Question 1

Draw the structure of the isomeric form of 1,2-dichloroethene (CHC–CHCl) which has no net dipole moment.

Accepted Answer

The answer of Draw the structure of the isomeric form...

Question 2

If a compound, C5H7NO, contains 1 ring, how many pi bonds are there in this compound?

Accepted Answer

A)  0 
B)  1 
C)  2 
D)  3 
A)  0 
B)  1 
C)  2 
D)  3 C

Question 3

Which of the class of organic compound below contains a carbonyl group as a part of its structure?

Accepted Answer

A)  aldehyde 
B)  ketone 
C)  carboxylic acid 
D)  ester 
E)  all of the above 
A)  aldehyde 
B)  ketone 
C)  carboxylic acid 
D)  ester 
E)  all of the above E

Question 4

Two p orbitals can overlap to form a s* molecular orbital. How many nodes are present in this s* molecular orbital?

Accepted Answer

A)  0 
B)  1 
C)  2 
D)  3 
A)  0 
B)  1 
C)  2 
D)  3

Question 5

From a molecular orbital perspective why isn't there relatively free rotation about the carbon-carbon double bond in ethene (CH2=CH2)?

Accepted Answer

Two carbon p atomic orbitals overlap sid

Question 6

Does 1,1-dichloroethene (Cl2C → CH2) have a net molecular dipole moment? If it does, draw the molecule and indicate the direction of this molecular dipole moment.

Accepted Answer

Net molecu

Question 7

The electron density at any point is proportional to the ________ of the electron wave at that point.

Accepted Answer

square of

Question 8

Based on the structure below, what is the value for the H-N-CH3 bond angle?

Accepted Answer

A)  60 degrees 
B)  90 degrees 
C)  109 degrees 
D)  120 degrees 
A)  60 degrees 
B)  90 degrees 
C)  109 degrees 
D)  120 degrees

Question 9

The HCH bond angle in allene (H2CCCH2) is ________.

Accepted Answer

Question 10

A molecule of acetylene (C2H2) has a ________ geometry and a molecular dipole moment that is ________.

Accepted Answer

A)  tetrahedral, nonzero 
B)  bent, nonzero 
C)  bent, zero 
D)  linear, nonzero 
E)  linear, zero 
A)  tetrahedral, nonzero 
B)  bent, nonzero 
C)  bent, zero 
D)  linear, nonzero 
E)  linear, zero

Question 11

When orbitals on different atoms interact, ________ are produced.

Accepted Answer

The answer of When orbitals on different atoms interact, ________...

Question 12

In the structure below, the sigma bond of the carbonyl is formed from the overlap of a(n) ________ atomic orbital of carbon and a(n) ________ atomic orbital of oxygen.

Accepted Answer

A)  sp, sp2 
B)  sp3, sp2 
C)  sp2, sp2 
D)  p, p 
A)  sp, sp2 
B)  sp3, sp2 
C)  sp2, sp2 
D)  p, p

Question 13

Choose the correct hybridization for the atom indicated in the molecule below.

Accepted Answer

A)  sp 
B)  sp2 
C)  sp3 
D)  none of the above 
A)  sp 
B)  sp2 
C)  sp3 
D)  none of the above

Question 14

Boron trifluoride (BF3) is a molecule in which the boron atom is ________ hybridized and the FBF bond angle is ________.

Accepted Answer

Question 15

Choose the correct hybridization for the atom indicated in the molecule below.

Accepted Answer

A)  sp 
B)  sp2 
C)  sp3 
D)  none of the above 
A)  sp 
B)  sp2 
C)  sp3 
D)  none of the above

Question 16

Which compound is more soluble in water? Briefly explain your choice.
CH3OCH3 or CH3CH2OH

Accepted Answer

CH₃CH₂OH is more soluble in water since it

Question 17

How many sp2 hybridized carbon atoms are present in the molecule shown?

Accepted Answer

A)  1 
B)  2 
C)  3 
D)  4 
E)  5 
A)  1 
B)  2 
C)  3 
D)  4 
E)  5

Question 18

Choose the correct hybridization for the atom indicated in the molecule below.

Accepted Answer

A)  sp 
B)  sp2 
C)  sp3 
D)  none of the above 
A)  sp 
B)  sp2 
C)  sp3 
D)  none of the above

Question 19

The structure of Tamiflu, an antiinfluenza drug, is shown below (Organic Lett. $\textbf{    2007,     }$  259). Circle and identify each functional group in Tamiflu.

Accepted Answer

The answer of The structure of Tamiflu, an antiinfluenza drug,...

Question 20

Which functional group occurs more than two times in the structure of the HIV protease inhibitor drug called Saquinavir?

Accepted Answer

A)  ketone 
B)  carboxylic acid 
C)  amine 
D)  amide 
E)  alkene 
A)  ketone 
B)  carboxylic acid 
C)  amine 
D)  amide 
E)  alkene

Exam 2: Structure and Properties of Organic Molecules

Draw the structure of the isomeric form of 1,2-dichloroethene (CHC–CHCl) which has no net dipole moment.

If a compound, C5H7NO, contains 1 ring, how many pi bonds are there in this compound?

Which of the class of organic compound below contains a carbonyl group as a part of its structure?

Two p orbitals can overlap to form a s* molecular orbital. How many nodes are present in this s* molecular orbital?

From a molecular orbital perspective why isn't there relatively free rotation about the carbon-carbon double bond in ethene (CH2=CH2)?

Does 1,1-dichloroethene (Cl2C → CH2) have a net molecular dipole moment? If it does, draw the molecule and indicate the direction of this molecular dipole moment.

The electron density at any point is proportional to the ________ of the electron wave at that point.

Based on the structure below, what is the value for the H-N-CH3 bond angle?

The HCH bond angle in allene (H2CCCH2) is ________.

A molecule of acetylene (C2H2) has a ________ geometry and a molecular dipole moment that is ________.

When orbitals on different atoms interact, ________ are produced.

In the structure below, the sigma bond of the carbonyl is formed from the overlap of a(n) ________ atomic orbital of carbon and a(n) ________ atomic orbital of oxygen.

Choose the correct hybridization for the atom indicated in the molecule below.

Boron trifluoride (BF3) is a molecule in which the boron atom is ________ hybridized and the FBF bond angle is ________.

Choose the correct hybridization for the atom indicated in the molecule below.

Which compound is more soluble in water? Briefly explain your choice. CH3OCH3 or CH3CH2OH

How many sp2 hybridized carbon atoms are present in the molecule shown?

Choose the correct hybridization for the atom indicated in the molecule below.

The structure of Tamiflu, an antiinfluenza drug, is shown below (Organic Lett. 2007, \textbf{ 2007, } 2007, 259). Circle and identify each functional group in Tamiflu.

Which functional group occurs more than two times in the structure of the HIV protease inhibitor drug called Saquinavir?

Introduction and Review

Structure and Stereochemistry of Alkanes

The Study of Chemical Reactions

Stereochemistry

Alkyl Halides: Nucleophilic Substitution and Elimination

Structure and Synthesis of Alkenes

Reactions of Alkenes

Alkynes

Structure and Synthesis of Alcohols

Reactions of Alcohols

Infrared Spectroscopy and Mass Spectrometry

Nuclear Magnetic Resonance Spectroscopy

Ethers, Epoxides, and Thioethers

Conjugated Systems, Orbital Symmetry, and Ultraviolet Spectroscopy

Aromatic Compounds

Reactions of Aromatic Compounds

Ketones and Aldehydes

Amines

Carboxylic Acids

Carboxylic Acid Derivatives

Condensations and Alpha Substitutions of Carboxyl Compounds

Carbohydrates and Nucleic Acids

Amino Acids, Peptides, and Proteins

Lipids

Synthetic Polymers

Filters

If a compound, C₅H₇NO, contains 1 ring, how many pi bonds are there in this compound?

From a molecular orbital perspective why isn't there relatively free rotation about the carbon-carbon double bond in ethene (CH₂=CH₂)?

Does 1,1-dichloroethene (Cl₂C → CH₂) have a net molecular dipole moment? If it does, draw the molecule and indicate the direction of this molecular dipole moment.

Based on the structure below, what is the value for the H-N-CH₃ bond angle?

The HCH bond angle in allene (H₂CCCH₂) is ________.

A molecule of acetylene (C₂H₂) has a geometry and a molecular dipole moment that is .

In the structure below, the sigma bond of the carbonyl is formed from the overlap of a(n) atomic orbital of carbon and a(n) atomic orbital of oxygen.

Boron trifluoride (BF₃) is a molecule in which the boron atom is hybridized and the FBF bond angle is .

Which compound is more soluble in water? Briefly explain your choice. CH₃OCH₃ or CH₃CH₂OH

How many sp²hybridized carbon atoms are present in the molecule shown?