Question 1

Draw an acceptable structure for 4-isopropyl-2-methylheptane.

Accepted Answer

The answer of Draw an acceptable structure for 4-isopropyl-2-methylheptane....

Question 2

Draw an acceptable structure for sec-butylcyclopentane.

Accepted Answer

The answer of Draw an acceptable structure for sec-butylcyclopentane....

Question 3

Which of the following represent constitutional isomers?

Accepted Answer

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

Question 4

Draw the most stable conformer of cis-1-ethyl-4-methylcyclohexane.

Accepted Answer

The answer of Draw the most stable conformer of cis-1-ethyl-4-methylcyclohexane....

Question 5

Which compound is more soluble in water? Briefly explain your choice.
(CH3)2NH or CH3CH2CH3

Accepted Answer

(CH₃)₂NH is more soluble in wate

Question 6

Draw an acceptable structure for 3-ethyl-3-methylhexane.

Accepted Answer

The answer of Draw an acceptable structure for 3-ethyl-3-methylhexane....

Question 7

What is the common name for the following structure?

Accepted Answer

A) isobutane 
B) isopropylmethane 
C) t-Butane 
D) n-Butane 
E) sec-Butane 
A) isobutane 
B) isopropylmethane 
C) t-Butane 
D) n-Butane 
E) sec-Butane

Question 8

Which of the following best explains the reason for the relative stabilities of the conformers shown?

Accepted Answer

A) I has more torsional strain. 
B) I has more steric strain. 
C) II has more torsional strain. 
D) II has more steric strain. 
A) I has more torsional strain. 
B) I has more steric strain. 
C) II has more torsional strain. 
D) II has more steric strain.

Question 9

Give the IUPAC name for the following structure.

Accepted Answer

A) 2-methyl-3-ethylheptane 
B) 3-ethyl-2-methylheptane 
C) 5-Isopropyloctane 
D) 4-Isopropyloctane 
E) 2-methyl-3-propylheptane 
A) 2-methyl-3-ethylheptane 
B) 3-ethyl-2-methylheptane 
C) 5-Isopropyloctane 
D) 4-Isopropyloctane 
E) 2-methyl-3-propylheptane

Question 10

Which of the following describes the most stable conformation of trans-1-tert-butyl-3-methylcyclohexane?

Accepted Answer

A) Both groups are equatorial. 
B) Both groups are axial. 
C) The tert-butyl group is equatorial and the methyl group is axial. 
D) The tert-butyl group is axial and the methyl group is equatorial. 
E) none of the above 
A) Both groups are equatorial. 
B) Both groups are axial. 
C) The tert-butyl group is equatorial and the methyl group is axial. 
D) The tert-butyl group is axial and the methyl group is equatorial. 
E) none of the above

Question 11

Which of the following is true about the following compounds? You may choose more than one answer.

Accepted Answer

A) These are identical compounds. 
B) These are constitutional isomers. 
C) These are conformational isomers. 
D) These are different compounds. 
E) There is no relationship. 
A) These are identical compounds. 
B) These are constitutional isomers. 
C) These are conformational isomers. 
D) These are different compounds. 
E) There is no relationship.

Question 12

Provide a representation of the gauche conformer of butane.

Accepted Answer

The answer of Provide a representation of the gauche conformer...

Question 13

Which of the following correctly ranks the cycloalkanes in order of increasing ring strain per methylene?

Accepted Answer

A) cyclopropane < cyclobutane < cyclohexane < cycloheptane 
B) cyclohexane < cyclopentane < cyclobutane < cyclopropane 
C) cyclopentane < cyclobutane < cyclopentane < cyclopropane 
D) cyclopentane < cyclopropane < cyclobutane < cyclohexane 
E) cyclopropane < cyclopentane < cyclobutane < cyclohexane 
A) cyclopropane < cyclobutane < cyclohexane < cycloheptane 
B) cyclohexane < cyclopentane < cyclobutane < cyclopropane 
C) cyclopentane < cyclobutane < cyclopentane < cyclopropane 
D) cyclopentane < cyclopropane < cyclobutane < cyclohexane 
E) cyclopropane < cyclopentane < cyclobutane < cyclohexane

Question 14

Classify the following amines as primary,secondary,or tertiary.

Accepted Answer

primary,se

Question 15

List the conformations in order of decreasing stability.

Accepted Answer

The answer of List the conformations in order of decreasing...

Question 16

Provide an acceptable name for the alkane shown below.

Accepted Answer

4-isopropy

Question 17

Provide the chair structure of cis-decalin,two cis-fused six-membered rings.

Accepted Answer

The answer of Provide the chair structure of cis-decalin,two cis-fused...

Question 18

Use a sawhorse structure to depict the eclipsed conformer of ethane.

Accepted Answer

The answer of Use a sawhorse structure to depict the...

Question 19

Draw an acceptable structure for 4-t-butyloctane.

Accepted Answer

The answer of Draw an acceptable structure for 4-t-butyloctane....

Question 20

Provide an acceptable name for the alkane shown below.

Accepted Answer

5-sec-butyl-2,2-dime

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

Draw an acceptable structure for 4-isopropyl-2-methylheptane.

Draw an acceptable structure for sec-butylcyclopentane.

Which of the following represent constitutional isomers?

Draw the most stable conformer of cis-1-ethyl-4-methylcyclohexane.

Which compound is more soluble in water? Briefly explain your choice. (CH3)2NH or CH3CH2CH3

Draw an acceptable structure for 3-ethyl-3-methylhexane.

What is the common name for the following structure?

Which of the following best explains the reason for the relative stabilities of the conformers shown?

Give the IUPAC name for the following structure.

Which of the following describes the most stable conformation of trans-1-tert-butyl-3-methylcyclohexane?

Which of the following is true about the following compounds? You may choose more than one answer.

Provide a representation of the gauche conformer of butane.

Which of the following correctly ranks the cycloalkanes in order of increasing ring strain per methylene?

Classify the following amines as primary,secondary,or tertiary.

List the conformations in order of decreasing stability.

Provide an acceptable name for the alkane shown below.

Provide the chair structure of cis-decalin,two cis-fused six-membered rings.

Use a sawhorse structure to depict the eclipsed conformer of ethane.

Draw an acceptable structure for 4-t-butyloctane.

Provide an acceptable name for the alkane shown below.

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

Which compound is more soluble in water? Briefly explain your choice. (CH₃)₂NH or CH₃CH₂CH₃