Chem 122

b.C2H5Cl
which of the following is an organic compound?
a. MgCO3
b. C2H5Cl
c. CO
d. NaCN
b. 3
Using IUPAC rules for naming, if the parent compound is pentane, an ethyl group could be attached to carbon:
a. 1
b. 3
c. 2
d. 4
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d. C5H12, C5H12, C5H12
There are three 5-carbon alkane constitutional isomers. Their molecular formulas are, respectively,
a. C5H11, C5H12, C5H13
b. C5H10, C5H12, C5H14
c. C5H12, C5H13, C5H14
d. C5H12, C5H12, C5H12
c. three
How many constitutional isomers can pentane have?
a. five
b. two
c. three
d. six
b. C4H10
Cyclobutane has the following molecular formula?
a. C3H8
b. C4H8
c. C4H10
d. C4H6
d. 2-methylpentane
Which of the following is an isomer of hexane?
a. methylcyclopentane
b. 2-methylhexane
c. 3-ethylpentane
d. 2-methylpentane
d. 1-ethyl-2-methylcyclopentane
Which of the following compounds form cis-trans isomers?
a. 2,3-dimethylpentane
b. 2,2-dimethylpentane
c. 2,2-dimethylcyclopentane
d. 1-ethyl-2-methylcyclopentane
a. Trichloromethane
Another name for chloroform is:
a. Trichloromethane
b. dichloromethane
c. Methylene chloride
d. Carbon tetrachloride
d. Same melting point and boiling point
Which of the following statements concerning saturated hydrocarbons isomers is incorrect?
a. Same number of hydrogen atoms in a molecule
b. Same number of carbon atoms
c. Same total number of atoms
d. Same melting point and boiling point
e. No correct response
a. CH3-CH2-CH3
Which of the following is a correct alkane structural formula?
a. CH3-CH2-CH3
b. CH3-CH3-CH2
c. CH2-CH2-CH2
d. CH2-CH3-CH2
d. 1
How many of the numerous seven carbon alkane constitutional isomers are continuous-chain alkanes?
a. 2
b. 4
c. 3
d. 1
e. no correct response
c. eight
How many carbon atoms are present in the alkane whose IUPAC name is 2,2,4-trimethylpentane?
a. five
b. seven
c. eight
d. nine
c. two less hydrogen atoms.
When the molecular formulas for cyclic and noncyclic alkanes with the same number of carbon atoms are compared, it is always found that the cycloalkane has
a. two more hydrogen atoms.
b. the same number of hydrogen atoms.
c. two less hydrogen atoms.
d. four less hydrogen atoms.
c. tert-butyl chloride and 2-chloro-2-methylpropane
Which of the following is a correct pairing of common and IUPAC names for halogenated hydrocarbons?
a. ethyl chloride and dichloromethane
b. isopropyl chloride and 1-chloropropane
c. tert-butyl chloride and 2-chloro-2-methylpropane
d. more than one correct response
e. no correct response
c. Only one of the statements is true.
Characterize EACH of the three given statements as being TRUE or FALSE and then indicate the collective true-false status of the statements using the choices:
(1) Cis-trans isomers have the same molecular formula and also the same structural formula.
(2) Molecules of the compound 1,3-dichlorocyclohexane contain 12 hydrogen atoms.
(3) The product from the reaction of one molecule of ethane with one molecule of Br2 is 1,2-dibromoethane.
a. All three statements are true.
b. Two of the three statements are true.
c. Only one of the statements is true.
d. None of the statements is true.
a. are constitutional isomers
For the pair of compounds, select a correct characterization from the response list: pentane and 2, 2-Dimethylpropane.
a. are constitutional isomers
b. have the same number of carbon atoms but are not constitutional isomers
c. both exist in cis-trans forms
d. one but not the other exists in cis-trans forms
d. one but not the other exists in cis-trans forms
the pair of compounds, select a correct characterization from the response list: chlorocyclobutane and 1, 2-Dichlorocyclopropane.
a. are constitutional isomers
b. have the same number of carbon atoms but are not constitutional isomers
c. both exist in cis-trans forms
d. one but not the other exists in cis-trans forms
b. C3H7Cl
Which of the following compounds can have constitutional isomers?
a. CH3Cl
b. C3H7Cl
c. C3H8
d. C2H5Cl
e. none of these
a. Two single bonds and a double bond
. Which of the following meets the bonding requirements for carbon atoms
a. Two single bonds and a double bond b. A single bond and two double bonds
c. Three single bonds and a triple bond
d. A double bond and a triple bond
a. C6H12
From the response list, select the correct molecular formula for 1,2-dimethylcyclobutane.
a. C6H12 c. C8H16
b. C6H14 d. C8H18
b. have the same number of carbon atoms but are not constitutional isomers
For the pair of compounds, select a correct characterization from the response list: butane and cyclobutane.
a. are constitutional isomers
b. have the same number of carbon atoms but are not constitutional isomers
c. both exist in cis-trans forms
d. one but not the other exists in cis-trans forms
a. All three statements are true.
Characterize EACH of the three given statements as being TRUE or FALSE and then indicate the collective true-false status of the statements using the choices:
(1) IUPAC names for cycloalkanes that have one substituent do not have any numbers in them.
(2) Both propane and cyclopropane are gases at room temperature and pressure.
(3) Halogenation of an alkane is an example of a substitution reaction.
a. All three statements are true.
b. Two of the three statements are true.
c. Only one of the statements is true.
d. None of the statements is true.
b. Two of the three statements are true.
Characterize EACH of the three given statements as being TRUE or FALSE and then indicate the collective true-false status of the statements using the choices:
(1) Sixteen carbon atoms are present in the alkane 3-ethyl-4,5-dipropyloctane.
(2) Two three-carbon alkyl groups and three four-carbon alkyl groups exist.
(3) A condensed structural formula shows all atoms in a molecule but not all bonds in the molecule.
a.
All three statements are true.
b. Two of the three statements are true.
c. Only one of the statements is true.
d. None of the statements is true.
d. None of the statements is true.
Characterize EACH of the three given statements as being TRUE or FALSE and then indicate the collective true-false status of the statements using the choices:
(1) All halogenated hydrocarbons have densities that are greater than that of water.
(2) Substituents are present in some, but not all, branched chain alkane molecules.
(3) There are two four-carbon branched-chain alkane constitutional isomers.
a. All three statements are true.
b. Two of the three statements are true.
c. Only one of the statements is true.
d. None of the statements is true.
d. more than one correct response
Which of the following cycloalkanes or cycloalkane derivatives contains 10 hydrogen atoms?
a. methylcyclobutane
b. 1,2-dimethylcyclobutane
c. 1,2-dichlorocyclohexane
d. more than one correct response
e. no correct response
c. CnH2n-2
A cycloalkene having only one carbon-carbon double bond will have the general formula
a. CnH2n+2
b. CnH2n
c. CnH2n-2
d. CnH2n-4
b. 1,3-butadiene
The correct IUPAC name for CH2=CH-CH=CH2 is
a. 1,4-butene
b. 1,3-butadiene
c. 1,3-dibutene
d. 1,4-dibutene
b. 120
The bond angles associated with a carbon-carbon double bond in an alkene are
a. 18 c. 109
b. 120 d. 90
a. H2
Which of the following reactants can be used to convert an alkene to an alkane?
a. H2 c. HCl
b. Cl2 d. H2O
a. ethyne
Which of the following alkynes goes by the common name of acetylene?
a. ethyne
b. propyne
c. 1-butyne
d. 2-butyne
c. CH2=CH-CH3
Markovnikov’s rule is needed to predict the product in the reaction between HCl and
a. CH2=CH2
b. CH3-CH=CH-CH3
c. CH2=CH-CH3
d. CH3-CH3
c. 1,4-diisopropylbenzene
Another name for p-diisopropylbenzene is
a. 1,2-diisopropylbenzene
b. 1,3-diisopropylbenzene
c. 1,4-diisopropylbenzene
d. 1,5-diisopropylbenzene
b. It readily undergoes substitution reactions but not addition reactions.
Which of the following statements about the chemical properties of benzene is correct?
a. It readily undergoes both substitution reactions and addition reactions.
b. It readily undergoes substitution reactions but not addition reactions.
c. It readily undergoes addition reactions but not substitution reactions.
d. It does not undergo either substitution reactions or addition reactions.
b. β-carotene
The antioxidant substance that acts as a Vitamin A precursor is:
a. Limonene
b. β-carotene
c. Retinal
d. Menthol
c. CH3-CH2-CH=CH2; 3-butene
Which of the following alkenes is paired with an incorrect IUPAC name?
a. CH2=CH-CH2-CH3; 1-butene
b. CH3-CH=CH-CH3; 2-butene
c. CH3-CH2-CH=CH2; 3-butene
d. more than one correct response
e. no correct response
d. more than one correct response
Which of the following is an example of an alkenyl group?
a. ethenyl group
b. phenyl group
c. methylene group
d. more than one correct response
e. no correct response
d. more than one correct response
. Which of the following addition polymers contain only two elements?
a. polyethylene
b. Teflon
c. PVC
d. more than one correct response
e. no correct response
b. C6H6
Which of the following molecular formulas could not represent an alkene with one double bond?
a. C6H12
b. C6H6
c. C5H10
d. more than one correct response
e. no correct response
c. Five
How many mono-chloro isomers of 1-butene are possible?
a. Four
b. one
c. Five
d. three
e. no correct response
b. Cyclohexene
Which of the following compound would be the most likely to undergo an addition reaction with HCL?
a. Toluene
b. Cyclohexene
c. Benzene
d. Heptane
c. Naphthalene
Which of the following is a fused-ring aromatic compound?
a. terpene
b. isoprene
c. Naphthalene
d. xylene
e. toluene
c. C7H12
From the response list, select the correct molecular formula for 1,3-heptadiene.
a. C7H8 c. C7H12
b. C7H10 d. C7H14
a. allyl bromide
Which of the following compounds contains three carbon atoms?
a. allyl bromide
b. vinyl chloride
c. acetylene
d. more than one correct response
e. no correct response
c. 2-methyl-1-butene
Which of the following compounds does not have the formula C5H8?
a. 1-methylcyclobutene
b. 2-methyl-1-butyne
c. 2-methyl-1-butene
d. 1,3-pentadiene
a. alkylation
Which of the following reactions involving benzene require the presence of an AlCl3 catalyst?
a. alkylation
b. bromination
c. chlorination
d. more than one correct response
e. no correct response
b. 1,3-dichlorobenzene
Another name for meta-dichlorobenzene is:
a. 2,3-dichlorobenzene
b. 1,3-dichlorobenzene
c. 1,2-dichlorobenzene
d. 1,4-dichlorobenzene
e. no correct response
b. have the same number of carbon atoms but are not constitutional isomers
For the pair of compounds, select a correct characterization from the response list: cyclohexene and benzene.
a. are constitutional isomers
b. have the same number of carbon atoms but are not constitutional isomers
c. both exist as cis-trans isomers
d. one but not the other exists in cis-trans forms
b. dichlorinated hydrocarbon d.
For the following reaction situation, select a correct product characterization using the response list: 1,3-cyclohexadiene + one Cl2
a. monochlorinated hydrocarbon
b. dichlorinated hydrocarbon d.
c. trichlorinated hydrocarbon
d. tetrachlorinated hydrocarbon
a. polymer in which all attachments to the carbon chain are identical
For the following polymer, select a correct polymer characterization using the response list: Teflon.
a. polymer in which all attachments to the carbon chain are identical
b. polymer in which two different monomers are involved
c. polymer in which the monomer is a substituted diene
d. polymer in which the monomer is a monosubstituted ethene
a. dichlorobenzenes; 3 isomers
For which of the following types of substituted benzenes is the specified number of constitutional isomers correct?
a. dichlorobenzenes; 3 isomers
b. trichlorobenzenes; 4 isomers
c. tetrachlorobenzenes; 4 isomers
d. more than one correct response
e. no correct response
c. 1-bromo-2-chlorobenzene
Which of the following is a correct name according to IUPAC rules?
a. 2-methylbenzene
b. 1-chlorobenzene
c. 1-bromo-2-chlorobenzene
d. 2,4-dichlorobenzene
e. no correct response
b. CH3-CH=CH-CH2-CH3
Cis-trans isomerism is possible for which of the following alkenes?
a. CH2=CH-CH2-CH2-CH3
b. CH3-CH=CH-CH2-CH3
c. CH3-CH=CH2
d. CH2=CH-CH2-CH3
a. Polystyrene
Which of the following addition polymers contains only carbon and hydrogen?
a. Polystyrene
b. PVC
c. Teflon
d. Saran (copolymer)
c. 12
How many total atoms are present in a molecule of benzene?
a. 8 c. 12
b. 10 d. 14
a. one carbon atom and one oxygen atom
The simplest alcohol, from a structural standpoint, contains how many carbon atoms and how many oxygen atoms?
a. one carbon atom and one oxygen atom
b. one carbon atom and two oxygen atoms
c. two carbon atoms and one oxygen atom
d. two carbon atoms and two oxygen atoms
d. Ethanol can be produced by fermentation
. Which of the following statements concerning common alcohols is correct?
a. Wood alcohol and grain alcohol are the same substance.
b. Rubbing alcohol is pure ethyl alcohol.
c. Absolute alcohol is pure isopropanol.
d. Ethanol can be produced by fermentation.
b. ethylene glycol and glycerol
In which of the following pairs of alcohols do both members of the pair contain two or more hydroxyl groups?
a. 2-methyl-2-propanol and propylene glycol
b. ethylene glycol and glycerol
c. butyl alcohol and propylene glycol
d. butanol and tert-butyl alcohol
c. Hydrogen bonding occurs between alcohol molecules but not between alkane molecules.
Alcohols have higher boiling points than alkanes of similar molecular mass because:
a. Alcohols are ionic compounds and alkanes are covalent compounds.
b. Alkane molecules are polar and alcohol molecules are not.
c. Hydrogen bonding occurs between alcohol molecules but not between alkane molecules.
d. Alcohols are acidic and alkanes are not.
c. three
How many hydrogen bonds can form between a methanol molecule and other methanol molecules?
a. one c. three
b. two d. four
b. alkene
Intramolecular dehydration of an alcohol produces a(n)
a. alkane c. ether
b. alkene d. thiol
a. thiols
The sulfhydryl functional group is found in
a. thiols
b. disulfides
c. both thiols and disulfides
d. neither thiols nor disulfides
b. aldehyde
For the following set of reactants and reaction conditions, select a correct product characterization from the response list: primary alcohol, mild oxidizing agent.
a. alkene c. ether
b. aldehyde d. ketone
a. alkene
For the following set of reactants and reaction conditions, select a correct product characterization from the response list: secondary alcohol, sulfuric acid 140C.
a. alkene c. ether
b. aldehyde d. ketone
b. have the same number of carbon atoms and the same number of oxygen atoms but are not constitutional isomers
For the following pair of compounds, select a correct structural characterization from the response list: cyclohexanol and phenol.
a. are constitutional isomers
b. have the same number of carbon atoms and the same number of oxygen atoms but are not constitutional isomers
c. have the same number of carbon atoms but a different number of oxygen atoms
d. have the same number of oxygen atoms but a different number of carbon atoms
a. thioether
Match the following structural formula with compound types in the response list: CH3-CH2-S-CH3.
a. thioether
b. disulfide
c. diol
d. thiol
c. diol
Match the following structural formula with compound types in the response list: HO-CH2-CH2-OH.
a. thioether
b. disulfide
c. diol
d. thiol
a. drinking alcohol
Match the following alcohol characteristic(s) with names in the response list: contains two carbons and one -OH group.
a. drinking alcohol
b. rubbing alcohol
c. glycerin
d. ethylene glycol
a. C4H10O
For the following hydrocarbon derivative, select from the response list the correct molecular formula: 2-methyl-1-propanol.
a. C4H10O
b. C4H12O
c. C4H10O2
d. C4H12O2
a. C4H10O
For the following hydrocarbon derivative, select from the response list the correct molecular formula: tertiary-butyl alcohol.
a. C4H10O
b. C4H12O
c. C4H10O2
d. C4H12O2
b. Two of the three statements are true.
Characterize EACH of the three given statements as being TRUE or FALSE and then indicate the collective true-false status of the statements using the choices:
(1) Isopropyl alcohol and 1-propanol are two names for the same compound.
(2) Ether molecules cannot hydrogen bond to one another.
(3) Alcohol molecules have both polar and nonpolar character.
a. All three statements are true.
b. Two of the three statements are true.
c. Only one of the statements is true.
d. None of the statements is true.
d. more than one correct response
Which of the following compounds contains two oxygen atoms?
a. 1,3-dimethoxybenzene
b.methoxycyclohexane
c. 2-ethoxy-1-propanol
d. more than one correct response
e. no correct response
b. a cyclic ether
Which of the following general types of compounds is always a heterocyclic compound?
a. a substituted phenol
b. a cyclic ether
c. a cyclic compound with both hydroxy and alkoxy substituents on the ring
d. more than one correct response
e. no correct response
e. no correct response
Which of the following pairings of names and general formulas is incorrect?
a. dithiol and HS-R-SH
b. thioether and R-S-R
c. disulfide and R-S-SR
d. more than one correct response
e. no correct response
c. ethyl isopropyl ether and 2-ethoxypropane
In which of the following pairs of names do both names represent the same ether?
a. diethyl ether and 1,2-diethoxyethane
b. methyl isopropyl ether and 1-methoxypropane
c. ethyl isopropyl ether and 2-ethoxypropane
d. more than one correct response
e. no correct response
a. hydrocarbon groups
Ethers may be viewed as derivatives of water in which both hydrogen atoms have been replaced with
a. hydrocarbon groups
b. hydroxyl groups e. no correct response
c. alkoxy groups
Ethers may be viewed as derivatives of water in which both hydrogen atoms have been replaced with
a. hydrocarbon groups
b. hydroxyl groups
c. alkoxy groups
d. more than one correct response
e. no correct response
d. more than one correct response
Which of the following is an incorrect IUPAC name for a phenol derivative?
a. 1-chlorophenol b. 2,5-dibromophenol
c. 3-methylphenol
d. more than one correct response
e. no correct response
c. tertiary alcohol; carboxylic acid
For which of the following alcohol oxidations is the listed oxidation product incorrect?
a. primary alcohol; aldehyde
b. secondary alcohol; ketone
c. tertiary alcohol; carboxylic acid
d. more than one correct response
e. no correct response
e. no correct response
For which of the following intramolecular alcohol dehydrations is Zaitsev’s rule needed to predict the structure of the alkene formed in the greatest amount?
a. 1-propanol
b. 2-propanol
c. 1-butanol
d. more than one correct response
e. no correct response
c. 1 alcohol, 140C
Which of the following conditions for an alcohol dehydration reaction with H2SO4 as the catalyst will produce an ether?
a. 1 alcohol, 180C
b. 2 alcohol, 140C
c. 1 alcohol, 140C
d. more than one correct response
e. no correct response
c. glycerol; three carbon atoms and three OH groups
Which of the following is a correct name-composition pairing for an alcohol?
a. 2-methylpentanol; six carbon atoms and two OH groups
b. ethylene glycol; three carbon atoms and two OH groups
c. glycerol; three carbon atoms and three OH groups
d. more than one correct response
e. no correct response
b. is attached to two other carbon atoms.
In a secondary alcohol, the hydroxyl-bearing carbon atom
a. is always involved in a double bond.
b. is attached to two other carbon atoms.
c. cannot be bonded to hydrogen atoms.
d. more than one correct response
e. no correct response
b. base
hydrolysis of an amide by what produces a carboxylic salt and ammonia?
a. acid
b. base
c. water (with a catalyst)
a. a primary amine
which of the following has the most extensive inter molecular hydrogen bonding?
a. a primary amine
b. a secondary amine
c a tertiary amine
a. conjugate acid
the cation that forms when an amine ionizes in water is a:
a. conjugate acid
b. conjugate base
b. dipole-dipole interactions
a tertiary amine has what type of intermolecular forces of attraction?
a. h-bonding
b. dipole-dipole interactions
c. london forces
a. aromatic amines
which of the following are the weakest bases?
a. aromatic amines
b. ammonia
c. secondary amines
c. they both contain nitrogen
which of the following is true of both amines and amides?
a. they smell good
b. they are both bases
c. they both contain nitrogen
d. all of the above are true of both amines and amides
a. amines, alcohols, amides
which of the following lists substances from lowest to highest priority?
a. amines, alcohols, amides
b. alcohols, amines, amides
c. amides, alcohols, amines
d. amines, amides, alcohols
a. N-methylethanamine
the IUPAC name for the following compound is: CH3CH2NHCH3
a. N-methylethanamine
b. ethylmethylamine
c. propionamine
d. butanamine
c. acetamide
the common name for the following compound is: CH3-C=O-NH2
a. ethanamide
b. formamide
c. acetamide
d. methanamide
c. formic acid, acetic acid
which of the following dose not correctly pain an IUPAC name with a common name?
a. methanoic acid, formic acid
b. ethanoate, acetate
c. formic acid, acetic acid
d. butanoate, butyrate
a. acetaldehyde
when acetic acid is reduced to ethanol, what is the intermediate oxidation product?
a. acetaldehyde
b. acetate
c. formate
d. ethanoic acid
a. alkanes, esters, carboxylic acids
which of the following ranks compounds from lowest to highest boiling points?
a. alkanes, esters, carboxylic acids
b. carboxylic acids, esters, alkanes
c. esters, carboxylic acids, alkanes
d. carboxylic acids, alkanes, esters
d. all of the above are true regarding the reaction of vegetable oil and concentrated NaOH
the reaction of vegetable oil and concentrated NaOH:
a. forms carboxylate salts
b. is called a soaponification
c. produces soap
d. all of the above are true regarding the reaction of vegetable oil and concentrated NaOH
a. aldehydes
which of the following are not carboxylic acid derivatives?
a. aldehydes
b. esters
c. amides
d. acid anhydrides
c. two carboxylic acids
the reaction of an acid anhydride and water would yeild:
a. a carboxylic acid and an ester
b. an ester and HCL
c. two carboxylic acids
d. an amide and HCL
d. a 3 amine
which of the following would not react with an acid anhydride to form an amide as one of the products?
a. ammonia
b. a 1 amine
c. a 2 amine
d. a 3 amine
a. soaponification with a base
which of the following is not a chemical reaction of carboxylic acids?
a. soaponification with a base
b. esterification with an alcohol
c. ionization in water
d. neutralization with a base
b. dipole-dipole interactions
the type of intermolecular forces of attraction between ester molecules are:
a. london forces
b. dipole-dipole interactions
c. hydrogen bonding
d. ionic
d. both a and b
when acetic acid reacts with sodium hydroxide the product is
a. a salt
b. an ionic compound
c. a weak base
d. both a and b
c. hydrogen bonding
the type of intermolecular forces of attraction between carboxylic acids are:
a. london forces
b. dipole-dipole interactions
c. hydrogen bonding
d. ionic
b. an ester and HCl
reaction of an acid chloride and an alcohol forms:
a. a carboxylic acid and an ester
b. an ester and HCl
c. two carboxylic acids
d. an amide and HCl
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