Question 1

Which of the following best describes a coordinate bond?

Accepted Answer

A)   A highly-polarized covalent bond.
B)   A bond comprising only one valence electron.
C)   A bond containing two valence electrons, both of which have been donated by the same atom.
D)   A bond containing two valence electrons, one donated from each of the atoms joined by the bond.
E)   A bond that is stronger than a 'regular' covalent bond.F) A) and C)
G) C) and E)

Question 2

A double bond comprises which of the following orbitals?

Accepted Answer

A)   one pi orbital
B)   two sigma orbitals
C)   two pi orbitals
D)   two sigma orbitals and one pi orbital
E)   one sigma orbital and one pi orbitalF) C) and D)
G) A) and E)

Question 3

Two atomic orbitals will overlap to form how many molecular orbitals?

Accepted Answer

A)   One
B)   Two
C)   FourD) A) and B)
E) All of the above

Question 4

A triple bond comprises which of the following orbitals?

Accepted Answer

A)   one sigma orbital and one pi orbital
B)   two pi orbitals
C)   two sigma orbitals
D)   one sigma orbital and two pi orbitals
E)   two sigma orbitals and one pi orbitalF) B) and D)
G) B) and E)

Question 5

Carbon has a valency of four. Which of the following are correct deductions based on this information? Select all that apply.

Accepted Answer

A)   Carbon needs to share two pairs of valence electrons to achieve a full valence shell.
B)   Carbon needs to share four pairs of valence electrons to achieve a full valence shell.
C)   One atom of carbon can form four single covalent bonds.
D)   One atom of carbon can form one double bond and two single bonds.
E)   One atom of carbon can form two single bonds and two double bonds.F) All of the above
G) C) and D)

Question 6

Which of the following statements are true? Select all that apply.

Accepted Answer

A)   The overlap of two atomic orbitals generates two bonding orbitals and two anti-bonding orbitals.
B)   Electrons in anti-bonding orbitals inhibit covalent bond formation.
C)   Electrons in bonding orbitals favour covalent bond formation.
D)   More electrons must occupy a molecule's anti-bonding orbitals than its bonding orbitals for covalent bonding to occur.
E)   A non-bonding orbital does not contribute to covalent bonding.F) C) and D)
G) A) and E) B,C,E

Question 7

Which of the following is a noble gas configuration?

Accepted Answer

A)   1s2 2s2
B)   1s2 2s2 2p4
C)   1p22p22p63s2 3p6
D)   1s2 2s2 2p6 3s1
E)   1s2 2s2 2p6 3s2 3p6 4s1F) C) and E)
G) All of the above

Question 8

Which of the following elements has the highest electronegativity?

Accepted Answer

A)   Oxygen
B)   Sodium
C)   Carbon
D)   Hydrogen
E)   SulfurF) B) and D)
G) D) and E)

Question 9

A full valence shell (except shell 1)  is considered to be occupied by how many electrons?

Accepted Answer

A)   2
B)   8
C)   10
D)   18
E)   24F) A) and C)
G) A) and E)

Question 10

Match the difference in electronegativity between the atoms of two elements with the type of bonding the atoms are most likely to undergo.
-Small difference in electronegativity

Accepted Answer

A)   Ionic bonding
B)   Covalent bondingC) A) and B)
D) undefined B

Question 11

Which of the following statements about delocalized electrons are true? Select all that apply.

Accepted Answer

A)   Delocalized electrons are valence electrons that are shared between more than one pair of atoms.
B)   Delocalized electrons occupy extended sigma orbitals.
C)   Delocalized electrons are a characteristic feature of aromatic compounds.
D)   Delocalized electrons are found only in cyclic compounds.E) B) and C)
F) A) and B)

Question 12

Match the difference in electronegativity between the atoms of two elements with the type of bonding the atoms are most likely to undergo.
-Large difference in electronegativity

Accepted Answer

A)   Ionic bonding
B)   Covalent bondingC) A) and B)
D) undefined

Question 13

Rank the following bonds in order of the extent of their polarization, with 1 being the least polarized, and 4 being the most polarized.

Accepted Answer

a. C-H = 2...

Question 14

Atoms of elements that are unable to undergo chemical bonding are called which of the following?

Accepted Answer

A)   Volatile
B)   Inert
C)   Conjugated
D)   Metallic
E)   RadioactiveF) A) and B)
G) B) and D)

Question 15

Match an element's electronegativity value with the strength with which the element attracts an electron.
-Low electronegativity value

Accepted Answer

A)   Electron strongly attracted
B)   Electron weakly attractedC) A) and B)
D) undefined

Question 16

Match the movement of electrons with the type of bonding associated with it.
-Electrons shared equally between two atoms

Accepted Answer

A)   Covalent bonding
B)   Ionic bonding
C)   No bondingD) A) and B)
E) A) and C)

Question 17

Which of the following are non-polar bonds? Select all that apply.

Accepted Answer

A)   C-H
B)   C=C
C)   C-C
D)   C-O
E)   C=OF) C) and E)
G) C) and D) B,C

Question 18

Match the movement of electrons with the type of bonding associated with it.
-Electrons fully transferred from one atom to another

Accepted Answer

A)   Covalent bonding
B)   Ionic bonding
C)   No bondingD) A) and C)
E) A) and B)

Question 19

Match the movement of electrons with the type of bonding associated with it.
-Electrons not transferred from one atom to another

Accepted Answer

A)   Covalent bonding
B)   Ionic bonding
C)   No bondingD) A) and B)
E) A) and C)

Question 20

Which of the following carry zero charge overall? Select all that apply.

Accepted Answer

A)   An ionic compound
B)   A polyatomic ionic compound
C)   A covalent compound
D)   A molecule
E)   An ionF) B) and D)
G) B) and C)

Exam 3: Compounds and Chemical Bonding: Bringing Atoms Together

Which of the following best describes a coordinate bond?

Correct AnswerverifiedShow Answer

A double bond comprises which of the following orbitals?

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Two atomic orbitals will overlap to form how many molecular orbitals?

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A triple bond comprises which of the following orbitals?

Correct AnswerverifiedShow Answer

Carbon has a valency of four. Which of the following are correct deductions based on this information? Select all that apply.

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Which of the following statements are true? Select all that apply.

Correct AnswerverifiedB,C,E

Which of the following is a noble gas configuration?

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Which of the following elements has the highest electronegativity?

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A full valence shell (except shell 1) is considered to be occupied by how many electrons?

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Match the difference in electronegativity between the atoms of two elements with the type of bonding the atoms are most likely to undergo. -Small difference in electronegativity

Correct AnswerverifiedB

Which of the following statements about delocalized electrons are true? Select all that apply.

Correct AnswerverifiedShow Answer

Match the difference in electronegativity between the atoms of two elements with the type of bonding the atoms are most likely to undergo. -Large difference in electronegativity

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Rank the following bonds in order of the extent of their polarization, with 1 being the least polarized, and 4 being the most polarized.

Correct Answerverifieda. C-H = 2...View AnswerShow Answer

Atoms of elements that are unable to undergo chemical bonding are called which of the following?

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Match an element's electronegativity value with the strength with which the element attracts an electron. -Low electronegativity value

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Match the movement of electrons with the type of bonding associated with it. -Electrons shared equally between two atoms

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Which of the following are non-polar bonds? Select all that apply.

Correct AnswerverifiedB,C

Match the movement of electrons with the type of bonding associated with it. -Electrons fully transferred from one atom to another

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Match the movement of electrons with the type of bonding associated with it. -Electrons not transferred from one atom to another

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Which of the following carry zero charge overall? Select all that apply.

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B,C,E

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B

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a. C-H = 2...
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B,C

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