Question 1

What is the IUPAC name of the following compound?

Accepted Answer

A) Pentane 
B) 2-Methylpentane 
C) 2-Methyl-3-ethylpentane 
D) 3-Ethyl-2-methylpentane 
A) Pentane 
B) 2-Methylpentane 
C) 2-Methyl-3-ethylpentane 
D) 3-Ethyl-2-methylpentane

Question 2

What is the IUPAC name for the following compound?

Accepted Answer

A) 2,3,5-Trimethylhexane 
B) 2,4,5-Triethylhexane 
C) 2,4-Diethyl-5-methylheptane 
D) 4-Ethyl-3,6-dimethyloctane 
A) 2,3,5-Trimethylhexane 
B) 2,4,5-Triethylhexane 
C) 2,4-Diethyl-5-methylheptane 
D) 4-Ethyl-3,6-dimethyloctane

Question 3

What is the IUPAC name for the following compound?

Accepted Answer

A) 4-Ethyl-5-methyloctane 
B) 4-Methyl-5-ethyloctane 
C) 4-Methyl-3-propylheptane 
D) 4-Methyl-5-propyloctane 
A) 4-Ethyl-5-methyloctane 
B) 4-Methyl-5-ethyloctane 
C) 4-Methyl-3-propylheptane 
D) 4-Methyl-5-propyloctane

Question 4

What is the common name of the following alkyl group?

Accepted Answer

A) Isopropyl 
B) Isobutyl 
C) sec-Butyl 
D) tert-Butyl 
A) Isopropyl 
B) Isobutyl 
C) sec-Butyl 
D) tert-Butyl

Question 5

What is the IUPAC name for the following compound?

Accepted Answer

A) 1-Butylcyclohexane 
B) Cyclohexanebutane 
C) 1-Cyclohexylbutane 
D) Butylcyclohexane 
A) 1-Butylcyclohexane 
B) Cyclohexanebutane 
C) 1-Cyclohexylbutane 
D) Butylcyclohexane

Question 6

Which of the following is the most stable conformation of the following compound?

Accepted Answer

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

Question 7

What is the name of the alkyl group that contains two carbons in a straight chain and one-carbon branch?

Accepted Answer

A) Ethyl 
B) Propyl 
C) Isopropyl 
D) None of these 
A) Ethyl 
B) Propyl 
C) Isopropyl 
D) None of these

Question 8

Which of the following cycloalkanes has the most angle strain?

Accepted Answer

A) Cyclopropane 
B) Cyclobutane 
C) Cyclopentane 
D) Cyclohexane 
A) Cyclopropane 
B) Cyclobutane 
C) Cyclopentane 
D) Cyclohexane

Question 9

Which of the following compounds has only primary,secondary,and quaternary carbon atoms?

Accepted Answer

A) Pentane 
B) 2-Methylpentane 
C) 2,2-Dimethylpentane 
D) 2,2,3-Trimethylpentane 
A) Pentane 
B) 2-Methylpentane 
C) 2,2-Dimethylpentane 
D) 2,2,3-Trimethylpentane

Question 10

What is the IUPAC name for the following compound?

Accepted Answer

A) Hexylcyclopentane 
B) 1-Hexylcyclopentane 
C) 1-Cyclopentylhexane 
D) 1-Cyclopentylheptane 
A) Hexylcyclopentane 
B) 1-Hexylcyclopentane 
C) 1-Cyclopentylhexane 
D) 1-Cyclopentylheptane

Question 11

Which of the following chair conformations represents trans-1,3-dimethylcyclohexane?

Accepted Answer

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

Question 12

Which of the following compounds has only primary,secondary,and tertiary carbon atoms?

Accepted Answer

A) Pentane 
B) 2-Methylpentane 
C) 2,2-Dimethylpentane 
D) 2,2,3-Trimethylpentane 
A) Pentane 
B) 2-Methylpentane 
C) 2,2-Dimethylpentane 
D) 2,2,3-Trimethylpentane

Question 13

Which of the following is the lowest energy conformer of 2,3-dimethybutane?

Accepted Answer

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

Question 14

How many cycloalkane constitutional isomers (excluding stereoisomers)are there with molecular formula C5H10?

Accepted Answer

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

Question 15

Which of the following is the most stable conformation of cis-1-ethyl-3-isopropylcyclohexane?

Accepted Answer

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

Question 16

What is the IUPAC name for the following compound?

Accepted Answer

A) 1-Butyl-3-methylcyclohexane 
B) 1-sec-Butyl-3-methylcyclohexane 
C) 1-Methyl-3-sec-butylcyclohexane 
D) 1-sec-Butyl-3-methylhexane 
A) 1-Butyl-3-methylcyclohexane 
B) 1-sec-Butyl-3-methylcyclohexane 
C) 1-Methyl-3-sec-butylcyclohexane 
D) 1-sec-Butyl-3-methylhexane

Question 17

What is the molecular formula of a cycloalkane that has six carbon atoms?

Accepted Answer

A) C6H14 
B) C6H10 
C) C6H12 
D) C6H16 
A) C6H14 
B) C6H10 
C) C6H12 
D) C6H16

Question 18

What is the molecular formula of an alkane that has twenty-three carbon atoms?

Accepted Answer

A) C23H46 
B) C23H48 
C) C23H50 
D) C23H44 
A) C23H46 
B) C23H48 
C) C23H50 
D) C23H44

Question 19

Which of the following is the highest energy conformer of 2,3-dimethylbutane?

Accepted Answer

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

Question 20

What is the IUPAC name for the following compound?

Accepted Answer

A) 3-Ethyl-2,7-dimethyl-5-sec-butyldecane 
B) 5-sec-Butyl-3-ethyl-2,7-dimethyldecane 
C) 2,7-Dimethyl-3-ethyl-5-sec-butyldecane 
D) 3-Ethyl-2,7-dimethyl-5-isobutyldecane 
A) 3-Ethyl-2,7-dimethyl-5-sec-butyldecane 
B) 5-sec-Butyl-3-ethyl-2,7-dimethyldecane 
C) 2,7-Dimethyl-3-ethyl-5-sec-butyldecane 
D) 3-Ethyl-2,7-dimethyl-5-isobutyldecane

Exam 4: Alkanes

What is the IUPAC name of the following compound?

What is the IUPAC name for the following compound?

What is the IUPAC name for the following compound?

What is the common name of the following alkyl group?

What is the IUPAC name for the following compound?

Which of the following is the most stable conformation of the following compound?

What is the name of the alkyl group that contains two carbons in a straight chain and one-carbon branch?

Which of the following cycloalkanes has the most angle strain?

Which of the following compounds has only primary,secondary,and quaternary carbon atoms?

What is the IUPAC name for the following compound?

Which of the following chair conformations represents trans-1,3-dimethylcyclohexane?

Which of the following compounds has only primary,secondary,and tertiary carbon atoms?

Which of the following is the lowest energy conformer of 2,3-dimethybutane?

How many cycloalkane constitutional isomers (excluding stereoisomers)are there with molecular formula C5H10?

Which of the following is the most stable conformation of cis-1-ethyl-3-isopropylcyclohexane?

What is the IUPAC name for the following compound?

What is the molecular formula of a cycloalkane that has six carbon atoms?

What is the molecular formula of an alkane that has twenty-three carbon atoms?

Which of the following is the highest energy conformer of 2,3-dimethylbutane?

What is the IUPAC name for the following compound?

Structure and Bonding

Acids and Bases

Introduction to Organic Molecules and Functional Groups

Stereochemistry

Understanding Organic Reactions

Alkyl Halides and Nucleophilic Substitution

Alkyl Halides and Elimination Reactions

Alcohols,ethers,and Related Compounds

Alkenes and Addition Reactions

Alkynes and Synthesis

Oxidation and Reduction

Radical Reactions

Conjugation,resonance,and Dienes

Benzene and Aromatic Compounds

Reactions of Aromatic Compounds

Introduction to Carbonyl Chemistry; Organometallic Reagents; Oxidation and Reduction

Aldehydes and Ketones - Nucleophilic Addition

Carboxylic Acids and the Acidity of the O-H Bond

Carboxylic Acids and Their Derivatives Nucleophilic Acyl Substitution

Substitution Reactions of Carbonyl Compounds at the a Carbon

Carbonyl Condensation Reactions

Amines

Carbon-Carbon Bond-Forming Reactions in Organic Synthesis

Pericyclic Reactions

Carbohydrates

Amino Acids and Proteins

Synthetic Polymers

Lipids

Spectroscopy A: Mass Spectrometry

Spectroscopy B: Infrared Spectroscopy

Spectroscopy C: Nuclear Magnetic Resonance Spectroscopy

Filters

How many cycloalkane constitutional isomers (excluding stereoisomers)are there with molecular formula C₅H₁₀?