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Consider the following general wedge-and-dash diagrams. Consider the following general wedge-and-dash diagrams. i.ii.iii.Each consists of a central atom bonded to 2 or 4 terminal atoms that are identical to one another.The central atom is different from the terminal atoms.Which of these molecules is/are polar? A) i only B) ii only C) iii only D) ii and iii E) i, ii, and iii Consider the following general wedge-and-dash diagrams. i.ii.iii.Each consists of a central atom bonded to 2 or 4 terminal atoms that are identical to one another.The central atom is different from the terminal atoms.Which of these molecules is/are polar? A) i only B) ii only C) iii only D) ii and iii E) i, ii, and iii Consider the following general wedge-and-dash diagrams. i.ii.iii.Each consists of a central atom bonded to 2 or 4 terminal atoms that are identical to one another.The central atom is different from the terminal atoms.Which of these molecules is/are polar? A) i only B) ii only C) iii only D) ii and iii E) i, ii, and iii i.ii.iii.Each consists of a central atom bonded to 2 or 4 terminal atoms that are identical to one another.The central atom is different from the terminal atoms.Which of these molecules is/are polar?


A) i only
B) ii only
C) iii only
D) ii and iii
E) i, ii, and iii

Correct Answer

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Which of the following is the best Lewis diagram for NO2-?


A) Which of the following is the best Lewis diagram for NO<sub>2</sub><sup>-</sup>? A) B) C) D) E)
B) Which of the following is the best Lewis diagram for NO<sub>2</sub><sup>-</sup>? A) B) C) D) E)
C) Which of the following is the best Lewis diagram for NO<sub>2</sub><sup>-</sup>? A) B) C) D) E)
D) Which of the following is the best Lewis diagram for NO<sub>2</sub><sup>-</sup>? A) B) C) D) E)
E) Which of the following is the best Lewis diagram for NO<sub>2</sub><sup>-</sup>? A) B) C) D) E)

Correct Answer

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What is the electron pair geometry surrounding the boron atom in BH3?


A) Trigonal planar
B) Linear
C) Angular (Bent)
D) Trigonal pyramid
E) Tetrahedral

Correct Answer

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What is the molecular geometry surrounding the carbon atom in CH4?


A) Tetrahedral
B) Angular (bent)
C) Trigonal pyramid
D) Linear
E) Trigonal planar

Correct Answer

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Which of the following compounds is a carboxylic acid?


A) C2H5OC2H5
B) CH3CH2CH2OH
C) HCOOH
D) CH2Cl2
E) None is a carboxylic acid.

Correct Answer

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Which of the following statements is/are correct? i.A molecule is nonpolar if it contains only nonpolar bonds ii.A polar molecule is one in which there is an asymmetrical distribution of charge. iii.If the central atom in a molecule has no lone pairs and all the atoms bonded to it are identical,the molecule is nonpolar.


A) i only
B) ii only
C) iii only
D) i and iii
E) All statements are correct

Correct Answer

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Consider the following general wedge-and-dash diagram: Consider the following general wedge-and-dash diagram: Which of the following has this structure? A) BF<sub>3</sub> B) CH<sub>2</sub>O C) AlCl<sub>3</sub> D) COCl<sub>2</sub> E) PH<sub>3</sub> Which of the following has this structure?


A) BF3
B) CH2O
C) AlCl3
D) COCl2
E) PH3

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Consider the following general wedge-and-dash diagram: Consider the following general wedge-and-dash diagram: What is the molecular geometry around the central atom of this molecule? A) Linear B) Tetrahedral C) Trigonal planar D) Bent E) Trigonal pyramidal What is the molecular geometry around the central atom of this molecule?


A) Linear
B) Tetrahedral
C) Trigonal planar
D) Bent
E) Trigonal pyramidal

Correct Answer

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Which of the following wedge-and-dash diagrams best illustrates the molecular geometry of C2H6?


A) Which of the following wedge-and-dash diagrams best illustrates the molecular geometry of C<sub>2</sub>H<sub>6</sub>? A) B) C) D) E)
B) Which of the following wedge-and-dash diagrams best illustrates the molecular geometry of C<sub>2</sub>H<sub>6</sub>? A) B) C) D) E)
C) Which of the following wedge-and-dash diagrams best illustrates the molecular geometry of C<sub>2</sub>H<sub>6</sub>? A) B) C) D) E)
D) Which of the following wedge-and-dash diagrams best illustrates the molecular geometry of C<sub>2</sub>H<sub>6</sub>? A) B) C) D) E)
E) Which of the following wedge-and-dash diagrams best illustrates the molecular geometry of C<sub>2</sub>H<sub>6</sub>? A) B) C) D) E)

Correct Answer

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What is the electron pair geometry shown in the following model? What is the electron pair geometry shown in the following model? A) Tetrahedral B) Angular (Bent) C) Linear D) Trigonal planar E) Trigonal pyramid


A) Tetrahedral
B) Angular (Bent)
C) Linear
D) Trigonal planar
E) Trigonal pyramid

Correct Answer

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A

Which of the following is the best Lewis diagram for HCO3-?


A) Which of the following is the best Lewis diagram for HCO<sub>3</sub><sup>-</sup>? A) B) C) D) E)
B) Which of the following is the best Lewis diagram for HCO<sub>3</sub><sup>-</sup>? A) B) C) D) E)
C) Which of the following is the best Lewis diagram for HCO<sub>3</sub><sup>-</sup>? A) B) C) D) E)
D) Which of the following is the best Lewis diagram for HCO<sub>3</sub><sup>-</sup>? A) B) C) D) E)
E) Which of the following is the best Lewis diagram for HCO<sub>3</sub><sup>-</sup>? A) B) C) D) E)

Correct Answer

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Which of the following molecules is/are nonpolar? i.CH4 ii.CH3Cl iii.CH2Cl2 iv.CHCl3 v.CCl4


A) i only
B) iii only
C) i and v
D) ii and iv
E) i, iii, and v

Correct Answer

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Which of the following molecules is/are polar? i.HF ii.BH3 iii.CBr2F2 iv.PF3


A) ii only
B) i and ii
C) ii and iv
D) i, iii, and iv
E) i, ii, iii, and iv

Correct Answer

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What is the electron pair geometry surrounding the carbon atom in CF4?


A) Linear
B) Trigonal planar
C) Angular (Bent)
D) Tetrahedral
E) Trigonal pyramid

Correct Answer

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Which of the following is the best Lewis diagram for CH3Br?


A) Which of the following is the best Lewis diagram for CH<sub>3</sub>Br? A) B) C) D) E)
B) Which of the following is the best Lewis diagram for CH<sub>3</sub>Br? A) B) C) D) E)
C) Which of the following is the best Lewis diagram for CH<sub>3</sub>Br? A) B) C) D) E)
D) Which of the following is the best Lewis diagram for CH<sub>3</sub>Br? A) B) C) D) E)
E) Which of the following is the best Lewis diagram for CH<sub>3</sub>Br? A) B) C) D) E)

Correct Answer

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B

Which of the following is the best Lewis diagram for CH2O?


A) Which of the following is the best Lewis diagram for CH<sub>2</sub>O? A) B) C) D) E)
B) Which of the following is the best Lewis diagram for CH<sub>2</sub>O? A) B) C) D) E)
C) Which of the following is the best Lewis diagram for CH<sub>2</sub>O? A) B) C) D) E)
D) Which of the following is the best Lewis diagram for CH<sub>2</sub>O? A) B) C) D) E)
E) Which of the following is the best Lewis diagram for CH<sub>2</sub>O? A) B) C) D) E)

Correct Answer

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Which of the following has a trigonal pyramid molecular geometry?


A) Cl2O
B) BeF2
C) BH3
D) NH3
E) CF4

Correct Answer

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D

Which of the following is better classified as an organic compound than as an inorganic compound?


A) Ne
B) HF
C) H2O
D) NH3
E) CH4

Correct Answer

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Which of the following has a(n) bent (angular) molecular geometry?


A) OF2
B) CO2
C) H3O+
D) IO3-
E) NH4+

Correct Answer

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Which of the following has a trigonal planar molecular geometry?


A) CH3OH
B) CH2O
C) NH3
D) NO2-
E) H2O

Correct Answer

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