Question 1

What is the hybridization of the nitrogen atom in the molecule below?

Accepted Answer

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

Question 2

The HNC bond angle in the cation [CH2NH2]+ is approximately ________.

Accepted Answer

A)  60° 
B)  90° 
C)  109.5° 
D)  120° 
E)  180° 
A)  60° 
B)  90° 
C)  109.5° 
D)  120° 
E)  180°

Question 3

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

Accepted Answer

Question 4

Which of the following does not contain a carbonyl group?

Accepted Answer

A)  aldehyde 
B)  ketone 
C)  carboxylic acid 
D)  ester 
E)  ether 
A)  aldehyde 
B)  ketone 
C)  carboxylic acid 
D)  ester 
E)  ether

Question 5

Provide the condensed formulas of three structural isomers with molecular formula C5H12 and arrange them in order of increasing boiling point.

Accepted Answer

C(CH₃)₄ < (C

Question 6

What two hybrid atomic orbitals overlap to form the C-C s bond in acetonitrile,
CH3C≡N?

Accepted Answer

Question 7

Are the two compounds shown below best described as $\underline{\text{ cis-trans isomers, constitutional isomers, }}$   or $\underline{\text{  not isomeric?  }}$

Accepted Answer

constituti

Question 8

What is the approximate CCC bond angle in the compound below?

Accepted Answer

A)  60° 
B)  90° 
C)  109.5° 
D)  120° 
E)  180° 
A)  60° 
B)  90° 
C)  109.5° 
D)  120° 
E)  180°

Question 9

Which of the following best describes the relationship between the two structures shown?

Accepted Answer

A)  They represent the same compound. 
B)  They represent different compounds that are constitutional isomers. 
C)  They represent different compounds that are geometric isomers. 
D)  They represent different compounds that are alkenes. 
E)  They represent different compounds that are alkanes. 
A)  They represent the same compound. 
B)  They represent different compounds that are constitutional isomers. 
C)  They represent different compounds that are geometric isomers. 
D)  They represent different compounds that are alkenes. 
E)  They represent different compounds that are alkanes.

Question 10

What intermolecular forces are present among molecules in dimethyl ether, CH3OCH3?

Accepted Answer

A)  London forces only 
B)  hydrogen bonding only 
C)  both London dispersion forces and hydrogen bonding 
D)  both London dispersion forces and dipole-dipole forces 
A)  London forces only 
B)  hydrogen bonding only 
C)  both London dispersion forces and hydrogen bonding 
D)  both London dispersion forces and dipole-dipole forces

Question 11

Draw the structure of any hydrocarbon alkene which contains 4 carbon atoms.

Accepted Answer

The answer of Draw the structure of any hydrocarbon alkene...

Question 12

Which of the following compounds is $\textbf{     not     }$ a constitutional isomer of a compound with an empirical formula C3H7O and a formula mass of 118.164?

Accepted Answer

A) 
  
B) 
  
C) 
  
D) 
  
E) 
  
A) 
  
B) 
  
C) 
  
D) 
  
E)

Question 13

How many carbon-carbon s bonds 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 14

Anisole, the compound shown below, is an example of ________.

Accepted Answer

A)  an ester 
B)  an ether 
C)  an alcohol 
D)  an aldehyde 
E)  a ketone 
A)  an ester 
B)  an ether 
C)  an alcohol 
D)  an aldehyde 
E)  a ketone

Question 15

What two hybrid atomic orbitals overlap to form the C-C s bond in allene, H2C=C=CH2?

Accepted Answer

Question 16

Which sequence ranks the following isomers in order of increasing boiling points?

Accepted Answer

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

Question 17

What kind of molecular orbital (σ, σ*, π, or π*) results when the two atomic orbitals shown below interact in the manner indicated?

Accepted Answer

Question 18

Provide the hybridization of oxygen in acetaldehyde (CH3CHO) and estimate the OCH bond angle.

Accepted Answer

The hybridization of

Question 19

The HCH bond angle in propane (CH3CH2CH3) is ________.

Accepted Answer

approximat

Question 20

Vildagliptin is a recently released antidiabetic drug (J. Med. Chem. $\textbf{       2010  }$ , 7902).
Circle and name each functional group in vildagliptin.

Accepted Answer

The answer of Vildagliptin is a recently released antidiabetic drug...

Exam 2: Structure and Properties of Organic Molecules

What is the hybridization of the nitrogen atom in the molecule below?

The HNC bond angle in the cation [CH2NH2]+ is approximately ________.

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

Which of the following does not contain a carbonyl group?

Provide the condensed formulas of three structural isomers with molecular formula C5H12 and arrange them in order of increasing boiling point.

What two hybrid atomic orbitals overlap to form the C-C s bond in acetonitrile, CH3C≡N?

Are the two compounds shown below best described as cis-trans isomers, constitutional isomers, ‾\underline{\text{ cis-trans isomers, constitutional isomers, }} cis-trans isomers, constitutional isomers, ​ or not isomeric? ‾\underline{\text{ not isomeric? }} not isomeric? ​

What is the approximate CCC bond angle in the compound below?

Which of the following best describes the relationship between the two structures shown?

What intermolecular forces are present among molecules in dimethyl ether, CH3OCH3?

Draw the structure of any hydrocarbon alkene which contains 4 carbon atoms.

Which of the following compounds is not \textbf{ not } not a constitutional isomer of a compound with an empirical formula C3H7O and a formula mass of 118.164?

How many carbon-carbon s bonds are present in the molecule shown?

Anisole, the compound shown below, is an example of ________.

What two hybrid atomic orbitals overlap to form the C-C s bond in allene, H2C=C=CH2?

Which sequence ranks the following isomers in order of increasing boiling points?

What kind of molecular orbital (σ, σ*, π, or π*) results when the two atomic orbitals shown below interact in the manner indicated?

Provide the hybridization of oxygen in acetaldehyde (CH3CHO) and estimate the OCH bond angle.

The HCH bond angle in propane (CH3CH2CH3) is ________.

Vildagliptin is a recently released antidiabetic drug (J. Med. Chem. 2010 \textbf{ 2010 } 2010 , 7902). Circle and name each functional group in vildagliptin.

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

The HNC bond angle in the cation [CH₂NH₂]⁺ is approximately ________.

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

Provide the condensed formulas of three structural isomers with molecular formula C₅H₁₂ and arrange them in order of increasing boiling point.

What two hybrid atomic orbitals overlap to form the C-C s bond in acetonitrile, CH₃C≡N?

What intermolecular forces are present among molecules in dimethyl ether, CH₃OCH₃?

Which of the following compounds is $\textbf{ not }$ a constitutional isomer of a compound with an empirical formula C₃H₇O and a formula mass of 118.164?

What two hybrid atomic orbitals overlap to form the C-C s bond in allene, H₂C=C=CH₂?

What kind of molecular orbital (σ, σ^, π, or π^) results when the two atomic orbitals shown below interact in the manner indicated?

Provide the hybridization of oxygen in acetaldehyde (CH₃CHO) and estimate the OCH bond angle.

The HCH bond angle in propane (CH₃CH₂CH₃) is ________.