Question 1

Which of the following is the balanced chemical equation that represents the addition of Cl2 to CH3CH=CH2?

Accepted Answer

A) CH3CH=CH2 + Cl2 → CH3CHClCH3 + HCl 
B) CH3CH=CH2 + Cl2 → CH3CCl=CHCl + H2 
C) CH3CH=CH2 + Cl2 → CH3CHClCH2Cl 
D) CH3CH=CH2 + 2Cl2 → CH3CHCl2 + CH2Cl2 
E) CH3CH=CH2 + 2Cl2 → CH3CCl2CHCl2 + H2 
A) CH3CH=CH2 + Cl2 → CH3CHClCH3 + HCl 
B) CH3CH=CH2 + Cl2 → CH3CCl=CHCl + H2 
C) CH3CH=CH2 + Cl2 → CH3CHClCH2Cl 
D) CH3CH=CH2 + 2Cl2 → CH3CHCl2 + CH2Cl2 
E) CH3CH=CH2 + 2Cl2 → CH3CCl2CHCl2 + H2

Question 2

Find the suitable reagent for the transformation:

Accepted Answer

A) CrO3, H3O+ 
B) pyridinium chlorochromate (PC
C)  
C) K2Cr2O7, H2SO4 
D) KMnO4, H2SO4 
E) K2Cr2O7, HNO3 
A) CrO3, H3O+ 
B) pyridinium chlorochromate (PC
C)  
C) K2Cr2O7, H2SO4 
D) KMnO4, H2SO4 
E) K2Cr2O7, HNO3

Question 3

Which of the following five substrates is the most likely to be the substrate in an SN2 reaction?

Accepted Answer

A) (I) 
B) (II) 
C) (III) 
D) (IV) 
E) (V) 
A) (I) 
B) (II) 
C) (III) 
D) (IV) 
E) (V)

Question 4

Which of the following five substrates is the most likely to be the substrate in an SN1 reaction?

Accepted Answer

A) (I) 
B) (II) 
C) (III) 
D) (IV) 
E) (V) 
A) (I) 
B) (II) 
C) (III) 
D) (IV) 
E) (V)

Question 5

Identify reagents A and B required for the following transformation of acyl groups: C2H5COOH   C2H5COCl   C2H5CONHCH3 + HCl

Accepted Answer

A) A = HCl; B = H2NCH3 
B) A = NaCl; B = HCONHCH3 
C) A = SOCl2; B = HCONHCH3 
D) A = NaCl; B = H2NCH3 
E) A = SOCl2; B = H2NCH3 
A) A = HCl; B = H2NCH3 
B) A = NaCl; B = HCONHCH3 
C) A = SOCl2; B = HCONHCH3 
D) A = NaCl; B = H2NCH3 
E) A = SOCl2; B = H2NCH3

Question 6

Identify the most oxidized compound.

Accepted Answer

A) CH3CH2COOH 
B) CH3CH2CHO 
C) CH3CH2CH3 
D) CH3CH2OCH3 
E) CH3CH2CH2OH 
A) CH3CH2COOH 
B) CH3CH2CHO 
C) CH3CH2CH3 
D) CH3CH2OCH3 
E) CH3CH2CH2OH

Question 7

What are the major and minor products of the following reaction:

Accepted Answer

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

Question 8

To prepare nitrobenzene (C6H5NO2)from benzene (C6H6), two strong mineral acids are required. Which ones?

Accepted Answer

A) HNO3 and H2SO4 
B) HNO3 and H2SO3 
C) HNO3 and H2S 
D) HNO2 and H2SO4 
E) HNO3 and H2S2O7 
A) HNO3 and H2SO4 
B) HNO3 and H2SO3 
C) HNO3 and H2S 
D) HNO2 and H2SO4 
E) HNO3 and H2S2O7

Question 9

What is the product obtained from the reaction between an aldehyde and a primary alcohol?

Accepted Answer

A) a secondary alcohol 
B) a tertiary alcohol 
C) a hemiacetal 
D) a hemiketal 
E) a carboxylic acid 
A) a secondary alcohol 
B) a tertiary alcohol 
C) a hemiacetal 
D) a hemiketal 
E) a carboxylic acid

Question 10

Which combination of reagents is used in the Friedel-Crafts alkylation?

Accepted Answer

A) alkyl chloride, R-Cl, and aluminum hydroxide, Al(OH)3 
B) alkyl chloride, R-Cl, and aluminum fluoride, AlF3 
C) alkyl chloride, R-Cl, and aluminum chloride, AlCl3 
D) alkyl chloride, R-Cl, and aluminum oxide, Al2O3 
E) acyl chloride, RC(=O)Cl, and aluminum chloride, AlCl3 
A) alkyl chloride, R-Cl, and aluminum hydroxide, Al(OH)3 
B) alkyl chloride, R-Cl, and aluminum fluoride, AlF3 
C) alkyl chloride, R-Cl, and aluminum chloride, AlCl3 
D) alkyl chloride, R-Cl, and aluminum oxide, Al2O3 
E) acyl chloride, RC(=O)Cl, and aluminum chloride, AlCl3

Question 11

Which of the following is the balanced chemical equation for the addition of two equivalents of Br2 to CH3C≡CH?

Accepted Answer

A) CH3C≡CH + 2Br2 → CH3CBr2CHBr2 
B) CH3C≡CH + 2Br2 → CH3CBr=CHBr 
C) CH3C≡CH + 2Br2 → CH3CH2CHBr2 
D) CH3C≡CH + 2Br2 → CH3CBr2CH3 
E) CH3C≡CH + 2Br2 → CH3CHBrCH2Br 
A) CH3C≡CH + 2Br2 → CH3CBr2CHBr2 
B) CH3C≡CH + 2Br2 → CH3CBr=CHBr 
C) CH3C≡CH + 2Br2 → CH3CH2CHBr2 
D) CH3C≡CH + 2Br2 → CH3CBr2CH3 
E) CH3C≡CH + 2Br2 → CH3CHBrCH2Br

Question 12

What is the product for the dehydration of CH3CH2CH2OH?

Accepted Answer

A) CH3CH2CH2OCH2CH2CH3 
B) CH3CH=CH2 
C) CH3CH=CHCH3 
D) CH3CH2CH=CH2 
E) CH2=C=CH2 
A) CH3CH2CH2OCH2CH2CH3 
B) CH3CH=CH2 
C) CH3CH=CHCH3 
D) CH3CH2CH=CH2 
E) CH2=C=CH2

Question 13

Which of the following is the balanced chemical equation for the catalytic hydrogenation (addition of H2)to CH3C≡CH?

Accepted Answer

A) CH3C≡CH + H2 → CH3CH=CH2 
B) CH3C≡CH + 2H2 → CH3CH=CH2 
C) CH3C≡CH + H2 → CH3CH2CH3 
D) CH3C≡CH + 2H2 → CH3CH2CH3 
E) CH3C≡CH + H2 → CH2=C=CH2 
A) CH3C≡CH + H2 → CH3CH=CH2 
B) CH3C≡CH + 2H2 → CH3CH=CH2 
C) CH3C≡CH + H2 → CH3CH2CH3 
D) CH3C≡CH + 2H2 → CH3CH2CH3 
E) CH3C≡CH + H2 → CH2=C=CH2

Question 14

Which combination of reagents is used in the Friedel-Crafts acylation?

Accepted Answer

A) acyl chloride, RC(=O)Cl, and aluminum hydroxide, Al(OH)3 
B) acyl fluoride, RC(=O)F, and aluminum fluoride, AlF3 
C) alkyl chloride, RCH2Cl, and aluminum chloride, AlCl3 
D) acyl chloride, RC(=O)Cl, and aluminum oxide, Al2O3 
E) acyl chloride, RC(=O)Cl, and aluminum chloride, AlCl3 
A) acyl chloride, RC(=O)Cl, and aluminum hydroxide, Al(OH)3 
B) acyl fluoride, RC(=O)F, and aluminum fluoride, AlF3 
C) alkyl chloride, RCH2Cl, and aluminum chloride, AlCl3 
D) acyl chloride, RC(=O)Cl, and aluminum oxide, Al2O3 
E) acyl chloride, RC(=O)Cl, and aluminum chloride, AlCl3

Question 15

Give the product of the oxidation of the following compound:

Accepted Answer

A) CH3CH2CHO 
B) CH3CH2CH2OH 
C) CH3CH2CH3 
D) CH3CH2COOH 
E) CH3CH2OCH3 
A) CH3CH2CHO 
B) CH3CH2CH2OH 
C) CH3CH2CH3 
D) CH3CH2COOH 
E) CH3CH2OCH3

Question 16

Complete and balance the following addition reaction: CH3C   CCH3 + 2Cl2 → ?

Accepted Answer

A) CH3C   CCH3 + 2Cl2 → CH3CCl2CCl2CH3 
B) CH3C   CCH3 + 3Cl2 → 2CH3CCl3 
C) CH3C   CCH3 + 2Cl2 → 4CH3Cl 
D) CH3C   CCH3 + 4Cl2 → 4CH2Cl2 
E) CH3C   CCH3 + Cl2 → CH3CHClCHClCH3 
A) CH3C   CCH3 + 2Cl2 → CH3CCl2CCl2CH3 
B) CH3C   CCH3 + 3Cl2 → 2CH3CCl3 
C) CH3C   CCH3 + 2Cl2 → 4CH3Cl 
D) CH3C   CCH3 + 4Cl2 → 4CH2Cl2 
E) CH3C   CCH3 + Cl2 → CH3CHClCHClCH3

Question 17

What are addition polymers?

Accepted Answer

A) Addition polymers are formed from monomers that bond together and eliminate a small molecule, usually water. 
B) Addition polymers are polymers formed when monomers add together without formation of covalent bonds. 
C) Addition polymers are formed when small molecules (such as water and HX)add across unsaturated C-C bonds in the polymeric chain. 
D) Addition polymers are formed from monomers that link together without the elimination of a small molecule. 
E) Addition polymers are polymers that grow by adding small monomers to the existing polymer chain with elimination of a water molecule for each new bond formed. 
A) Addition polymers are formed from monomers that bond together and eliminate a small molecule, usually water. 
B) Addition polymers are polymers formed when monomers add together without formation of covalent bonds. 
C) Addition polymers are formed when small molecules (such as water and HX)add across unsaturated C-C bonds in the polymeric chain. 
D) Addition polymers are formed from monomers that link together without the elimination of a small molecule. 
E) Addition polymers are polymers that grow by adding small monomers to the existing polymer chain with elimination of a water molecule for each new bond formed.

Question 18

What type of polymers are polyamides?

Accepted Answer

A) Polyamides, formed via step-growth polymerization of diacids and diamines, have the monomers connected through hydrogen bonds. 
B) Polyamides, formed via step-growth polymerization of diacids and diamines, have the monomers connected through amine bonds. 
C) Polyamides, formed via addition polymerization of diacids and diamines, have the monomers connected through amide bonds. 
D) Polyamides, formed via step-growth polymerization of acids and amines, have the monomers connected through amide groups. 
E) Polyamides, formed via step-growth polymerization of diacids and diamines, have the monomers connected through amide groups. 
A) Polyamides, formed via step-growth polymerization of diacids and diamines, have the monomers connected through hydrogen bonds. 
B) Polyamides, formed via step-growth polymerization of diacids and diamines, have the monomers connected through amine bonds. 
C) Polyamides, formed via addition polymerization of diacids and diamines, have the monomers connected through amide bonds. 
D) Polyamides, formed via step-growth polymerization of acids and amines, have the monomers connected through amide groups. 
E) Polyamides, formed via step-growth polymerization of diacids and diamines, have the monomers connected through amide groups.

Question 19

Which part of HCN, the hydrogen or the cyano group, adds to the O in a C=O bond and why?

Accepted Answer

The more negative CN attacks t

Question 20

Find the suitable reagent for the transformation:

Accepted Answer

A) CrO3, H3O+ 
B) pyridinium chlorochromate (PC
C)  
C) K2Cr2O7, H2SO4 
D) KMnO4, H2SO4 
E) K2Cr2O7, HNO3 
A) CrO3, H3O+ 
B) pyridinium chlorochromate (PC
C)  
C) K2Cr2O7, H2SO4 
D) KMnO4, H2SO4 
E) K2Cr2O7, HNO3

Exam 21: Organic Chemistry II: Reactions

Which of the following is the balanced chemical equation that represents the addition of Cl2 to CH3CH=CH2?

Find the suitable reagent for the transformation:

Which of the following five substrates is the most likely to be the substrate in an SN2 reaction?

Which of the following five substrates is the most likely to be the substrate in an SN1 reaction?

Identify reagents A and B required for the following transformation of acyl groups: C2H5COOH C2H5COCl C2H5CONHCH3 + HCl

Identify the most oxidized compound.

What are the major and minor products of the following reaction:

To prepare nitrobenzene (C6H5NO2)from benzene (C6H6), two strong mineral acids are required. Which ones?

What is the product obtained from the reaction between an aldehyde and a primary alcohol?

Which combination of reagents is used in the Friedel-Crafts alkylation?

Which of the following is the balanced chemical equation for the addition of two equivalents of Br2 to CH3C≡CH?

What is the product for the dehydration of CH3CH2CH2OH?

Which of the following is the balanced chemical equation for the catalytic hydrogenation (addition of H2)to CH3C≡CH?

Which combination of reagents is used in the Friedel-Crafts acylation?

Give the product of the oxidation of the following compound:

Complete and balance the following addition reaction: CH3C CCH3 + 2Cl2 → ?

What are addition polymers?

What type of polymers are polyamides?

Which part of HCN, the hydrogen or the cyano group, adds to the O in a C=O bond and why?

Find the suitable reagent for the transformation:

Units of Measurement for Physical and Chemical Change

Atoms and Elements

Molecules, Compounds, and Nomenclature

Chemical Reactions and Stoichiometry

Gases

Thermochemistry

The Quantum-Mechanical Model of the Atom

Periodic Properties of the Elements

Chemical Bonding I: Lewis Theory

Chemical Bonding Ii: Molecular Shapes, Valence Bond Theory, and Molecular Orbital Theory

Liquids, Solids, and Intermolecular Forces

Solutions

Chemical Kinetics

Chemical Equilibrium

Acids and Bases

Aqueous Ionic Equilibrium

Gibbs Energy and Thermodynamics

Electrochemistry

Radioactivity and Nuclear Chemistry

Organic Chemistry I: Structures

Biochemistry

Chemistry of the Nonmetals

Metals and Metallury

Transition Metals and Coordination Compounds

Filters

Which of the following is the balanced chemical equation that represents the addition of Cl₂ to CH₃CH=CH₂?

Which of the following five substrates is the most likely to be the substrate in an S_N² reaction?

Which of the following five substrates is the most likely to be the substrate in an S_N1 reaction?

Identify reagents A and B required for the following transformation of acyl groups: C₂H₅COOH C₂H₅COCl C2H₅CONHCH₃ + HCl

To prepare nitrobenzene (C₆H₅NO₂)from benzene (C₆H₆), two strong mineral acids are required. Which ones?

Which of the following is the balanced chemical equation for the addition of two equivalents of Br₂ to CH₃C≡CH?

What is the product for the dehydration of CH₃CH₂CH₂OH?

Which of the following is the balanced chemical equation for the catalytic hydrogenation (addition of H₂)to CH₃C≡CH?

Complete and balance the following addition reaction: CH₃C CCH₃ + 2Cl₂ → ?