Question 1

Which of the following is the general formula of an alkyne containinng one triple bond?

Accepted Answer

A)  CnH2n+2 
B)  C2nH2n-2 
C)  CnHn 
D)  CnH2n 
E)  Cn+2Hn 
A)  CnH2n+2 
B)  C2nH2n-2 
C)  CnHn 
D)  CnH2n 
E)  Cn+2Hn

Question 2

Which one of the following functional groups is a base?

Accepted Answer

A)  aldehyde 
B)  alcohol 
C)  carboxylic acid 
D)  ether 
E)  amine 
A)  aldehyde 
B)  alcohol 
C)  carboxylic acid 
D)  ether 
E)  amine

Question 3

In vulcanized rubber,the polymer chains of natural rubber are cross-linked with sulfur atoms.The polymer chains stretch when stressed,but they return to their original shape when the stress is removed.Substances that behave this way are called ________.

Accepted Answer

The answer of In vulcanized rubber,the polymer chains of natural...

Question 4

What are the two types of stereoisomers?

Accepted Answer

A)  geometrical and optical 
B)  optical and positional 
C)  geometrical and positional 
D)  geometrical and functional group 
E)  chiral and optical 
A)  geometrical and optical 
B)  optical and positional 
C)  geometrical and positional 
D)  geometrical and functional group 
E)  chiral and optical

Question 5

What is the molecular formula of a cyclic alkane with 7 carbon atoms?

Accepted Answer

A)  C7 H16 
B)  C7 H12 
C)  C7 H18 
D)  C7 H14 
E)  C7 H7  
A)  C7 H16 
B)  C7 H12 
C)  C7 H18 
D)  C7 H14 
E)  C7 H7

Question 6

Formulas for derivatives of hydrocarbons may be written as R-X,where R is a hydrocarbon lacking a hydrogen atom and X is a functional group.Which of the following formulas represents a primary amine?

Accepted Answer

A)  RNH2 
B)  RCONH2 
C)  R2NH 
D)  RCO2R' 
E)  R3N 
A)  RNH2 
B)  RCONH2 
C)  R2NH 
D)  RCO2R' 
E)  R3N

Question 7

What class of compounds is responsible for many of the distinctive odors of artificial flavors and perfumes?

Accepted Answer

A)  ethers 
B)  aldehydes 
C)  esters 
D)  amides 
E)  alkenes 
A)  ethers 
B)  aldehydes 
C)  esters 
D)  amides 
E)  alkenes

Question 8

What is the balanced chemical equation for the combustion of 4-methyl-1-pentene?

Accepted Answer

A)  2 C5H10(g)+ 15 O2(g)$\to$ 10 CO2(g)+ 10 H2O(   ) 
B)  2 C4H10(g)+ 13 O2(g)$\to$ 8 CO2(g)+ 10 H2O(   ) 
C)  C4H8(g)+ 6 O2(g)$\to$ 4 CO2(g)+ 4 H2O(   ) 
D)  C6H12(g)+ 9 O2(g)$\to$ 6 CO2(g)+ 6 H2O(   ) 
E)  C5H12(g)+ 13 O2(g)$\to$ 5 CO2 (g)+ 6 H2O(   ) 
A)  2 C5H10(g)+ 15 O2(g)$\to$ 10 CO2(g)+ 10 H2O(   ) 
B)  2 C4H10(g)+ 13 O2(g)$\to$ 8 CO2(g)+ 10 H2O(   ) 
C)  C4H8(g)+ 6 O2(g)$\to$ 4 CO2(g)+ 4 H2O(   ) 
D)  C6H12(g)+ 9 O2(g)$\to$ 6 CO2(g)+ 6 H2O(   ) 
E)  C5H12(g)+ 13 O2(g)$\to$ 5 CO2 (g)+ 6 H2O(   )

Question 9

What is the name of the following compound?

Accepted Answer

A)  trans-acetylene 
B)  cis-1,3-pentadiene 
C)  trans-2,4-pentadiene 
D)  cis-4-methyl-1,3-butadiene 
E)  cis-4-methyl-1,3-butene 
A)  trans-acetylene 
B)  cis-1,3-pentadiene 
C)  trans-2,4-pentadiene 
D)  cis-4-methyl-1,3-butadiene 
E)  cis-4-methyl-1,3-butene

Question 10

The carbon-carbon bonding of cyclobutane is shown below.How many hydrogen atoms are needed to complete the structural formula of cyclobutane?

Accepted Answer

A)  6 
B)  8 
C)  10 
D)  12 
E)  14 
A)  6 
B)  8 
C)  10 
D)  12 
E)  14

Question 11

How many structural isomers possessing the alcohol functional group have the molecular formula C4H10O?

Accepted Answer

A)  1 
B)  2 
C)  3 
D)  4 
E)  5 
A)  1 
B)  2 
C)  3 
D)  4 
E)  5

Question 12

Which of the following chemical equations depicts a halogenation reaction with benzene?

Accepted Answer

A)  C6H6(   )+ 3 Br2(g)$\to$ 3 C2H2Br2(g) 
B)  C6H6(   )+ Cl2(g)$\to$C6H5Cl(   )+ HCl(g) 
C)  C6H6(   )+ CH3I(g)$\to$ C6H5CH3(   )+ HI(g) 
D)  C6H6(   )+ Cl2(g)$\to$ C6H4Cl2(   )+ H2(g) 
E)  C6H6(   )+ 3 Br2(g)$\to$ 6 C6H6Br6(g) 
A)  C6H6(   )+ 3 Br2(g)$\to$ 3 C2H2Br2(g) 
B)  C6H6(   )+ Cl2(g)$\to$C6H5Cl(   )+ HCl(g) 
C)  C6H6(   )+ CH3I(g)$\to$ C6H5CH3(   )+ HI(g) 
D)  C6H6(   )+ Cl2(g)$\to$ C6H4Cl2(   )+ H2(g) 
E)  C6H6(   )+ 3 Br2(g)$\to$ 6 C6H6Br6(g)

Question 13

Which one of the following statements concerning isomers is INCORRECT?

Accepted Answer

A)  Pairs of nonsuperimposable molecules are called enantiomers. 
B)  Enantiomers have identical melting and boiling points. 
C)  Molecules with two or more geometric isomers are termed chiral pairs. 
D)  Optical isomers rotate polarized light in opposite directions. 
E)  Structural isomers have the same composition,but the atoms are linked in different ways. 
A)  Pairs of nonsuperimposable molecules are called enantiomers. 
B)  Enantiomers have identical melting and boiling points. 
C)  Molecules with two or more geometric isomers are termed chiral pairs. 
D)  Optical isomers rotate polarized light in opposite directions. 
E)  Structural isomers have the same composition,but the atoms are linked in different ways.

Question 14

Four of the following compounds are structural isomers.Which one is $\underline{\text{ not? }}$

Accepted Answer

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

Question 15

Draw Lewis structures for all possible isomers of C3H6O.

Accepted Answer

Question 16

What is the name of the following benzene derivative?

Accepted Answer

A)  1-chlorobenzoic acid 
B)  5-chloroanaline 
C)  1-acetate-1-chlorobenzene 
D)  5-chlorobenzoic acid 
E)  1,3-chlorocarboxylic benzene 
A)  1-chlorobenzoic acid 
B)  5-chloroanaline 
C)  1-acetate-1-chlorobenzene 
D)  5-chlorobenzoic acid 
E)  1,3-chlorocarboxylic benzene

Question 17

What is the major product upon addition of HCl to 1-hexene?

Accepted Answer

A)  CH3CH2CH2CH2CHClCH2Cl 
B)  CH3CH2CH2CH2CH2CH3 
C)  CH3CH2CH2CH2CHClCH3 
D)  CH3CH2CH2CH2CH2CH2Cl 
E)  CH3CH2CH2CH2CHCl=CH2 
A)  CH3CH2CH2CH2CHClCH2Cl 
B)  CH3CH2CH2CH2CH2CH3 
C)  CH3CH2CH2CH2CHClCH3 
D)  CH3CH2CH2CH2CH2CH2Cl 
E)  CH3CH2CH2CH2CHCl=CH2

Question 18

Low density polyethylene (LDPE)is most likely to be used in

Accepted Answer

A)  sandwich bags. 
B)  bottle caps. 
C)  rigid pipes. 
D)  contact lenses. 
E)  fabrics and apparel. 
A)  sandwich bags. 
B)  bottle caps. 
C)  rigid pipes. 
D)  contact lenses. 
E)  fabrics and apparel.

Question 19

Which of the following compounds might be used to reduce a carboxylic acid to an aldehyde?

Accepted Answer

A)  H+ 
B)  Cl2 
C)  K2Cr2O7 
D)  KMnO4 
E)  NaBH4 
A)  H+ 
B)  Cl2 
C)  K2Cr2O7 
D)  KMnO4 
E)  NaBH4

Question 20

Which of the following statements is/are CORRECT?
1)Polyethylene forms by the addition reaction of C2H4 molecules.
2)Copolymers form by the polymerization of two (or more)different monomers.
3)A condensation reaction involves reacting two monomers and splitting out a small molecule,often water.

Accepted Answer

A)  1 only 
B)  2 only 
C)  3 only 
D)  1 and 3 
E)  1,2,and 3 
A)  1 only 
B)  2 only 
C)  3 only 
D)  1 and 3 
E)  1,2,and 3

Exam 24: Carbon: Not Just Another Element

Which of the following is the general formula of an alkyne containinng one triple bond?

Which one of the following functional groups is a base?

In vulcanized rubber,the polymer chains of natural rubber are cross-linked with sulfur atoms.The polymer chains stretch when stressed,but they return to their original shape when the stress is removed.Substances that behave this way are called ________.

What are the two types of stereoisomers?

What is the molecular formula of a cyclic alkane with 7 carbon atoms?

Formulas for derivatives of hydrocarbons may be written as R-X,where R is a hydrocarbon lacking a hydrogen atom and X is a functional group.Which of the following formulas represents a primary amine?

What class of compounds is responsible for many of the distinctive odors of artificial flavors and perfumes?

What is the balanced chemical equation for the combustion of 4-methyl-1-pentene?

What is the name of the following compound?

The carbon-carbon bonding of cyclobutane is shown below.How many hydrogen atoms are needed to complete the structural formula of cyclobutane?

How many structural isomers possessing the alcohol functional group have the molecular formula C4H10O?

Which of the following chemical equations depicts a halogenation reaction with benzene?

Which one of the following statements concerning isomers is INCORRECT?

Four of the following compounds are structural isomers.Which one is not? ‾\underline{\text{ not? }} not? ​

Draw Lewis structures for all possible isomers of C3H6O.

What is the name of the following benzene derivative?

What is the major product upon addition of HCl to 1-hexene?

Low density polyethylene (LDPE)is most likely to be used in

Which of the following compounds might be used to reduce a carboxylic acid to an aldehyde?

Which of the following statements is/are CORRECT? 1)Polyethylene forms by the addition reaction of C2H4 molecules. 2)Copolymers form by the polymerization of two (or more)different monomers. 3)A condensation reaction involves reacting two monomers and splitting out a small molecule,often water.

Basic Concepts of Chemistry

Mathlets Review: The Tools of Quantitative Chemistry

Atoms, molecules, and Ions

Chemical Reactions

Stoichiometry: Quantitative Information About Chemical Reactions

Principles of Chemical Reactivity: Energy and Chemical Reactions

The Structure of Atoms

The Structure of Atoms and Periodic Trends

Bonding and Molecular Structure

Bonding and Molecular Structure: Orbital Hybridization and Molecular Orbitals

Gases and Their Properties

Intermolecular Forces and Liquids

The Chemistry of Solids

Solutions and Their Behavior

Chemical Kinetics: the Rates of Chemical Reactions

Principles of Reactivity: Chemical Equilibria

The Chemistry of Acids and Bases

Principles of Reactivity: Other Aspects of Aqueous Equilibria

Entropy and Free Energy

Principles of Reactivity: Electron Transfer Reactions

Environmental Chemistry Earths Environment,energy,and Sustainability

The Chemistry of the Main Group Elements

The Chemistry of the Transition Elements

Biochemistry

Nuclear Chemistry

Filters

How many structural isomers possessing the alcohol functional group have the molecular formula C₄H₁₀O?

Four of the following compounds are structural isomers.Which one is $\underline{\text{ not? }}$

Draw Lewis structures for all possible isomers of C₃H₆O.

Which of the following statements is/are CORRECT? 1)Polyethylene forms by the addition reaction of C₂H₄ molecules. 2)Copolymers form by the polymerization of two (or more)different monomers. 3)A condensation reaction involves reacting two monomers and splitting out a small molecule,often water.