Question 1

Provide a neatly drawn figure to show the atomic orbitals that overlap to form each of the bonds in ethene (ethylene, H2C=CH2). Label each bond (e.g., C-H s bond) and indicate which atomic orbitals contribute to this bond (e.g., C 2sp3 + H 1s).

Accepted Answer

Question 2

Which of the following species possesses a formal charge?

Accepted Answer

A)   BH3
B)   BH4
C)   CCl4
D)   H2SE) A) and D)
F) A) and C) B

Question 3

Which of the following bonds is the most polar?

Accepted Answer

A)   F-F
B)   H-F
C)   C-H
D)   C-SiE) None of the above
F) All of the above

Question 4

How many electrons are there in the valence shell of the carbon atom of the methyl anion, CH3-?

Accepted Answer

A)   2
B)   4
C)   6
D)   8E) None of the above
F) All of the above

Question 5

Which of the following bonds has the smallest dipole moment?

Accepted Answer

A)   Li-Cl
B)   C-H
C)   O-H
D)   H-ClE) A) and C)
F) B) and C)

Question 6

Which of the following species has an atom that has an unfilled valence shell of electrons?

Accepted Answer

A)   molecular bromine, Br2
B)   fluoride anion, F-
C)   ammonia, NH3
D)   aluminum trichloride, AlCl3E) C) and D)
F) A) and B)

Question 7

Which of the following is an ionic bond?

Accepted Answer

A)   F-F
B)   C-H
C)   Li-O
D)   C-NE) All of the above
F) C) and D)

Question 8

Which of the following is a primary amine?

Accepted Answer

A)   CH3CH2NHCH3
B)   CH3CH2NHCH(CH3) 2
C)   CH3CH2N(CH3) 2
D)   (CH3) 3CNH2E) A) and C)
F) B) and C)

Question 9

Which of the following is a primary (1 °\degree° )  alcohol?

Accepted Answer

A)   1
B)   2
C)   3
D)   4 E) B) and D)
F) B) and C)

Question 10

Draw bond-line structures of all of the tertiary (3$\degree$) amines that have the formula C5H11N.

Accepted Answer

Question 11

Which of the following molecules has a molecular dipole?

Accepted Answer

A)   1
B)   2
C)   3
D)   4E) All of the above
F) None of the above

Question 12

Which atomic orbitals overlap to form the C-O bond of dimethyl ether, (CH3) 2O?

Accepted Answer

A)   C 2sp3 + O 2sp2
B)   C 2sp2 + O 2p
C)   C 2sp2 + O 2sp2
D)   C 2sp3 + O 2sp3E) A) and C)
F) B) and D)

Question 13

What is the ground-state electronic configuration of a fluorine atom (fluorine: atomic number 9) ?

Accepted Answer

A)   1s12s12p7
B)   1s22s22p5
C)   1s22s22p6
D)   1s02s22p7E) C) and D)
F) None of the above

Question 14

Draw bond-line structures of all of the tertiary (3$\degree$) alcohols that have the formula C6H14O.

Accepted Answer

Question 15

How many electrons are there in the valence shell of the carbon atom of a methyl cation, CH3+?

Accepted Answer

A)   4
B)   5
C)   6
D)   7E) None of the above
F) A) and B)

Question 16

Which of the following statements is not true regarding resonance structures?

Accepted Answer

A)   All resonance structures must have the same number of electrons
B)   Each atom in all of the resonance structures must have a complete shell of valence electrons
C)   All resonance structures must have the same arrangement of atoms
D)   All resonance structures must be valid Lewis structuresE) A) and B)
F) B) and D)

Question 17

What is the ground-state electronic configuration of a fluoride anion (fluorine: atomic number 9) ?

Accepted Answer

A)   1s22s22p2
B)   1s22s22p5
C)   1s22s22p6
D)   1s22s22p7E) B) and D)
F) A) and D)

Question 18

Which of the following species has an atom that has an unfilled valence shell of electrons?

Accepted Answer

A)   molecular hydrogen, H2
B)   hydroxide anion, HO-
C)   boron trifluoride, BF3
D)   water, H2OE) All of the above
F) A) and D)

Question 19

Which of the following is an ester?

Accepted Answer

A)   1
B)   2
C)   3
D)   4E) None of the above
F) All of the above A

Question 20

Which of the following compounds is a carboxylic acid?

Accepted Answer

A)   CH3CH2COOH
B)   CH3CH2OCH3
C)   CH3CH2CH2OH
D)   CH3CH2CHOE) A) and B)
F) A) and C)

Exam 1: Covalent Bonding and Shapes of Molecules

Provide a neatly drawn figure to show the atomic orbitals that overlap to form each of the bonds in ethene (ethylene, H2C=CH2). Label each bond (e.g., C-H s bond) and indicate which atomic orbitals contribute to this bond (e.g., C 2sp3 + H 1s).

Correct AnswerverifiedShow Answer

Which of the following species possesses a formal charge?

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Which of the following bonds is the most polar?

Correct AnswerverifiedShow Answer

How many electrons are there in the valence shell of the carbon atom of the methyl anion, CH3-?

Correct AnswerverifiedShow Answer

Which of the following bonds has the smallest dipole moment?

Correct AnswerverifiedShow Answer

Which of the following species has an atom that has an unfilled valence shell of electrons?

Correct AnswerverifiedShow Answer

Which of the following is an ionic bond?

Correct AnswerverifiedShow Answer

Which of the following is a primary amine?

Correct AnswerverifiedShow Answer

Which of the following is a primary (1 °\degree° ) alcohol?

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Draw bond-line structures of all of the tertiary (3 °\degree° ) amines that have the formula C5H11N.

Correct Answerverified11eb135c_c79b_883e_8021_ab361ce75112_TB7077_00

Which of the following molecules has a molecular dipole?

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Which atomic orbitals overlap to form the C-O bond of dimethyl ether, (CH3) 2O?

Correct AnswerverifiedShow Answer

What is the ground-state electronic configuration of a fluorine atom (fluorine: atomic number 9) ?

Correct AnswerverifiedShow Answer

Draw bond-line structures of all of the tertiary (3 °\degree° ) alcohols that have the formula C6H14O.

Correct AnswerverifiedShow Answer

How many electrons are there in the valence shell of the carbon atom of a methyl cation, CH3+?

Correct AnswerverifiedShow Answer

Which of the following statements is not true regarding resonance structures?

Correct AnswerverifiedShow Answer

What is the ground-state electronic configuration of a fluoride anion (fluorine: atomic number 9) ?

Correct AnswerverifiedShow Answer

Which of the following species has an atom that has an unfilled valence shell of electrons?

Correct AnswerverifiedShow Answer

Which of the following is an ester?

Correct AnswerverifiedA

Which of the following compounds is a carboxylic acid?

Correct AnswerverifiedShow Answer

Provide a neatly drawn figure to show the atomic orbitals that overlap to form each of the bonds in ethene (ethylene, H₂C=CH₂). Label each bond (e.g., C-H s bond) and indicate which atomic orbitals contribute to this bond (e.g., C 2sp³ + H 1s).

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How many electrons are there in the valence shell of the carbon atom of the methyl anion, CH₃^-?

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Which of the following is a primary (1 $\degree$ ) alcohol? $Which of the following is a primary (1 \degree ) alcohol? A) 1 B) 2 C) 3 D) 4$

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Draw bond-line structures of all of the tertiary (3 $\degree$ ) amines that have the formula C₅H₁₁N.

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11eb135c_c79b_883e_8021_ab361ce75112_TB7077_00

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Which atomic orbitals overlap to form the C-O bond of dimethyl ether, (CH₃) ₂O?

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Draw bond-line structures of all of the tertiary (3 $\degree$ ) alcohols that have the formula C₆H₁₄O.

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How many electrons are there in the valence shell of the carbon atom of a methyl cation, CH₃⁺?

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A

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