Deck 21: Organic Chemistry II: Reactions

Question 1

Give the organic product for the following reaction. CH₃CH₂CH₂NH₂ + HCl

A)ClCH₂CH₂CH₂NH₂
B)CH₃CHClCH₂NH₂
C)CH₃CH₂CHClNH₂
D)CH₃CH₂CH₂NHCl
E)CH₃CH₂CH₂NH₃⁺Cl^-

Answer 1

CH₃CH₂CH₂NH₃⁺Cl^-

Question 2

In which of the following families would the strongest organic acids be found?

A)ethers
B)alcohols
C)amines
D)esters
E)alkanes

Answer 2

alcohols

Question 3

In which of the following families would the strongest organic bases be found?

A)amines
B)ethers
C)esters
D)alcohols
E)ketones

Answer 3

amines

Question 4

Arrange the following in order from most oxidized to least oxidized.

A)II > I > III
B)III > II > I
C)III > I > II
D)I > II > III
E)II > III > I

Question 5

Determine the product(s)of the reduction of the following compound:

A)
B)
C)
D)
E)

Question 6

Find the suitable base for the following reaction: CH₃C(=O)CH₃ + :B → CH₃C(=O)CH₂:^- + H:B⁺
The pKa for CH₃C(=O)CH₃ (acetone)is 20. The formula for the base is followed by the pKa of its conjugate acid.

A)H₂O, pKa = 15.74
B)NH₃, pKa = 9.25
C)CH₃CH₂O^-, pKa = 16
D)C₆H₅O^-, pKa = 9.88
E)NH₂^-, pKa = 38

Question 7

Choose the weak acid from the compounds below.

A)CH₃CH₂NH₂
B)CH₃CH₂CO₂H
C)CH₃CH₂OCH₃
D)CH₃CH₂F
E)CH₃COOC₂H₅

Question 8

Arrange the following in order from least oxidized to most oxidized.

A)II < I < III
B)III < I = II
C)III < I < II
D)I < II < III
E)I < III < II

Question 9

Find the suitable reagent for the transformation:

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

Question 10

Find the suitable reagent for the transformation:

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

Question 11

Choose the weak base from the compounds below.

A)(CH₃)₂NH
B)CH₃CO₂H
C)CH₃COCH₃
D)CH₃CH₃
E)CH₃CH₂F

Question 12

Find the suitable base for the following reaction: C₆H₅OH + :B → C₆H₅O:^- + H:B⁺
The pKa for C₆H₅OH (phenol)is 9.88. The formula for the base is followed by the pKa of its conjugate acid.

A)CN^-, pKa = 9.31
B)CF₃COO^-, pKa = 0.23
C)CH₃C(=O)CH₃, pKa = -7.2
D)CH₃COO^-, pKa = 4.74
E)OH^-, pKa = 15.73

Question 13

Find the suitable reagent for the transformation:

A)NaBH₄
B)LiAlH₄
C)Pd/H₂
D)NaH
E)Pd/C

Question 14

What are secondary alcohols oxidized to?

A)tertiary alcohols
B)ethers
C)esters
D)aldehydes
E)ketones

Question 15

Identify the most oxidized compound.

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

Question 16

Which is the strongest organic acid?

A)F₃CCOOH
B)F₂HCCOOH
C)H₃COOH
D)ClH₂CCOOH
E)FH₂CCOOH

Question 17

Find the suitable reagent for the transformation:

A)NaBH₄
B)LiAlH₄
C)Pd/H₂
D)NaH
E)Pd/C

Question 18

Determine the products of the following reaction:

A)
B)
C)
D)
E)

Question 19

Write a balanced chemical reaction to represent the combustion of 2,2-dimethylpropane.

A)C₅H₁₂ + 8O₂ → 5CO₂ + 6H₂O
B)C₃H₈ + 5O₂ → 3CO₂ + 4H₂O
C)C₅H₁₂ + H₂ → CH₄ + 2C₂H₆
D)C₃H₈ + H₂ → CH₄ + C₂H₆
E)2 C₃H₈ + O₂ → 3CH₄ + 2H₂O

Question 20

What are primary alcohols oxidized to?

A)secondary alcohols
B)ethers
C)esters
D)aldehydes
E)ketones

Question 21

Give the product of the oxidation of the following compound:

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

Question 22

Which of the following statements is TRUE?

A)The nucleophile strongly influences both S_N1 and S_N2 reactions, while the nature of the nucleophile and the substrate structure are only important in S_N2 reactions.
B)The structure of the substrate is the only important factor for S_N1 reactions, while the nucleophile, leaving group, and the structure of the substrate are all important for S_N2 reactions.
C)For S_N2 reactions the only important factor to consider is the leaving group; for S_N1 reactions the structure of the substrate and the nature of the nucleophile are the most important factors.
D)The nucleophile and leaving group are both important in S_N2 reactions, while for the S_N1 reactions the leaving group and the structure of the substrate are very significant.
E)The nucleophile is not important for S_N2 reactions, but the structure of the substrate is very important; for S_N1 reactions the opposite is true.

Question 23

Which of the following statements is TRUE?

A)The S_N2 mechanism does not have any intermediates and has only one transition state.
B)Tertiary alkylchlorides are the best substrates for S_N2 reactions.
C)Only the strength of the nucleophile is important for S_N2 reactions, not the nature of the leaving group.
D)S_N1 reactions have a carbanion as an intermediate.
E)S_N2 reactions result in the racemic product if we start from one enantiomer of a chiral substrate

Question 24

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

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

Question 25

Determine the products of the following reaction:

A)
B)
C)
D)
E)

Question 26

Which of the following statements is TRUE?

A)Elimination reactions proceed via either an E1 mechanism, which is a one-step mechanism, or an E2 mechanism, which is a two-step mechanism.
B)The E1 mechanism is somewhat similar to the S_N1 mechanism: they both start with a dissociation step in which a carbocation is formed.
C)Primary alcohols and alkylhalides are very likely to react via an E1 mechanism because they produce stable carbocations.
D)The strength of base used in elimination reactions is not important for the E2 mechanism because the base contributes only to the second step of the E2 mechanism.
E)E2 elimination reactions can occur at primary carbon centres but not at secondary and tertiary carbon atoms.

Question 27

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

A)
B)
C)
D)
E)

Question 28

Which of the following statements is TRUE?

A)H-X molecules add across C=C bonds with retention of absolute configuration.
B)The addition of H-X molecules to alkenes and alkynes is a one-step mechanism.
C)The rate of H-X addition depends strongly on the nature of the leaving group.
D)According to Markovnikov's rule, the hydrogen cation adds to the C=C bond in such a way as to generate the most stable carbocation.
E)The hydrogen cation adds to the more substituted carbon atom of the C=C bond, a fact known as the Markovnikov's rule.

Question 29

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

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

Question 30

Which of the following statements is TRUE?

A)The slow step in an S_N1 mechanism is the dissociation step, which produces a carbanion and a leaving group.
B)In an S_N1 mechanism, during the second step the nucleophile attacks the carbocation formed in the first step.
C)Primary alkylhalides are the best substrates for S_N1 reactions.
D)The hydroxyl (OH^-)group is an excellent leaving group in S_N1 reactions.
E)During S_N1 reactions the absolute configuration of the substrate is retained in the product.

Question 31

Which of the following statements is TRUE?

A)Elimination reactions take place with the retention of the absolute configuration.
B)The most common substrates in elimination reactions are ketones and amines.
C)A dehydration reaction produces an alkane and one equivalent of water.
D)The major product in an elimination reaction is the less substituted alkene.
E)A dehydrohalogenation reaction requires the presence of a strong base and heat.

Question 32

What is the product for the dehydration of CH₃CH₂CH₂OH?

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

Question 33

Predict the correct mechanism and product for the following reaction:

A)S_N1 mechanism, the product is
B)S_N2 mechanism, the product is
C)S_N2 mechanism, the product is
D)S_N1 mechanism, the product is
E)E1 mechanism, the product is

Question 34

Which of the following is a balanced chemical equation that represents the reaction of 3-ethyl-2-methylhexane with Br₂?

A)C₇H₁₄ + Br₂ → C₇H₁₂Br + HBr
B)C₉H₂₀ + Br₂ → C₉H₁₉Br + HBr
C)C₆H₁₂ + Br₂ → C₆H₁₀Br₂ + H₂
D)C₉H₁₈ + Br₂ → C₉H₁₆Br₂ + H₂
E)C₆H₁₂ + Br₂ → C₆H₁₁Br + HBr

Question 35

Which of the following statements is TRUE?

A)Dehydration is an example of a 1,2-elimination reaction in which an alcohol loses one water molecule, forming an alkene.
B)Dehydrohalogenation is an example of a 1,2 elimination reaction in which an organic molecule loses one water molecule and a halogen atom to produce an alkyne.
C)There is only one possible mechanistic pathway for an elimination reaction, called the E1 mechanism.
D)1,2-elimination reactions are frequently in competition with addition reactions.
E)Dehydration and dehydrohalogenation are two distinct steps in every 1,2-elimination reaction.

Question 36

Which of the following statements is TRUE?

A)Alkenes are as unreactive as alkanes.
B)Electrophilic addition reactions proceed via either an E1 or E2 mechanism.
C)The first step of an H-X electrophilic addition is the formation of a carbanion.
D)Carbon-carbon double bonds are electron rich and are nucleophilic.
E)During the addition of an H-X molecule, the H atom behaves as a nucleophile while the X atom behaves as an electrophile.

Question 37

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

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 38

Determine the products of the following reaction:

A)
B)
C)
D)
E)

Question 39

Identify the major product in the following reaction:

A)
B)
C)
D)
E)

Question 40

Which of the following statements is TRUE?

A)In nucleophilic substitution reactions at a saturated carbon atom, a carbon with a positive charge behaves as a nucleophile.
B)Nucleophilic substitution reactions at a saturated carbon atom can follow one of three mechanisms: S_N1, S_N2, and S_N3.
C)A carbon atom with a partial positive charge can react with a nucleophile, a molecule, or ion that has a lone pair of electrons.
D)Alkanes are an example of saturated organic compounds that easily participate in nucleophilic substitution reactions at a saturated carbon atom.
E)In nucleophilic substitution reactions at a saturated carbon atom, the replaced group is called an electrophile.

Question 41

Complete and balance the following complete hydrogenation reaction: CH₃CH₂C CCH₃ + 2H₂ → ?

A)CH₃CH₂C CCH₃ + 3H₂ → CH₃CH₂CH₃ + CH₃CH₃
B)CH₃CH₂C CCH₃ + 2H₂ → CH₃CH₂CH₂CH₂CH₃
C)CH₃CH₂C CCH₃ + 6H₂ → 5CH₄
D)2CH₃CH₂C CCH₃ + 2H₂ → CH₃CH₂CH₂CH₂CH₂CH₂CH₂CH₂CH₂CH₃
E)CH₃CH₂C CCH₃ + 2H₂ → CH₃CH₂CH₂
CH₂CH₃

Question 42

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

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 43

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

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 44

What is the product obtained after a reaction between an aldehyde and Grignard reagent is worked-up with dilute acid?

A)a ketone
B)a primary alcohol
C)a secondary alcohol
D)a tertiary alcohol
E)a carboxylic acid

Question 45

Which of the following statements is TRUE?

A)Addition is the predominant reaction observed in acyl compounds.
B)Acyl chlorides are the least reactive of all acyl compounds, while amides are the most.
C)Fischer esterification is the reaction between carboxylic acids with alcohols to produce esters.
D)Fischer esterification is catalyzed by a strong base.
E)Transesterification is a reaction in which an ester group is transferred from one organic group to another.

Question 46

What is transesterification?

A)Transesterification is a reaction that increases the oxidation number of carbon in esters.
B)An acid-catalyzed conversion of one ester to another is called transesterification.
C)Transesterification is a reaction in which the starting ester is transformed into any other organic family.
D)An interconversion reaction sequence (carboxylic acid)→ (ester)→ (carbocylic acid)is called transesterification.
E)A reaction that produces more reactive acyl compounds (such as acyl chlorides)from esters is called transesterification.

Question 47

Determine the product of the following reaction:

A)
B)
C)
D)
E)

Question 48

What are the correct products of the following reaction performed in the presence of an acid? C₃H₇COOH + C₂H₅OH →

A)C₃H₇COOC₂H₅ + H₂O
B)C₃H₇COC₂H₅ + H₂O + 1/2O₂
C)C₃H₇C(OH)OC₂H₅ + H₃O⁺
D)C₃H₇OH + HOOCC₂H₅ + H₃O⁺
E)C₃H₇C(=O)-O-O-C₂H₅ + H₂O

Question 49

Which of the following compounds is a Grignard reagent?

A)(C₂H₅)₂Mg
B)LiC₄H₉
C)CH₃Mg(OH)
D)CH₃CH₂MgBr
E)CH₃MgOCH₃

Question 50

Which of the following is the product of the following reaction?

A)
B)
C)
D)
E)

Question 51

Determine the product(s)of the following reaction:

A)
B)
C)
D)
E)

Question 52

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

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 53

What is a hemiacetal?

A)A hemiacetal, prepared from an alcohol and an aldehyde, is a compound that contains both OH and OR groups on the same carbon.
B)Compounds prepared from ketones and alcohols and with OH and OR groups on the same carbon are known as hemiacetals.
C)A hemiacetal is a product of acetyl group hydrolysis; it contains a COOH group.
D)A hemiacetal is formed from alcohols and acetic acid; a hemiacetal has both acetyl and OH groups on the same carbon atom.
E)A hemiacetal, formed from an aldehyde and an alcohol, has OH and aldehyde groups on adjacent carbon atoms in its structure.

Question 54

Which of the following is the balanced chemical equation for the addition of HBr to CH₂=CHCH₂CH₃?

A)CH₂=CHCH₂CH₃ + HBr → CH₂BrCH₂CH₂CH₃
B)CH₂=CHCH₂CH₃ + 2HBr → 2CH₂BrCH₃
C)CH₂=CHCH₂CH₃ + 2HBr → CH₃Br + CH₂BrCH₂CH₃
D)CH₂=CHCH₂CH₃ + 4HBr → 4CH₃Br
E)CH₂=CHCH₂CH₃ + HBr → CH₃CHBrCH₂CH₃

Question 55

What is the product obtained after a reaction between a ketone and Grignard reagent is worked-up with dilute acid?

A)an aldehyde
B)a primary alcohol
C)a secondary alcohol
D)a tertiary alcohol
E)a carboxylic acid

Question 56

What is the correct order of increasing reactivity among acyl groups?

A)acyl chloride < acid anhydride < carboxylic acid < amide
B)acyl chloride < carboxylic acid < acid anhydride < amide
C)acyl chloride < amide < carboxylic acid < acid anhydride
D)amide < carboxylic acid < acid anhydride < acyl chloride
E)amide < acyl chloride < acid anhydride < carboxylic acid

Question 57

What is a hemiketal?

A)A hemiketal, prepared from an alcohol and an aldehyde, is a compound that contains both OH and OR groups on the same carbon.
B)Compounds prepared from ketones and alcohols and with OH and OR groups on the same carbon are known as hemiketals.
C)A hemiketal is a product of acetyl group hydrolysis; it contains a COOH functional group.
D)A hemiketal is formed from alcohols and acetic acid; a hemiacetal has both acetyl and OH groups on the same carbon atom.
E)A hemiketal, formed from a ketone and an alcohol, has OH and keto groups on adjacent carbon atoms in its structure.

Question 58

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

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

Question 59

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

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

Question 60

Which of the following is the balanced chemical equation for the catalytic hydrogenation (addition of H₂)to CH₃CH=CHCH₃?

A)CH₃CH=CHCH₃ + 2H₂ → 2CH₃CH₃
B)CH₃CH=CHCH₃ + 3H₂ → CH₃CH₃ + 2 CH₄
C)CH₃CH=CHCH₃ + 2H₂ → CH₃CH₂CH₃ + CH₄
D)CH₃CH=CHCH₃ + H₂ → CH₃CH₂CH₂CH₃
E)CH₃CH=CHCH₃ + 4H₂ → 4CH₄

Question 61

Predict the products of the following reaction:

A)
B)
C)
D)
E)

Question 62

What are polymers?

A)Polymers are long, chain-like molecules composed of small, repeating units called monomers.
B)Polymers are long, chain-like molecules composed of small, repeating units called copolymers.
C)Polymers are long, chain-like molecules without fixed composition or structure, commonly of low molecular weight.
D)Polymers are long, chain-like molecules formed when smaller units, monomers, crystalize together from solution.
E)Polymers are long, chain-like molecules composed of small, repeating units called oligomers.

Question 63

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

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 64

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

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 65

Determine the products of the following reaction: Benzene + CH₃CH₂Cl ?

A)ethylbenzene and HCl
B)1,2-dimethylbenzene and H₂
C)chlorobenzene and CH₃CH₂Al
D)chlorobenzene and CH₃CH₃
E)1,4-diethylbenzene and Cl₂

Question 66

Which of the following statements is TRUE?

A)During the electrophilic aromatic substitutions, the resonance stabilized carbocation reacts with a base to give the addition product.
B)Aromatic compounds are very reactive because they contain more than one C=C double bond in their structure.
C)The rate-determining (slow)step of electrophilic aromatic substitutions is the deprotonation of the carbocation intermediate.
D)Unlike alkenes, aromatic compounds almost always prefer electrophilic substitution over electrophilic addition.
E)During the electrophilic aromatic substitution a Bronsted or Lewis acid is required to generate the nucleophile from an aromatic substrate.

Question 67

What are addition polymers?

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 68

What type of polymers are polyamides?

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 69

What are the correct products of the following reaction performed in the presence of an acid? C₃H₇COOCH₃ + C₂H₅OH →

A)C₃H₇COOC₂H₅ + CH₃OH
B)CH₃COOC₂H₅ + C₃H₇OH
C)C₃H₇COC₂H₅ + CH₃COOH
D)C₃H₇OH + C₂H₅COOCH₃ + H₃O⁺
E)C₃H₇CH(OCH₃)(OC₂H₅)+ H₂O

Question 70

Which of the following properties is typical for most polymers?

A)high reactivity
B)durability
C)softness
D)soluble in water
E)high toxicity

Question 71

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

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 72

Which combination of reagents would you use to brominate an aromatic compound?

A)Br₂ and FeCl₃
B)HBr and H₂SO₄
C)Br₂ and FeBr₃
D)HBrO and FeBr₃
E)HBr and HNO₃

Question 73

Determine the products of the following reaction: Benzene + Br₂ ?

A)1,2-dibromobenzene and H₂
B)1,4-dibromobenzene and HBr
C)ferrobenzene and H₂
D)perbromobenzene and HBr
E)bromobenzene and HBr

Question 74

Identify reagents A and B required for the following transformation of acyl groups:

A)A = (COCl)₂; B = C₂H₅CHO
B)A = (COCl)₂; B = C₂H₅COOH
C)A = HCl; B = C₂H₅COOH
D)A = (COCl)₂; B = C₂H₅-CH₂OH
E)A = HCl; B = C₂H₅CHO

Question 75

Which of the following is a compound that is acid anhydride?

A)
B)
C)
D)
E)

Question 76

Which pair of compounds would react to produce a polymer?

A)an acid and a diol
B)a diacid and an alcohol
C)a diacid and a diol
D)an alcohol and an acid
E)a diacid and a diketone

Question 77

Which combination of reagents would you use to prepare chlorobenzene (C₆H₅Cl)from benzene (C₆H₆)?

A)Cl₂ and FeBr₃
B)HCl and H₂SO₄
C)Cl₂ and FeCl₃
D)HClO and FeCl₃
E)HCl and HNO₃

Question 78

Identify the organic product for the following reaction. CH₃CH₂COOH + CH₃CH₂CH₂NH₂

A)CH₃CH₂NHCH₂CH₂CH₃
B)CH₃CH₂CON(CH₂CH₂CH₃)₂
C)CH₃CH₂CH₂CONHCH₂CH₃
D)CH₃CH₂CONHCH₂CH₂CH₃
E)CH₃CH₂N(CH₂CH₂CH₃)₂

Question 79

Predict the products of the following reaction: C₅H₁₁COOH + (COCl)₂ →

A)C₅H₁₁Cl + HCl + CO + 2CO₂
B)C₅H₁₁COCl + H₂O+ COCl + CO₂
C)C₅H₁₁COCl₂ + 2H₂CO₃
D)C₅H₁₁COCl + HCl + CO + CO₂
E)C₅H₁₁COCl + HCl + (CO)₂

Question 80

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

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