Question 1

Which of the following has the lowest boiling point?

Accepted Answer

A) CH3CH2CH2CH2CH2CH3 
B)    
C)    
D)    
E) CH3CH2CH2CH2CH2CH2CH3 
A) CH3CH2CH2CH2CH2CH3 
B)    
C)    
D)    
E) CH3CH2CH2CH2CH2CH2CH3

Question 2

Draw the most stable conformation of trans-1-tert-butyl-3-methylcyclohexane.

Accepted Answer

The answer of Draw the most stable conformation of trans-1-tert-butyl-3-methylcyclohexane....

Question 3

Give the systematic name of the cycloalkane shown below.

Accepted Answer

4-butyl-1,

Question 4

Provide the common name of the compound.

Accepted Answer

A) tert-butyldimethylamine 
B) isobutyldimethylamine 
C) neobutyldimethylamine 
D) sec-butyldimethylamine 
E) n-butyldimethylamine 
A) tert-butyldimethylamine 
B) isobutyldimethylamine 
C) neobutyldimethylamine 
D) sec-butyldimethylamine 
E) n-butyldimethylamine

Question 5

Draw the Newman projection of the following molecule sighting down the indicated bond?

Accepted Answer

The answer of Draw the Newman projection of the following...

Question 6

Draw the Newman projection that represents the most stable conformation of 3,3-dimethylhexane viewed along the C3-C4 bond.

Accepted Answer

The answer of Draw the Newman projection that represents the...

Question 7

Provide the common name of the compound.

Accepted Answer

A) neoheptyl chloride 
B) sec-heptyl chloride 
C) isoheptyl chloride 
D) tert-heptyl chloride 
E) n-heptyl chloride 
A) neoheptyl chloride 
B) sec-heptyl chloride 
C) isoheptyl chloride 
D) tert-heptyl chloride 
E) n-heptyl chloride

Question 8

Give the IUPAC name for the following compound.

Accepted Answer

A) 1-chloro-2-methylcyclohexane 
B) 1-methyl-2-chlorocyclohexane 
C) 1-chloro-5-methylcyclohexane 
D) 1-methyl-5-chlorocyclohexane 
E) 1,2-chloromethylcyclohexane 
A) 1-chloro-2-methylcyclohexane 
B) 1-methyl-2-chlorocyclohexane 
C) 1-chloro-5-methylcyclohexane 
D) 1-methyl-5-chlorocyclohexane 
E) 1,2-chloromethylcyclohexane

Question 9

The Keq for the interconversion for the two chair forms of methylcyclohexane at 25 °C is 18.What % of the chair conformers feature an axial methyl group?

Accepted Answer

A) 95 
B) 75 
C) 50 
D) 25 
E) 5 
A) 95 
B) 75 
C) 50 
D) 25 
E) 5

Question 10

The parent chain in the following molecule is

Accepted Answer

A) pentane. 
B) hexane. 
C) heptane. 
D) octane. 
E) nonane. 
A) pentane. 
B) hexane. 
C) heptane. 
D) octane. 
E) nonane.

Question 11

The equilibrium constant for the ring-flip of fluorocyclohexane is 1.5 at 25°C.Calculate the percentage of the axial conformer at the temperature.

Accepted Answer

K_eq = @#IMG-DLM& = 1.5

Question 12

Provide an acceptable name for the alkane shown below.

Accepted Answer

6-ethyl-2-

Question 13

If an acyclic alkane hydrocarbon contains n carbon atoms,how many hydrogen atoms must it also contain?

Accepted Answer

A) n 
B) n + 2 
C) n - 2 
D) 2n 
E) 2n + 2 
A) n 
B) n + 2 
C) n - 2 
D) 2n 
E) 2n + 2

Question 14

Draw the structure of 3-chloro-N-ethyl-2-hexanamine.

Accepted Answer

The answer of Draw the structure of 3-chloro-N-ethyl-2-hexanamine....

Question 15

Give the systematic name of the alkane shown below.

Accepted Answer

4-ethyl-2,

Question 16

Draw the most stable conformer of trans-1-ethyl-3-methylcyclohexane.

Accepted Answer

The answer of Draw the most stable conformer of trans-1-ethyl-3-methylcyclohexane....

Question 17

Which of the following is sec-butyl alcohol?

Accepted Answer

A) CH3CH2CH2CH2OH 
B) CH3CH(OH)CH2CH3 
C) (CH3)2CHCH2OH 
D) (CH3)2CHOH 
E) (CH3)2CHOCH3 
A) CH3CH2CH2CH2OH 
B) CH3CH(OH)CH2CH3 
C) (CH3)2CHCH2OH 
D) (CH3)2CHOH 
E) (CH3)2CHOCH3

Question 18

Draw all possible constitutional isomers for C2H6O and give common names for each structure.

Accepted Answer

Question 19

Which conformer is at a local energy minimum on the potential energy diagram in the chair-chair interconversion of cyclohexane?

Accepted Answer

A) half-chair 
B) planar 
C) boat 
D) twist-boat 
E) fully eclipsed 
A) half-chair 
B) planar 
C) boat 
D) twist-boat 
E) fully eclipsed

Question 20

Give structures for the three isomers with molecular formula C5H12 and provide the common name of each.

Accepted Answer

Exam 3: An Introduction to Organic Compounds: Nomenclature, physical Properties, and Structure

Which of the following has the lowest boiling point?

Draw the most stable conformation of trans-1-tert-butyl-3-methylcyclohexane.

Give the systematic name of the cycloalkane shown below.

Provide the common name of the compound.

Draw the Newman projection of the following molecule sighting down the indicated bond?

Draw the Newman projection that represents the most stable conformation of 3,3-dimethylhexane viewed along the C3-C4 bond.

Provide the common name of the compound.

Give the IUPAC name for the following compound.

The Keq for the interconversion for the two chair forms of methylcyclohexane at 25 °C is 18.What % of the chair conformers feature an axial methyl group?

The parent chain in the following molecule is

The equilibrium constant for the ring-flip of fluorocyclohexane is 1.5 at 25°C.Calculate the percentage of the axial conformer at the temperature.

Provide an acceptable name for the alkane shown below.

If an acyclic alkane hydrocarbon contains n carbon atoms,how many hydrogen atoms must it also contain?

Draw the structure of 3-chloro-N-ethyl-2-hexanamine.

Give the systematic name of the alkane shown below.

Draw the most stable conformer of trans-1-ethyl-3-methylcyclohexane.

Which of the following is sec-butyl alcohol?

Draw all possible constitutional isomers for C2H6O and give common names for each structure.

Which conformer is at a local energy minimum on the potential energy diagram in the chair-chair interconversion of cyclohexane?

Give structures for the three isomers with molecular formula C5H12 and provide the common name of each.

Remembering General Chemistry: Electronic Structure and Bonding

Acids and Bases: Central to Understanding Organic Chemistry

Isomers: the Arrangement of Atoms in Space

Alkenes: Structure,nomenclature,and an Introduction to Reactivity - Thermodynamics and Kinetics

The Reactions of Alkenes - the Stereochemistry of Addition Reactions

The Reactions of Alkynes - Introduction to Multistep Synthesis

Delocalized Electrons: Their Effect on Stability, pka, and the Products of a Reaction - Aromaticity and Electronic Effects: an Introduction to the Reactions of Benzene

Substitution and Elimination Reactions of Alkyl Halides

Reactions of Alcohols, ethers, epoxides, amines and Sulfur-Containing Compounds

Organometallic Compounds

Radicals

Mass Spectrometry,infrared Spectroscopy,and Uvvis Spectroscopy

Nmr Spectroscopy

Reactions of Carboxylic Acids and Carboxylic Acid Derivatives

Reactions of Aldehydes and Ketones

Reactions at the Α-Carbon

Reactions of Benzene and Substituted Benzenes

More About Amines - Reactions of Heterocylic Compounds

The Organic Chemistry of Carbohydrates

Amino Acids,peptides,and Proteins

Catalysis in Organic Reactions and in Enzymatic Reactions

The Organic Chemistry of the Coenzymes, compounds Derived From Vitamins

The Organic Chemistry of the Metabolic Pathways

The Organic Chemistry of Lipids

The Chemistry of the Nucleic Acids

Synthetic Polymers

Pericyclic Reactions

Filters

The K_eq for the interconversion for the two chair forms of methylcyclohexane at 25 °C is 18.What % of the chair conformers feature an axial methyl group?

Draw all possible constitutional isomers for C₂H₆O and give common names for each structure.

Give structures for the three isomers with molecular formula C₅H₁₂ and provide the common name of each.