Question 1

The Lewis model predicts that the formula for a compound between barium and sulfur is:

Accepted Answer

A)  BaS
B)  Ba2S
C)  BaS2
D)  BaS3
E)  none of the aboveF) None of the above
G) A) and E)

Question 2

Which of the following compounds would have a linear molecular geometry? 
1.N2
2.H2S
3.CO2

Accepted Answer

A)  1 and 2 only
B)  1 and 3 only
C)  2 and 3 only
D)  1,2 and 3
E)  neither 1,2,or 3F) A) and B)
G) A) and C)

Question 3

How many bonding electrons are in the Lewis structure of carbon monoxide,CO?

Accepted Answer

A)  2
B)  3
C)  4
D)  6
E)  none of the aboveF) B) and E)
G) D) and E)

Question 4

What is the molecular geometry of SiH4?

Accepted Answer

A)  bent
B)  linear
C)  tetrahedral
D)  trigonal pyramidal
E)  not enough informationF) A) and D)
G) B) and C)

Question 5

The Lewis structure of water has two sets of lone pair electrons.

Accepted Answer

A) True 
 B)False

Question 6

The correct Lewis structure for BF3 would have exactly:

Accepted Answer

A)  1 double bond.
B)  2 double bonds.
C)  1 triple bond.
D)  no double bonds.
E)  none of the aboveF) A) and B)
G) B) and E) D

Question 7

Which molecule below would have a Lewis structure that is an exception to the octet rule?

Accepted Answer

A)  BH3
B)  NO
C)  SI6
D)  PF5
E)  all of theseF) None of the above
G) All of the above E

Question 8

What is the molecular geometry if you have 3 single bonds and 1 lone pair around the central atom?

Accepted Answer

A)  bent
B)  linear
C)  tetrahedral
D)  trigonal pyramidal
E)  not enough informationF) A) and B)
G) A) and E)

Question 9

Consider the Lewis structures for the compound SO3 and the polyatomic ions SO32- and SO42-.Which of these must exist as a set of resonance structures?

Accepted Answer

A)  SO3 only
B)  SO32- only
C)  SO42- only
D)  all of these show resonance
E)  none of these show resonanceF) D) and E)
G) B) and D)

Question 10

What is the correct Lewis structure for water?

Accepted Answer

A)  H-:  :-H
B)  :  -  -  :
C)  H=  =H
D)  H-  -H
E)  none of the aboveF) C) and D)
G) A) and C)

Question 11

Which molecule listed below is a nonpolar molecule?

Accepted Answer

A)  CCl4
B)  CO2
C)  BH3
D)  all of the compounds
E)  none of the compoundsF) B) and D)
G) B) and C)

Question 12

Boron forms compounds that violate the octet rule.

Accepted Answer

A) True 
 B)False

Question 13

The electron geometry and the molecular geometry of water are,respectively:

Accepted Answer

A)  trigonal planar,bent.
B)  tetrahedral,tetrahedral.
C)  tetrahedral,trigonal pyramidal.
D)  tetrahedral,bent.
E)  none of the aboveF) A) and D)
G) B) and D)

Question 14

The central atom in the chlorate anion,ClO3- is surrounded by:

Accepted Answer

A)  two bonding and two unshared pairs of electrons.
B)  one bonding and three unshared pairs of electrons.
C)  three bonding and one unshared pair of electrons.
D)  two double bonds and no unshared pairs of electrons.
E)  none of the above.F) All of the above
G) B) and D)

Question 15

Which symbol should be used between two structures that represent resonance structures?

Accepted Answer

A)  →
B)  ←
C)  ↔
D)  ≡
E)  none of the aboveF) A) and D)
G) D) and E)

Question 16

The Lewis structure for O2 contains a triple bond.

Accepted Answer

A) True 
 B)False

Question 17

The triple bond present in diatomic nitrogen,N2,is what makes this molecule so reactive.

Accepted Answer

A) True 
 B)False  False

Question 18

What is the correct Lewis structure for CN⁻?

Accepted Answer

A)  [C-N]⁻
B)  [:  -  :]⁻
C)  [  =  :]⁻
D)  [: C≡ N :]⁻
E)  none of the aboveF) A) and B)
G) B) and D)

Question 19

What is the molecular geometry of SCl2?

Accepted Answer

A)  bent
B)  linear
C)  tetrahedral
D)  trigonal pyramidal
E)  not enough informationF) C) and D)
G) B) and D)

Question 20

Which of the following is considered a single electron group?

Accepted Answer

A)  a lone pair of electrons
B)  a single bond
C)  a double bond
D)  a triple bond
E)  all of the aboveF) C) and D)
G) A) and B)

Exam 10: Chemical Bonding

The Lewis model predicts that the formula for a compound between barium and sulfur is:

Correct AnswerverifiedShow Answer

Which of the following compounds would have a linear molecular geometry? 1.N2 2.H2S 3.CO2

Correct AnswerverifiedShow Answer

How many bonding electrons are in the Lewis structure of carbon monoxide,CO?

Correct AnswerverifiedShow Answer

What is the molecular geometry of SiH4?

Correct AnswerverifiedShow Answer

The Lewis structure of water has two sets of lone pair electrons.

Correct AnswerverifiedShow Answer

The correct Lewis structure for BF3 would have exactly:

Correct AnswerverifiedD

Which molecule below would have a Lewis structure that is an exception to the octet rule?

Correct AnswerverifiedE

What is the molecular geometry if you have 3 single bonds and 1 lone pair around the central atom?

Correct AnswerverifiedShow Answer

Consider the Lewis structures for the compound SO3 and the polyatomic ions SO32- and SO42-.Which of these must exist as a set of resonance structures?

Correct AnswerverifiedShow Answer

What is the correct Lewis structure for water?

Correct AnswerverifiedShow Answer

Which molecule listed below is a nonpolar molecule?

Correct AnswerverifiedShow Answer

Boron forms compounds that violate the octet rule.

Correct AnswerverifiedShow Answer

The electron geometry and the molecular geometry of water are,respectively:

Correct AnswerverifiedShow Answer

The central atom in the chlorate anion,ClO3- is surrounded by:

Correct AnswerverifiedShow Answer

Which symbol should be used between two structures that represent resonance structures?

Correct AnswerverifiedShow Answer

The Lewis structure for O2 contains a triple bond.

Correct AnswerverifiedShow Answer

The triple bond present in diatomic nitrogen,N2,is what makes this molecule so reactive.

Correct AnswerverifiedFalse

What is the correct Lewis structure for CN⁻?

Correct AnswerverifiedShow Answer

What is the molecular geometry of SCl2?

Correct AnswerverifiedShow Answer

Which of the following is considered a single electron group?

Correct AnswerverifiedShow Answer

Correct Answer
verified

Which of the following compounds would have a linear molecular geometry? 1.N₂ 2.H₂S 3.CO₂

Correct Answer
verified

Correct Answer
verified

What is the molecular geometry of SiH₄?

Correct Answer
verified

Correct Answer
verified

The correct Lewis structure for BF₃ would have exactly:

Correct Answer
verified
D

Correct Answer
verified
E

Correct Answer
verified

Consider the Lewis structures for the compound SO₃ and the polyatomic ions SO₃^2- and SO₄^2-.Which of these must exist as a set of resonance structures?

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

The central atom in the chlorate anion,ClO₃^-is surrounded by:

Correct Answer
verified

Correct Answer
verified

The Lewis structure for O₂ contains a triple bond.

Correct Answer
verified

The triple bond present in diatomic nitrogen,N₂,is what makes this molecule so reactive.

Correct Answer
verified
False

Correct Answer
verified

What is the molecular geometry of SCl₂?

Correct Answer
verified

Correct Answer
verified