Question 1

Draw Lewis structure for the following compound.

Accepted Answer

The answer of Draw Lewis structure for the following compound....

Question 2

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 B

Question 3

The lone pairs on nitrogen in the following compound are _______.

Accepted Answer

A)  three localized 
B)  three delocalized 
C)  two localized and one delocalized 
D)  one localized and two delocalized 
A)  three localized 
B)  three delocalized 
C)  two localized and one delocalized 
D)  one localized and two delocalized A

Question 4

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 5

Norethynodrel, a component of the first combined oral contraceptive, has the following structure. Identify the functional groups in Norethynodrel.

Accepted Answer

The answer of Norethynodrel, a component of the first combined...

Question 6

Draw all lone pairs of electrons for the following compound.

Accepted Answer

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

Question 7

What is the relationship between the following compounds?

Accepted Answer

A)  constitutional isomers 
B)  resonance structures 
C)  conformers 
D)  identical compounds 
A)  constitutional isomers 
B)  resonance structures 
C)  conformers 
D)  identical compounds

Question 8

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

Accepted Answer

A)  CH2=CH(CH2)3C(CH3)3 
B)  CH(CH2)4C(CH3)3 
C)  (CH3)2CH(CH2) 4CH3 
D)  CH2CH(CH2)3C(CH3)3 
E)  (CH)3(CH2)3C(CH3)3 
A)  CH2=CH(CH2)3C(CH3)3 
B)  CH(CH2)4C(CH3)3 
C)  (CH3)2CH(CH2) 4CH3 
D)  CH2CH(CH2)3C(CH3)3 
E)  (CH)3(CH2)3C(CH3)3

Question 9

What is the formal charge on the oxygen atom in the following compound?

Accepted Answer

A)  +1 
B)  +2 
C)  -1 
D)  -2 
E)  0 
A)  +1 
B)  +2 
C)  -1 
D)  -2 
E)  0

Question 10

The lone pairs on oxygen in the following compound are _______.

Accepted Answer

A)  both localized 
B)  both delocalized 
C)  one localized and one delocalized 
A)  both localized 
B)  both delocalized 
C)  one localized and one delocalized

Question 11

Which of the following compounds contain an alkene functional group?

Accepted Answer

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

Question 12

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

Accepted Answer

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

Question 13

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 14

Identify the partially condensed structure for CH3CH2OCH2CH3.

Accepted Answer

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

Question 15

Which of the following is the correct Lewis structure for CH3(CH2)2NH2?

Accepted Answer

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

Question 16

Which of the following compounds contain an ester functional group?

Accepted Answer

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

Question 17

Which of the following is the correct bond-line structure for CH3C≡C(CH2)2CH(CH3)2?

Accepted Answer

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

Question 18

Draw the curved arrow(s) for converting the first resonance structure into the second resonance structure.

Accepted Answer

The answer of Draw the curved arrow(s) for converting the...

Question 19

Explain using words as well as structural drawings, if the single curved arrow shown is sufficient to draw the resonance structure.

Accepted Answer

The single arrow shown will vi

Question 20

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

Accepted Answer

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

Exam 2: Molecular Representations

Draw Lewis structure for the following compound.

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

The lone pairs on nitrogen in the following compound are _______.

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

Norethynodrel, a component of the first combined oral contraceptive, has the following structure. Identify the functional groups in Norethynodrel.

Draw all lone pairs of electrons for the following compound.

What is the relationship between the following compounds?

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

What is the formal charge on the oxygen atom in the following compound?

The lone pairs on oxygen in the following compound are _______.

Which of the following compounds contain an alkene functional group?

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

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

Identify the partially condensed structure for CH3CH2OCH2CH3.

Which of the following is the correct Lewis structure for CH3(CH2)2NH2?

Which of the following compounds contain an ester functional group?

Which of the following is the correct bond-line structure for CH3C≡C(CH2)2CH(CH3)2?

Draw the curved arrow(s) for converting the first resonance structure into the second resonance structure.

Explain using words as well as structural drawings, if the single curved arrow shown is sufficient to draw the resonance structure.

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

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

Filters

Identify the partially condensed structure for CH₃CH₂OCH₂CH₃.

Which of the following is the correct Lewis structure for CH₃(CH₂)₂NH₂?

Which of the following is the correct bond-line structure for CH₃C≡C(CH₂)₂CH(CH₃)₂?