometry,such as NH3?


A) 1
B) 2
C) 3
D) 0
E) 4

F) C) and D)
G) A) and E)

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Which one of the following molecules is nonpolar?


A) CO2
B) PF3
C) KCl
D) IBr3
E) CHCl3

F) A) and D)
G) A) and E)

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According to the VSEPR model,which molecule is predicted to have a molecular geometry that is trigonal bipyramidal?


A) SF4
B) XeF4
C) NF3
D) SF6
E) PF5

F) A) and E)
G) A) and D)

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Which is the most reasonable prediction for the H-C-H bond angle in CH4?


A) 90°
B) 109.5°
C) 120°
D) 107°
E) 105°

F) B) and C)
G) A) and D)

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According to the VSEPR model,the predicted molecular geometry of ammonia,NH3,is


A) linear.
B) trigonal planar.
C) bent.
D) tetrahedral.
E) trigonal pyramidal.

F) B) and E)
G) B) and D)

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Which of the following is required for the determination of the VSEPR model and the molecular shape?


A) Atomic mass
B) Number of protons
C) Oxidation number
D) Lewis structure
E) None of the answers is correct.

F) B) and C)
G) A) and D)

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___________ is the electron-domain geometry and _________ is the molecular geometry for ammonia.

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Tetrahedra...

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Which is the correct hybrid orbital diagram representing the hybridization of iodine in ICl5?


A) Which is the correct hybrid orbital diagram representing the hybridization of iodine in ICl<sub>5</sub>? A)    B)    C)    D)    E)
B) Which is the correct hybrid orbital diagram representing the hybridization of iodine in ICl<sub>5</sub>? A)    B)    C)    D)    E)
C) Which is the correct hybrid orbital diagram representing the hybridization of iodine in ICl<sub>5</sub>? A)    B)    C)    D)    E)
D) Which is the correct hybrid orbital diagram representing the hybridization of iodine in ICl<sub>5</sub>? A)    B)    C)    D)    E)
E) Which is the correct hybrid orbital diagram representing the hybridization of iodine in ICl<sub>5</sub>? A)    B)    C)    D)    E)

F) None of the above
G) A) and C)

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Consider the species F2+,F2,and F2-.Which of these species will be paramagnetic?


A) F2+,F2,and F2-
B) F2+ and F2
C) F2 and F2-
D) F2+ and F2-
E) None is paramagnetic.

F) None of the above
G) A) and B)

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Indicate the type of hybrid orbitals used by the central atom in PCl3.


A) sp
B) sp2
C) sp3
D) sp3d
E) sp3d2

F) A) and D)
G) A) and C)

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Which figure best illustrates the hybrid orbitals on phosphorous in PH3?


A) Which figure best illustrates the hybrid orbitals on phosphorous in PH<sub>3</sub>? A)    B)    C)    D)    E)
B) Which figure best illustrates the hybrid orbitals on phosphorous in PH<sub>3</sub>? A)    B)    C)    D)    E)
C) Which figure best illustrates the hybrid orbitals on phosphorous in PH<sub>3</sub>? A)    B)    C)    D)    E)
D) Which figure best illustrates the hybrid orbitals on phosphorous in PH<sub>3</sub>? A)    B)    C)    D)    E)
E) Which figure best illustrates the hybrid orbitals on phosphorous in PH<sub>3</sub>? A)    B)    C)    D)    E)

F) A) and E)
G) All of the above

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What name is given to the shape of a molecule with no lone pairs of electrons on the central atom and 6 electron domains on the central atom?

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According to the VSEPR model,is the molecule PF5 polar or nonpolar?

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For a homonuclear diatomic molecule,which molecular orbital is the lowest in energy?


A) For a homonuclear diatomic molecule,which molecular orbital is the lowest in energy? A)    B)    C)    D)    E) All of these orbitals have the same energy.
B) For a homonuclear diatomic molecule,which molecular orbital is the lowest in energy? A)    B)    C)    D)    E) All of these orbitals have the same energy.
C) For a homonuclear diatomic molecule,which molecular orbital is the lowest in energy? A)    B)    C)    D)    E) All of these orbitals have the same energy.
D) For a homonuclear diatomic molecule,which molecular orbital is the lowest in energy? A)    B)    C)    D)    E) All of these orbitals have the same energy.
E) All of these orbitals have the same energy.

F) None of the above
G) B) and E)

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To make an sp3 hybrid orbital,one s atomic orbital is mixed with three p atomic orbitals.

A) True
B) False

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