Question 1

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

Question 2

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

Accepted Answer

A) True 
 B)False  False

Question 3

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 these 
A) BH3 
B) NO 
C) SI6 
D) PF5 
E) all of these E

Question 4

What is the molecular geometry of SCl2?

Accepted Answer

A) bent 
B) linear 
C) tetrahedral 
D) trigonal pyramidal 
E) not enough information 
A) bent 
B) linear 
C) tetrahedral 
D) trigonal pyramidal 
E) not enough information

Question 5

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 3 
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 3

Question 6

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

Question 7

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 above 
A) BaS 
B) Ba2S 
C) BaS2 
D) BaS3 
E) none of the above

Question 8

Boron forms compounds that violate the octet rule.

Accepted Answer

A) True 
 B)False

Question 9

What is the molecular geometry of SiH4?

Accepted Answer

A) bent 
B) linear 
C) tetrahedral 
D) trigonal pyramidal 
E) not enough information 
A) bent 
B) linear 
C) tetrahedral 
D) trigonal pyramidal 
E) not enough information

Question 10

The Lewis structure for O2 contains a triple bond.

Accepted Answer

A) True 
 B)False

Question 11

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 information 
A) bent 
B) linear 
C) tetrahedral 
D) trigonal pyramidal 
E) not enough information

Question 12

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

Question 13

What is the correct Lewis structure for CN⁻?

Accepted Answer

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

Question 14

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

Question 15

What is the correct Lewis structure for water?

Accepted Answer

A) H-:   :-H 
B) :   -   -   : 
C) H=   =H 
D) H-   -H 
E) none of the above 
A) H-:   :-H 
B) :   -   -   : 
C) H=   =H 
D) H-   -H 
E) none of the above

Question 16

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

Accepted Answer

A) → 
B) ← 
C) ↔ 
D) ≡ 
E) none of the above 
A) → 
B) ← 
C) ↔ 
D) ≡ 
E) none of the above

Question 17

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 above 
A) 2 
B) 3 
C) 4 
D) 6 
E) none of the above

Question 18

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. 
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.

Question 19

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

Question 20

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

Accepted Answer

A) True 
 B)False

The correct Lewis structure for BF₃ would have exactly:

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

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

What is the molecular geometry of SCl₂?

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

Which of the following is considered a single electron group?

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

Boron forms compounds that violate the octet rule.

What is the molecular geometry of SiH₄?

The Lewis structure for O₂ contains a triple bond.

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

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?

What is the correct Lewis structure for CN⁻?

Which molecule listed below is a nonpolar molecule?

What is the correct Lewis structure for water?

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

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

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

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

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

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Exam 10: Chemical Bonding

The correct Lewis structure for BF3 would have exactly:

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

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

What is the molecular geometry of SCl2?

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

Which of the following is considered a single electron group?

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

Boron forms compounds that violate the octet rule.

What is the molecular geometry of SiH4?

The Lewis structure for O2 contains a triple bond.

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

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?

What is the correct Lewis structure for CN⁻?

Which molecule listed below is a nonpolar molecule?

What is the correct Lewis structure for water?

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

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

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

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

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

The Chemical World

Measurement and Problem Solving

Matter and Energy

Atoms and Elements

Molecules and Compounds

Chemical Composition

Chemical Reactions

Quantities in Chemical Reactions

Electrons in Atoms and the Periodic Table

Gases

Liquids, solids, and Intermolecular Forces

Solutions

Acids and Bases

Chemical Equilibrium

Oxidation and Reduction

Radioactivity and Nuclear Chemistry

Organic Chemistry

Biochemistry

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The correct Lewis structure for BF₃ would have exactly:

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

What is the molecular geometry of SCl₂?

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

What is the molecular geometry of SiH₄?

The Lewis structure for O₂ contains a triple bond.

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?

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