Question 1

What is a correct name for the following compound?

Accepted Answer

A)  3-Isobutyl-2-methylheptane 
B)  3-sec-Butyl-2-methyloctane 
C)  5-Isobutyl-6-methylheptane 
D)  2-Ethyl-3-isopropyloctane 
E)  4-Isopropyl-3-methylnonane 
A)  3-Isobutyl-2-methylheptane 
B)  3-sec-Butyl-2-methyloctane 
C)  5-Isobutyl-6-methylheptane 
D)  2-Ethyl-3-isopropyloctane 
E)  4-Isopropyl-3-methylnonane

Question 2

The most stable conformation of 2,3-dimethylpentane,viewed through the C-2-C-3 bond (i.e. ,C-2 in the front,C-3 in the back):

Accepted Answer

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

Question 3

Select the systematic name for

Accepted Answer

A)  cis-1,3-Dichlorocyclopentane 
B)  trans-1,4-Dichlorocyclopentane 
C)  cis-1,2-Dichlorocyclopentane 
D)  trans-1,3-Dichlorocyclopentane 
E)  1,1-Dichlorocyclopentane 
A)  cis-1,3-Dichlorocyclopentane 
B)  trans-1,4-Dichlorocyclopentane 
C)  cis-1,2-Dichlorocyclopentane 
D)  trans-1,3-Dichlorocyclopentane 
E)  1,1-Dichlorocyclopentane

Question 4

In the most stable conformation of cis-1,4-dimethylcyclohexane,the methyl groups are:

Accepted Answer

A)  one axial,one equatorial. 
B)  both axial. 
C)  both equatorial. 
D)  alternating between being both axial and both equatorial. 
E)  None of the above 
A)  one axial,one equatorial. 
B)  both axial. 
C)  both equatorial. 
D)  alternating between being both axial and both equatorial. 
E)  None of the above

Question 5

A correct name for the following compound is:

Accepted Answer

A)  4-bromo-3,8-dimethylbicyclo[5.2.2]nonane 
B)  3,8-dimethyl-4-bromo-bicyclo[5.2.0]nonane 
C)  4-bromo-3,8-dimethylbicyclo[5.2.1]decane 
D)  7-bromo-2,6-dimethylbicyclo[5.2.0]nonane 
E)  4-bromo-3,8-dimethylbicyclo[5.2.0]nonane 
A)  4-bromo-3,8-dimethylbicyclo[5.2.2]nonane 
B)  3,8-dimethyl-4-bromo-bicyclo[5.2.0]nonane 
C)  4-bromo-3,8-dimethylbicyclo[5.2.1]decane 
D)  7-bromo-2,6-dimethylbicyclo[5.2.0]nonane 
E)  4-bromo-3,8-dimethylbicyclo[5.2.0]nonane

Question 6

What product is formed when (trans,trans)-hepta-3,5-dien-1-yne is reacted with Pd/C and H2?

Accepted Answer

A)  heptane
2 
B)  1-heptyne 
C)  1-ethylpentane 
D)  trans-2-heptene 
E)  None of the above 
A)  heptane
2 
B)  1-heptyne 
C)  1-ethylpentane 
D)  trans-2-heptene 
E)  None of the above

Question 7

A compound containing two fused or bridged rings is referred to as a ___________________________.

Accepted Answer

The answer of A compound containing two fused or bridged...

Question 8

The graph below is a plot of the relative energies of the various conformations of:

Accepted Answer

A)  Ethane 
B)  Propane 
C)  Chloroethane 
D)  1-Chloropropane (C1-C2 rotation) 
E)  Butane (C1-C2 rotation) 
A)  Ethane 
B)  Propane 
C)  Chloroethane 
D)  1-Chloropropane (C1-C2 rotation) 
E)  Butane (C1-C2 rotation)

Question 9

The least stable conformation of cyclohexane is the:

Accepted Answer

A)  boat. 
B)  twist boat. 
C)  chair. 
D)  half-chair. 
E)  twist chair. 
A)  boat. 
B)  twist boat. 
C)  chair. 
D)  half-chair. 
E)  twist chair.

Question 10

Which is the correct name for the compound shown below?

Accepted Answer

A)  Bicyclo[2.2.0]hexane 
B)  Bicyclo[2.2.0]butane 
C)  Bicyclo[2.2.2]hexane 
D)  Bicyclo[2.2.1]hexane 
E)  Disquarane 
A)  Bicyclo[2.2.0]hexane 
B)  Bicyclo[2.2.0]butane 
C)  Bicyclo[2.2.2]hexane 
D)  Bicyclo[2.2.1]hexane 
E)  Disquarane

Question 11

What is the index of hydrogen deficiency (or degree of unsaturation)of a compound with the molecular formula of C8H3Br5O2?

Accepted Answer

A)  2 
B)  3 
C)  4 
D)  5 
E)  6 
A)  2 
B)  3 
C)  4 
D)  5 
E)  6

Question 12

Which conformation represents the most stable conformation of trans-1-bromo-4-methylcyclohexane?

Accepted Answer

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

Question 13

What structure represents the most stable conformation of cis-1,3-dimethylcyclohexane?

Accepted Answer

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

Question 14

Which of the following pairs of compounds represent pairs of constitutional isomers?

Accepted Answer

A)  2-Methylbutane and pentane 
B)  2-Chlorohexane and 3-chlorohexane 
C)  sec-Butyl bromide and tert-butyl bromide 
D)  Propyl chloride and isopropyl chloride 
E)  All of the above 
A)  2-Methylbutane and pentane 
B)  2-Chlorohexane and 3-chlorohexane 
C)  sec-Butyl bromide and tert-butyl bromide 
D)  Propyl chloride and isopropyl chloride 
E)  All of the above

Question 15

How many compounds with the formula C7H16 (heptanes)contain a single 3° carbon atom?

Accepted Answer

A)  2 
B)  3 
C)  4 
D)  5 
E)  6 
A)  2 
B)  3 
C)  4 
D)  5 
E)  6

Question 16

How many moles of hydrogen (H2)will react with trans-1,2-dimethylcyclohexane?

Accepted Answer

A)  0
2 
B)  1 
C)  2 
D)  3 
E)  4 
A)  0
2 
B)  1 
C)  2 
D)  3 
E)  4

Question 17

What is the index of hydrogen deficiency (or degree of unsaturation)of a compound with the molecular formula of C9H18N2?

Accepted Answer

A)  2 
B)  3 
C)  4 
D)  5 
E)  6 
A)  2 
B)  3 
C)  4 
D)  5 
E)  6

Question 18

What is the index of hydrogen deficiency (or degree of unsaturation)of the following molecule?

Accepted Answer

A)  2 
B)  3 
C)  4 
D)  5 
E)  6 
A)  2 
B)  3 
C)  4 
D)  5 
E)  6

Question 19

How many moles of hydrogen (H2)will react with (trans,trans)-hepta-3,5-dien-1-yne?

Accepted Answer

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

Question 20

What is the index of hydrogen deficiency (or degree of unsaturation)of a compound with the molecular formula of C7H7NOS?

Accepted Answer

A)  2 
B)  3 
C)  4 
D)  5 
E)  6 
A)  2 
B)  3 
C)  4 
D)  5 
E)  6

Exam 4: Alkanes: Nomenclature, Conformational Analysis, and an Introduction to Synthesis

What is a correct name for the following compound?

The most stable conformation of 2,3-dimethylpentane,viewed through the C-2-C-3 bond (i.e. ,C-2 in the front,C-3 in the back):

Select the systematic name for

In the most stable conformation of cis-1,4-dimethylcyclohexane,the methyl groups are:

A correct name for the following compound is:

What product is formed when (trans,trans)-hepta-3,5-dien-1-yne is reacted with Pd/C and H2?

A compound containing two fused or bridged rings is referred to as a ___________________________.

The graph below is a plot of the relative energies of the various conformations of:

The least stable conformation of cyclohexane is the:

Which is the correct name for the compound shown below?

What is the index of hydrogen deficiency (or degree of unsaturation)of a compound with the molecular formula of C8H3Br5O2?

Which conformation represents the most stable conformation of trans-1-bromo-4-methylcyclohexane?

What structure represents the most stable conformation of cis-1,3-dimethylcyclohexane?

Which of the following pairs of compounds represent pairs of constitutional isomers?

How many compounds with the formula C7H16 (heptanes)contain a single 3° carbon atom?

How many moles of hydrogen (H2)will react with trans-1,2-dimethylcyclohexane?

What is the index of hydrogen deficiency (or degree of unsaturation)of a compound with the molecular formula of C9H18N2?

What is the index of hydrogen deficiency (or degree of unsaturation)of the following molecule?

How many moles of hydrogen (H2)will react with (trans,trans)-hepta-3,5-dien-1-yne?

What is the index of hydrogen deficiency (or degree of unsaturation)of a compound with the molecular formula of C7H7NOS?

Carbon Compounds and Chemical Bonds

Representative Carbon Compounds: Functional Groups, Intermolecular Forces, and Infrared Ir Spectroscopy

An Introduction to Organic Reactions: Acids and Bases

Stereochemistry: Chiral Molecules

Ionic Reactions - Nucleophilic Substitution and Elimination Reactions of Alkyl Halides

Alkenes and Alkynes I: Properties and Synthesis, Elimination Reactions of Alkyl Halides

Alkenes and Alkynes Ii: Addition Reactions

Nuclear Magnetic Resonance and Mass Spectrometry: Tools for Structure Determination

Radical Reactions

Alcohols and Ethers

Alcohols From Carbonyl Compounds Oxidation-Reduction and Organometallic Compounds

Conjugated Unsaturated Systems

Aromatic Compounds

Reactions of Aromatic Compounds

Aldehydes and Ketones I Nucleophilic Addition to the Carbonyl Group

Aldehydes and Ketones Ii Aldol Reactions

Carboxylic Acids and Their Derivatives Nucleophilic Addition - Elimination at the Acyl Carbon

Synthesis and Reactions of Beta-Dicarbonyl Compounds: More Chemistry of Enolate Ions

Amines

Phenols and Aryl Halides: Nucleophilic Aromatic Substitution

Carbohydrates

Lipids

Amino Acids and Proteins

Nucleic Acids and Protein Synthesis

Filters

What product is formed when (trans,trans)-hepta-3,5-dien-1-yne is reacted with Pd/C and H₂?

What is the index of hydrogen deficiency (or degree of unsaturation)of a compound with the molecular formula of C₈H₃Br₅O₂?

How many compounds with the formula C₇H₁₆ (heptanes)contain a single 3° carbon atom?

How many moles of hydrogen (H₂)will react with trans-1,2-dimethylcyclohexane?

What is the index of hydrogen deficiency (or degree of unsaturation)of a compound with the molecular formula of C₉H₁₈N₂?

How many moles of hydrogen (H₂)will react with (trans,trans)-hepta-3,5-dien-1-yne?

What is the index of hydrogen deficiency (or degree of unsaturation)of a compound with the molecular formula of C₇H₇NOS?