Question 1

Provide the IUPAC name of the following compound:

Accepted Answer

A) cis-1,2-dibromopropane 
B) trans-1,2-dibromo-1-methylethene 
C) cis-1,2-dibromo-2-methylethene 
D) cis-1,2-dibromopropene 
E) trans-1,2-dibromopropene 
A) cis-1,2-dibromopropane 
B) trans-1,2-dibromo-1-methylethene 
C) cis-1,2-dibromo-2-methylethene 
D) cis-1,2-dibromopropene 
E) trans-1,2-dibromopropene

Question 2

How many moles of hydrogen gas (H2)are needed to convert one mole of ethene to ethane?

Accepted Answer

A) 1 
B) 2 
C) 3 
D) 4 
E) 8 
A) 1 
B) 2 
C) 3 
D) 4 
E) 8

Question 3

Which of the following compounds exists as cis-trans isomers?

Accepted Answer

A) 1-pentene 
B) butane 
C) 2-methyl-1-butene 
D) 3-hexene 
E) 2,3-dimethyl-2-butene 
A) 1-pentene 
B) butane 
C) 2-methyl-1-butene 
D) 3-hexene 
E) 2,3-dimethyl-2-butene

Question 4

The common name of ethyne is acetylene.

Accepted Answer

A) True 
 B)False

Question 5

Which term correctly describes the substitution pattern on the benzene ring in Fenfluramine,one component of the appetite suppressant Fen-Phen?

Accepted Answer

A) trans 
B) syn 
C) meta 
D) cis 
E) ortho 
A) trans 
B) syn 
C) meta 
D) cis 
E) ortho

Question 6

What is the IUPAC name of HC≡CH?

Accepted Answer

A) acetyne 
B) butyne 
C) ethyne 
D) diyne 
E) triyne 
A) acetyne 
B) butyne 
C) ethyne 
D) diyne 
E) triyne

Question 7

Which of the following reactions would provide the highest yield of 3-bromohexane?

Accepted Answer

A) 
  $+\mathrm{HBr} \longrightarrow$ 
B) 
  $+\mathrm{HBr} \longrightarrow$ 
C) 
  $+\mathrm{Br}_{2} \longrightarrow$ 
D) 
  $+ \mathrm { HBr } \longrightarrow$ 
E) All would provide equal yields of 3-bromohexane. 
A) 
  $+\mathrm{HBr} \longrightarrow$ 
B) 
  $+\mathrm{HBr} \longrightarrow$ 
C) 
  $+\mathrm{Br}_{2} \longrightarrow$ 
D) 
  $+ \mathrm { HBr } \longrightarrow$ 
E) All would provide equal yields of 3-bromohexane.

Question 8

What is the name of the organic product in the reaction of benzene and chlorine (with FeCl3 as a catalyst)?

Accepted Answer

A) 2-chlrorobenzene 
B) meta-dichlorobenzene 
C) 1,2-dichlorobenzene 
D) 1-chlorobenzene 
E) chlorobenzene 
A) 2-chlrorobenzene 
B) meta-dichlorobenzene 
C) 1,2-dichlorobenzene 
D) 1-chlorobenzene 
E) chlorobenzene

Question 9

Which of the following is the correct molecular formula for cyclopentene?

Accepted Answer

A) C4H8 
B) C5H8 
C) C5H12 
D) C5H10 
E) C5H6 
A) C4H8 
B) C5H8 
C) C5H12 
D) C5H10 
E) C5H6

Question 10

The compound ortho-dichlorobenzene has substituents on which carbon atoms of the benzene ring?

Accepted Answer

A) C1 and C2 
B) C1 and C3 
C) C1 and C4 
D) C1 and C 5 
E) C1 only 
A) C1 and C2 
B) C1 and C3 
C) C1 and C4 
D) C1 and C 5 
E) C1 only

Question 11

Which of the following best describes the changes that occurred in the reaction shown below?

Accepted Answer

A) An H atom and an -OH group have been added to the reactant. 
B) An -OH group has been added to the reactant. 
C) An -OH group has replaced an H atom on the ring. 
D) Two H atoms have been added. 
E) An -OH group has replaced a carbon atom on the ring. 
A) An H atom and an -OH group have been added to the reactant. 
B) An -OH group has been added to the reactant. 
C) An -OH group has replaced an H atom on the ring. 
D) Two H atoms have been added. 
E) An -OH group has replaced a carbon atom on the ring.

Question 12

When 4,4-dimethyl-2-pentene adds H2 in an addition reaction,what is the name of the product that results?

Accepted Answer

A) pentane 
B) 2,2-dimethylpentane 
C) 4,4-dimethylpentane 
D) 4,4-dimethyl-2-pentane 
E) 2,3-dihydro-4,4-dimethylpentane 
A) pentane 
B) 2,2-dimethylpentane 
C) 4,4-dimethylpentane 
D) 4,4-dimethyl-2-pentane 
E) 2,3-dihydro-4,4-dimethylpentane

Question 13

Both 1-butene and 2-butene have cis- and trans-isomers.

Accepted Answer

A) True 
 B)False

Question 14

What is the IUPAC name of the following compound?

Accepted Answer

A) 1,2-dimethylbutene 
B) cis-2-butene 
C) trans-2-butene 
D) 1,2-dimethylethene 
E) cis-1,2-dimethylbutene 
A) 1,2-dimethylbutene 
B) cis-2-butene 
C) trans-2-butene 
D) 1,2-dimethylethene 
E) cis-1,2-dimethylbutene

Question 15

What is the structure and name of the major product of the following reaction? CH3CH=CH2 + HCl → ?

Accepted Answer

A) CH3CH2CH2Cl,3-chloropropane 
B) CH3CH2CH2Cl,1-chloropropane 
C) CH2CHClCH3,2-chloropropane 
D) CH3CH=CHCl,1-chloro-1-propene 
E) There is no major product. 
A) CH3CH2CH2Cl,3-chloropropane 
B) CH3CH2CH2Cl,1-chloropropane 
C) CH2CHClCH3,2-chloropropane 
D) CH3CH=CHCl,1-chloro-1-propene 
E) There is no major product.

Question 16

Which reaction type is most characteristic of alkenes?

Accepted Answer

A) substitution 
B) addition 
C) elimination 
D) combination 
E) decomposition 
A) substitution 
B) addition 
C) elimination 
D) combination 
E) decomposition

Question 17

What is the IUPAC name of the following compound?

Accepted Answer

A) cis-2-butene 
B) trans-2-butene 
C) cis-1,2-dimethylethene 
D) trans-1,2-dimethylethene 
E) cis-1,2-dimethylbutene 
A) cis-2-butene 
B) trans-2-butene 
C) cis-1,2-dimethylethene 
D) trans-1,2-dimethylethene 
E) cis-1,2-dimethylbutene

Question 18

What is the proper IUPAC name for an alkene that contains three carbon atoms?

Accepted Answer

A) 1-methylethene 
B) 2-methylethene 
C) propene 
D) propane 
E) 1-propyne 
A) 1-methylethene 
B) 2-methylethene 
C) propene 
D) propane 
E) 1-propyne

Question 19

Alkenes contain only double bonds.

Accepted Answer

A) True 
 B)False

Question 20

What is the proper name of the product formed by the hydrogenation of 2-octene?

Accepted Answer

A) 2-octane 
B) 1-octene 
C) 2-octyne 
D) octane 
E) cyclooctane 
A) 2-octane 
B) 1-octene 
C) 2-octyne 
D) octane 
E) cyclooctane

Exam 11: The Unsaturated Hydrocarbons: Alkenes, alkynes, and Aromatics

Provide the IUPAC name of the following compound:

How many moles of hydrogen gas (H2)are needed to convert one mole of ethene to ethane?

Which of the following compounds exists as cis-trans isomers?

The common name of ethyne is acetylene.

Which term correctly describes the substitution pattern on the benzene ring in Fenfluramine,one component of the appetite suppressant Fen-Phen?

What is the IUPAC name of HC≡CH?

Which of the following reactions would provide the highest yield of 3-bromohexane?

What is the name of the organic product in the reaction of benzene and chlorine (with FeCl3 as a catalyst)?

Which of the following is the correct molecular formula for cyclopentene?

The compound ortho-dichlorobenzene has substituents on which carbon atoms of the benzene ring?

Which of the following best describes the changes that occurred in the reaction shown below?

When 4,4-dimethyl-2-pentene adds H2 in an addition reaction,what is the name of the product that results?

Both 1-butene and 2-butene have cis- and trans-isomers.

What is the IUPAC name of the following compound?

What is the structure and name of the major product of the following reaction? CH3CH=CH2 + HCl → ?

Which reaction type is most characteristic of alkenes?

What is the IUPAC name of the following compound?

What is the proper IUPAC name for an alkene that contains three carbon atoms?

Alkenes contain only double bonds.

What is the proper name of the product formed by the hydrogenation of 2-octene?

Chemistry - Methods and Measurement

The Structure of the Atom and the Periodic Table

Structure and Properties of Ionic and Covalent Compounds

Calculations, chemical Changes, and the Chemical Equation

States of Matter: Gases, liquids, and Solids

Solutions

Energy,rate and Equilibrium

Acids and Bases

The Nucleus, radioactivity, and Nuclear Medicine

An Introduction to Organic Chemistry

Alcohols, phenols, thiols, and Ethers

Aldehydes and Ketones

Carboxylic Acids and Carboxylic Acid Derivatives

Amines and Amides

Carbohydrates

Lipids and Their Functions in Biochemical Systems

Protein Structure and Function

Enzymes

Introduction to Molecular Genetics

Carbohydrate Metabolism

Aerobic Respiration and Energy Production

Fatty Acid Metabolism

Filters

How many moles of hydrogen gas (H₂)are needed to convert one mole of ethene to ethane?

What is the name of the organic product in the reaction of benzene and chlorine (with FeCl₃ as a catalyst)?

When 4,4-dimethyl-2-pentene adds H₂ in an addition reaction,what is the name of the product that results?

What is the structure and name of the major product of the following reaction? CH₃CH=CH₂ + HCl → ?