Question 1

Which of the following reaction types is most characteristic of aromatic compounds?

Accepted Answer

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

Question 2

Bromine (Br2)is often used as a quick test for the presence of unsaturation in an aliphatic hydrocarbon.Bromine in CCl4 is red.When bromine reacts with an alkene or an alkyne,the alkyl halide formed is colorless; hence the disappearance of the red color is a positive test for unsaturation.A student tested the contents of two vials,A and B,both containing compounds with the molecular formula C6H12.Vial A decolorized bromine,but vial B did not.How may the results for vial B be interpreted?

Accepted Answer

A) Vial B must contain a compound with only C−C single bonds. 
B) Vial B must contain a compound with a triple bond. 
C) Vial B must contain a compound with more than one C=C bond. 
D) Vial B must contain a cyclic compound. 
E) Vial B must contain a compound that is not a hydrocarbon. 
A) Vial B must contain a compound with only C−C single bonds. 
B) Vial B must contain a compound with a triple bond. 
C) Vial B must contain a compound with more than one C=C bond. 
D) Vial B must contain a cyclic compound. 
E) Vial B must contain a compound that is not a hydrocarbon.

Question 3

The polymer shown was formed by the addition polymerization of an alkene.   What is the molecular formula of the alkene that formed the polymer?

Accepted Answer

A) C2H2Cl2 
B) C2H3Cl 
C) C3H5Cl 
D) C3H7Cl 
E) C4H6Cl2 
A) C2H2Cl2 
B) C2H3Cl 
C) C3H5Cl 
D) C3H7Cl 
E) C4H6Cl2

Question 4

Sunscreens absorb UV radiation and protect the skin from its harmful effects.Commercially available sunscreens contain a benzene ring in the structure of the active ingredient.Which of the following compounds might be effective as an active ingredient in a commercial sunscreen?

Accepted Answer

A) 
  
B) 
  
C) 
  
D) 
  
E) All of the compounds would be effective. 
A) 
  
B) 
  
C) 
  
D) 
  
E) All of the compounds would be effective.

Question 5

What is the major product formed by the hydration of propene?

Accepted Answer

A) 
  
B) 
  
C) 
  
D) 
  
E) 
  
A) 
  
B) 
  
C) 
  
D) 
  
E)

Question 6

Which of the following correctly states Markovnikov's rule as it applies to the addition of the generic reagent HX to an alkene?

Accepted Answer

A) The hydrogen atom of the HX reagent adds to the carbon atom of the double bond that has more alkyl groups attached to it. 
B) The hydrogen atom of the HX reagent adds to the carbon atom of the double bond that doesn't have any hydrogen atoms attached to it. 
C) The hydrogen atom of the HX reagent adds to the carbon atom of the double bond that has more hydrogen atoms attached to it. 
D) The X atom of the HX reagent adds to the carbon atom of the double bond that has more halogen atoms attached to it. 
E) The X atom of the HX reagent adds to the carbon of the double bond that is closer to the end of the carbon chain. 
A) The hydrogen atom of the HX reagent adds to the carbon atom of the double bond that has more alkyl groups attached to it. 
B) The hydrogen atom of the HX reagent adds to the carbon atom of the double bond that doesn't have any hydrogen atoms attached to it. 
C) The hydrogen atom of the HX reagent adds to the carbon atom of the double bond that has more hydrogen atoms attached to it. 
D) The X atom of the HX reagent adds to the carbon atom of the double bond that has more halogen atoms attached to it. 
E) The X atom of the HX reagent adds to the carbon of the double bond that is closer to the end of the carbon chain.

Question 7

What is the proper IUPAC name of the following compound?

Accepted Answer

A) toluene 
B) phenol 
C) para-dimethylbenzene 
D) ortho-toluene 
E) 1,2-dimethylbenzene 
A) toluene 
B) phenol 
C) para-dimethylbenzene 
D) ortho-toluene 
E) 1,2-dimethylbenzene

Question 8

Hydration of an alkene produces a ketone.

Accepted Answer

A) True 
 B)False

Question 9

para-Chlorotoluene is the name of an organic compound.Based on its name,what information about the structure of this compound is FALSE?

Accepted Answer

A) It is an alkene. 
B) The structure contains a benzene ring. 
C) A methyl group and a chlorine atom are present as substituents. 
D) The substituents that are present have a 1,4 relationship. 
E) All of these are correct. 
A) It is an alkene. 
B) The structure contains a benzene ring. 
C) A methyl group and a chlorine atom are present as substituents. 
D) The substituents that are present have a 1,4 relationship. 
E) All of these are correct.

Question 10

What is the common name of the compound shown?

Accepted Answer

A) methylbenzene 
B) toluene 
C) methyltoluene 
D) methylcyclohexene 
E) None of the choices are correct. 
A) methylbenzene 
B) toluene 
C) methyltoluene 
D) methylcyclohexene 
E) None of the choices are correct.

Question 11

Which of the following terms best describes the geometry around a carbon atom with the bonding pattern shown?

Accepted Answer

A) tetrahedral 
B) straight 
C) saturated 
D) trigonal planar 
E) cyclic 
A) tetrahedral 
B) straight 
C) saturated 
D) trigonal planar 
E) cyclic

Question 12

What is the geometry and bond angle around a carbon atom that has one triple bond and one single bond to its neighboring atoms?

Accepted Answer

A) linear,180o 
B) bent,120o 
C) trigonal planar,120o 
D) trigonal,180o 
E) tetrahedral,109.5o 
A) linear,180o 
B) bent,120o 
C) trigonal planar,120o 
D) trigonal,180o 
E) tetrahedral,109.5o

Question 13

What product results when benzene undergoes the halogenation reaction below?   $+ \mathrm { Br } _ { 2 } \stackrel { \mathrm { FeBr } _ { 3 } } { \longrightarrow }$

Accepted Answer

A) 
  
B) 
  
C) 
  
D) 
  
E) There is no reaction; benzene is unreactive toward bromine. 
A) 
  
B) 
  
C) 
  
D) 
  
E) There is no reaction; benzene is unreactive toward bromine.

Question 14

What is the product of the following reaction?

Accepted Answer

A) 
  
B) 
  
C) 
  
D) 
  
E) 
  
A) 
  
B) 
  
C) 
  
D) 
  
E)

Which of the following reaction types is most characteristic of aromatic compounds?

The polymer shown was formed by the addition polymerization of an alkene. What is the molecular formula of the alkene that formed the polymer?

Sunscreens absorb UV radiation and protect the skin from its harmful effects.Commercially available sunscreens contain a benzene ring in the structure of the active ingredient.Which of the following compounds might be effective as an active ingredient in a commercial sunscreen?

What is the major product formed by the hydration of propene?

Which of the following correctly states Markovnikov's rule as it applies to the addition of the generic reagent HX to an alkene?

What is the proper IUPAC name of the following compound?

Hydration of an alkene produces a ketone.

para-Chlorotoluene is the name of an organic compound.Based on its name,what information about the structure of this compound is FALSE?

What is the common name of the compound shown?

Which of the following terms best describes the geometry around a carbon atom with the bonding pattern shown?

What is the geometry and bond angle around a carbon atom that has one triple bond and one single bond to its neighboring atoms?

What is the product of the following reaction?

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

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

Which of the following reaction types is most characteristic of aromatic compounds?

The polymer shown was formed by the addition polymerization of an alkene. What is the molecular formula of the alkene that formed the polymer?

Sunscreens absorb UV radiation and protect the skin from its harmful effects.Commercially available sunscreens contain a benzene ring in the structure of the active ingredient.Which of the following compounds might be effective as an active ingredient in a commercial sunscreen?

What is the major product formed by the hydration of propene?

Which of the following correctly states Markovnikov's rule as it applies to the addition of the generic reagent HX to an alkene?

What is the proper IUPAC name of the following compound?

Hydration of an alkene produces a ketone.

para-Chlorotoluene is the name of an organic compound.Based on its name,what information about the structure of this compound is FALSE?

What is the common name of the compound shown?

Which of the following terms best describes the geometry around a carbon atom with the bonding pattern shown?

What is the geometry and bond angle around a carbon atom that has one triple bond and one single bond to its neighboring atoms?

What product results when benzene undergoes the halogenation reaction below? +Br2⟶FeBr3+ \mathrm { Br } _ { 2 } \stackrel { \mathrm { FeBr } _ { 3 } } { \longrightarrow }+Br2​⟶FeBr3​​

What is the product of the following reaction?

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

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