Question 1

How many lone pairs of electrons are on the nitrogen atom?

Accepted Answer

A)  one 
B)  two 
C)  three 
D)  four 
E)  none 
A)  one 
B)  two 
C)  three 
D)  four 
E)  none

Question 2

For the following compound identify the lone pairs and indicate if each lone pair is localized or delocalized.

Accepted Answer

The answer of For the following compound identify the lone...

Question 3

Draw the resonance structure indicated by the curved arrows.

Accepted Answer

The answer of Draw the resonance structure indicated by the...

Question 4

Which of the following violates the rules for curved arrows?

Accepted Answer

A)  I 
B)  II and IV 
C)  I and III 
D)  III and IV 
E)  None of these 
A)  I 
B)  II and IV 
C)  I and III 
D)  III and IV 
E)  None of these

Question 5

How many hydrogen atoms are connected to the indicated carbon atom?

Accepted Answer

A)  one 
B)  two 
C)  three 
D)  four 
E)  none 
A)  one 
B)  two 
C)  three 
D)  four 
E)  none

Question 6

For the following equation, how many hydrogen atoms are added or lost?

Accepted Answer

A)  added one 
B)  added two 
C)  lost one 
D)  lost two 
E)  no change 
A)  added one 
B)  added two 
C)  lost one 
D)  lost two 
E)  no change

Question 7

How many lone pairs of electrons are on the indicated oxygen atom?

Accepted Answer

A)  one 
B)  two 
C)  three 
D)  four 
E)  none 
A)  one 
B)  two 
C)  three 
D)  four 
E)  none

Question 8

Which of the following is the correct condensed structure for the following compound?

Accepted Answer

A)  CH3C(CH3)2(CH2)2(CH)BrC(CH3)2 
B)  CH3CH3CH3C(CH2)2C(CH3)2CHBr 
C)  (CH3)3C(CH2)3BrCHCH3CH3 
D)  CH3CH3CH3C(CH2)2CHBrCHCH3CH3 
E)  (CH3)3C(CH2)2CHBrCH(CH3)2 
A)  CH3C(CH3)2(CH2)2(CH)BrC(CH3)2 
B)  CH3CH3CH3C(CH2)2C(CH3)2CHBr 
C)  (CH3)3C(CH2)3BrCHCH3CH3 
D)  CH3CH3CH3C(CH2)2CHBrCHCH3CH3 
E)  (CH3)3C(CH2)2CHBrCH(CH3)2

Question 9

Provide the correct condensed structure for the following compound.

Accepted Answer

The answer of Provide the correct condensed structure for the...

Question 10

Which of the following is/are correct resonance structure(s) for compound A?

Accepted Answer

A)  I and II 
B)  II and III 
C)  III and IV 
D)  I, II and III 
E)  I and IV 
A)  I and II 
B)  II and III 
C)  III and IV 
D)  I, II and III 
E)  I and IV

Question 11

Draw all lone pairs of electrons for the following compound.

Accepted Answer

The answer of Draw all lone pairs of electrons for...

Question 12

Which of the following is/are correct resonance structure(s) for compound A?

Accepted Answer

A)  I and II 
B)  II and III 
C)  III and IV 
D)  I and III 
E)  I and IV 
A)  I and II 
B)  II and III 
C)  III and IV 
D)  I and III 
E)  I and IV

Question 13

For the following compound what is the hybridization state and molecular geometry at each oxygen and nitrogen atom.

Accepted Answer

The answer of For the following compound what is the...

Question 14

Draw the resonance structure indicated by the curved arrows.

Accepted Answer

The answer of Draw the resonance structure indicated by the...

Question 15

For the following equation, how many hydrogen atoms are added or lost?

Accepted Answer

A)  added one 
B)  added two 
C)  lost one 
D)  lost two 
E)  no change 
A)  added one 
B)  added two 
C)  lost one 
D)  lost two 
E)  no change

Question 16

How many lone pairs of electrons are on the nitrogen atom?

Accepted Answer

A)  one 
B)  two 
C)  three 
D)  four 
E)  none 
A)  one 
B)  two 
C)  three 
D)  four 
E)  none

Question 17

Which of the following bond-line structures are of the same compound?

Accepted Answer

A)  I and II 
B)  II and III 
C)  III and IV 
D)  II and IV 
E)  None of these 
A)  I and II 
B)  II and III 
C)  III and IV 
D)  II and IV 
E)  None of these

Question 18

Which of the following is/are the most significant resonance structure(s)?

Accepted Answer

A)  I 
B)  II 
C)  III 
D)  I and II 
E)  all of these 
A)  I 
B)  II 
C)  III 
D)  I and II 
E)  all of these

Question 19

How many hydrogen atoms are connected to the indicated carbon atom?

Accepted Answer

A)  one 
B)  two 
C)  three 
D)  four 
E)  none 
A)  one 
B)  two 
C)  three 
D)  four 
E)  none

Question 20

How many lone pairs of electrons are on the indicated oxygen atom?

Accepted Answer

A)  one 
B)  two 
C)  three 
D)  four 
E)  none 
A)  one 
B)  two 
C)  three 
D)  four 
E)  none

Exam 2: Molecular Representations

How many lone pairs of electrons are on the nitrogen atom?

For the following compound identify the lone pairs and indicate if each lone pair is localized or delocalized.

Draw the resonance structure indicated by the curved arrows.

Which of the following violates the rules for curved arrows?

How many hydrogen atoms are connected to the indicated carbon atom?

For the following equation, how many hydrogen atoms are added or lost?

How many lone pairs of electrons are on the indicated oxygen atom?

Which of the following is the correct condensed structure for the following compound?

Provide the correct condensed structure for the following compound.

Which of the following is/are correct resonance structure(s) for compound A?

Draw all lone pairs of electrons for the following compound.

Which of the following is/are correct resonance structure(s) for compound A?

For the following compound what is the hybridization state and molecular geometry at each oxygen and nitrogen atom.

Draw the resonance structure indicated by the curved arrows.

For the following equation, how many hydrogen atoms are added or lost?

How many lone pairs of electrons are on the nitrogen atom?

Which of the following bond-line structures are of the same compound?

Which of the following is/are the most significant resonance structure(s)?

How many hydrogen atoms are connected to the indicated carbon atom?

How many lone pairs of electrons are on the indicated oxygen atom?

A Review of General Chemistry: Electrons, Bonds, and Molecular Properties

Acids and Bases

Alkanes and Cycloalkanes

Stereoisomerism

Chemical Reactivity and Mechanisms

Alkyl Halides: Nucleophilic Substitution and Elimination Reactions

Addition Reactions of Alkenes

Alkynes

Radical Reactions

Synthesis

Alcohols and Phenols

Ethers and Epoxides; Thiols and Sulfides

Infrared Spectroscopy and Mass Spectrometry

Nuclear Magnetic Resonance Spectroscopy

Conjugated Pi Systems and Pericyclic Reactions

Aromatic Compounds

Aromatic Substitution Reactions

Aldehydes and Ketones

Carboxylic Acids and Their Derivatives

Alpha Carbon Chemistry: Enols and Enolates

Amines

Introduction to Organometallic Compounds

Carbohydrates

Amino Acids, Peptides, and Proteins

Lipids

Synthetic Polymers

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