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Chemistry
Q:
Which one of the following behaves like a base?
A) CH3CONHCH3
B) (CH3)2NH
C) C2H5CONHCH3
D) All of the above are bases.
Q:
What is the name of the product formed by the reaction of butanoic acid with methylamine?
A) N-methylbutamide
B) N-methylbutanamide
C) pentanone
D) pentyl amine
Q:
The reaction of an amine and a carboxylic acid produces what kind of compound?
A) alcohol
B) amide
C) ester
D) ketone
Q:
Which statement about the differences between an amine and an amide is not correct?
A) Amides act as proton acceptors while amines do not.
B) Amines are basic and amides are neutral.
C) Amines form ammonium salts when treated with acid; amides do not.
D) The lone pair of electrons on amides is held more tightly than the lone pair on an amine.
Q:
Which ester below formed propanoic acid and isopropyl alcohol by hydrolysis reaction with water?
A) B) C) D)
Q:
What are the products of a hydrolysis reaction of an ester?
A) an alcohol and an alkane
B) a carboxylic acid and an alcohol
C) an ether and an alkene
D) a ketone and an aldehyde
Q:
When propyl ethanoate is hydrolyzed the products are
A) 1-propanol and acetic acid.
B) propanone and ethanol.
C) 2-propanol and propanoic acid.
D) methanal and ethanol.
Q:
What is the name of the product formed by the reaction of propanoic acid with ethanol?
A) ethyl propanoate
B) pentanone
C) pentyl ester
D) ethylpropylketone
Q:
What type of compound is formed when a carboxylic acid reacts with an alcohol?
A) an aldehyde
B) an amide
C) an aromatic
D) an ester
Q:
How many grams of Ca(OH)2 are needed to neutralize 5.00 g of 3-methylbutanoic acid?
A) 1.81 g
B) 2.10 g
C) 3.63 g
D) 4.20 g
Q:
Which one of the following behaves like an acid?
A) CH3COCH3
B) (CH3)2NH
C) C2H5OH
D) C2H5COOH
Q:
Which of the following pairs have the most similar chemical properties?
A) alkanes and carboxylic acids
B) alkenes and aromatics
C) amines and esters
D) ketones and aldehydes
Q:
Which one of the following does not contain a polar carbonyl group?
A) an amine
B) a carboxylic acid
C) an ester
D) a ketone
Q:
Which of the following does not contain a carbonyl group?
A) an alcohol
B) an aldehyde
C) an amide
D) an ester
Q:
Which of the following molecules is the most highly oxidized?
A) acetaldehyde
B) acetic acid
C) ethanol
D) 1, 2-ethanediol
Q:
What is the common name for the simplest ketone, propanone?
A) acetal
B) acetone
C) carbanone
D) formalin
Q:
The H-C-H bond angles in acetic acid, shown below, are closest to
O CH3C"OH
A) 90.
B) 109.5.
C) 120.
D) 180.
Q:
The C-C=O bond angle in acetic acid, shown below, is closest to
O CH3C"OH
A) 90.
B) 109.5.
C) 120.
D) 180.
Q:
The reaction of methylamine with HCl produces
A) methyl ammonium chloride.
B) dimethylamine and ammonium chloride.
C) methanol and ammonium chloride.
D) methanol and chloramine.
Q:
What is the common name for benzeneamine?
A) aniline
B) toluene
C) xylene
D) phenol
Q:
Which of the following is the most soluble in water?
A) trimethylammonium chloride
B) methane
C) trimethyl amine
D) dimethyl ether
Q:
What type of compound contains the -NH2 functional group?
A) alcohol
B) amine
C) carboxylic acid
D) ether
Q:
How many ether isomers have the formula C4H10O?
A) 2
B) 3
C) 4
D) 5
Q:
Which of the following compounds is most soluble in water?
A) decanol
B) dimethyl ether
C) ethane
D) ethanol
Q:
"Glycerol" is the common name for
A) ethanol.
B) 2-propanol.
C) 1, 2-ethanediol.
D) 1, 2, 3-propanetriol.
Q:
"Rubbing alcohol" is the common name for
A) methanol.
B) ethanol.
C) 2-propanol.
D) 1, 2-ethanediol.
Q:
"Wood alcohol" is the common name for
A) methanol.
B) ethanol.
C) 2-propanol.
D) 1, 2-ethanediol.
Q:
What is the proper name for (CH3)2CHCH(OH)CH3?
A) isopropanol
B) isopentanol
C) 2-methylpentanol
D) 3-methyl-2-butanol
Q:
The boiling point of 1-propanol should be ________ than the boiling point of methyl ethyl ether.
A) higher than
B) lower than
C) the same as
D) cannot be determined
Q:
Which of the following statements about amines is not correct? Amines are
A) bases (proton acceptors).
B) converted to ammonium salts by reaction with HCl.
C) organic derivatives of ammonia.
D) very water soluble.
Q:
Which structure is para-dibromobenzene? A) structure I
B) structure II
C) structure III
D) structure IV
Q:
Which structure is meta-dibromobenzene? A) structure I
B) structure II
C) structure III
D) structure IV
Q:
Which structures represent the same dibromobenzene compound? A) I and IV
B) II and III
C) I, II, and III
D) All structures are identical.
Q:
Which reaction is not characteristic of aromatic compounds?
A) addition
B) halogenation
C) nitration
D) sulfonation
Q:
What type of hybridization does a carbon atom have in a six-membered aromatic ring?
A) sp
B) sp2
C) sp3
D) sp3d
Q:
Which of the following statements about benzene is true? Benzene
A) contains 3 long bonds and 3 short bonds.
B) is a puckered, six-membered ring.
C) is unusually stable because of delocalized pi electrons.
D) readily undergoes addition reactions.
Q:
Which of the following statements about cycloalkanes is true?
A) The bonds in cyclopropane and cyclobutane are weaker than other cycloalkanes.
B) Cycloalkanes are also called "acyclic" compounds.
C) Cyclopropane has 109 bond angles.
D) Most cycloalkanes are planar molecules.
Q:
Which compound is not an isomer of the other three?
A) cyclohexane
B) 1, 2-dimethylcyclobutane
C) 1, 2-dimethylcyclopropane
D) methylcyclopentane
Q:
What are the C-C-C bond angles in cyclopropane and cyclohexane?A) 60 in both moleculesB) 60 in cyclopropane and 109.5 in cyclohexaneC) 60 in cyclopropane and 120 in cyclohexaneD) 109.5 in both molecules
Q:
A molecule that has the molecular formula is
A) 3-methlycyclopentene.
B) cyclohexane.
C) hexane.
D) 2-hexene.
Q:
Which name is not correct?
A) 1, 1 dimethylcyclobutane
B) 1, 2-dimethylcyclobutane
C) 1, 3-dimethylcyclohexane
D) 1, 4-dimethylcyclopentane
Q:
The cycloalkane represented by a square is called ________ and has the molecular formula ________.
A) cyclopropane, C3H6
B) cyclopropane, C3H8
C) cyclobutane, C4H4
D) cyclobutane, C4H8
Q:
In the addition reaction of water and propene in an acidic solution, the product is
A) an alcohol.
B) a carboxylic acid.
C) an ether.
D) a ketone.
Q:
What is the product when pure water and ethene are mixed?
A) an alcohol
B) a carboxylic acid
C) an ether
D) no reaction occurs
Q:
Name the product obtained from the addition of bromine to 3-methyl-1-butene.
A) 1, 1-dibromobutane
B) 1, 2-dibromo-3-methylbutane
C) 1, 2-dibromopentane
D) trans-1, 2-dibromobutene
Q:
Hydrogenation of vegetable oils converts them into what type of molecule?
A) esters
B) ethers
C) polymers
D) saturated fats
Q:
Name the product of hydrogenation of trans-2-pentene.
A) pentane
B) cis-2-pentene
C) trans-2-pentane
D) none of these
Q:
The most important synthetic chemical reactions that alkenes and alkynes undergo are called
A) addition reactions.
B) combustion reactions.
C) photochemical halogenation reactions.
D) substitution reactions.
Q:
Which compound will exhibit cis-trans isomerism?
A) 1, 2-dichloroethane
B) 1, 2-dichloroethene
C) dichloroethyne
D) ethylene
Q:
Which of the following is a correct name for an alkyne?
A) 3-methyl-2-pentyne
B) 5-methyl-3-pentyne
C) 2, 2-dimethyl-4-pentyne
D) 3, 3-dimethyl-1-pentyne
Q:
What is the name of the following structure? A) tert-butylethyne
B) 3, 3-dimethyl-1-pentyne
C) 3-ethyl-3-methyl-1-butyne
D) trans-ethylmethylbutyne
Q:
What is the name of the following structure? A) cis-1-ethyl-2-chloroethane
B) cis-1-chloro-1-butene
C) trans-1-chloro-1-butene
D) trans-1-chloro-2-ethylethane
Q:
Which of the following is trans-2-butene? (Only bonds are shown in the skeletal structures below; the carbon and hydrogen atoms are deleted.) A) structure a
B) structure b
C) structure c
D) none of these
Q:
Which of the following is not a geometric (cis-trans) isomer?
A) 1, 1-dichloro-1-butene
B) 1, 2-dichloro-1-butene
C) 2-butene
D) 2-chloro-2-butene
Q:
Which compound will have the largest dipole moment?
A) cis-1, 2-dichloroethylene
B) trans-1, 2-dichloroethylene
C) tetrabromoethylene
D) tetrachloroethylene
Q:
How many geometrical and structural isomers are there of butene?
A) 3
B) 4
C) 5
D) 6
Q:
Which one of the following molecules can rotate freely around its carbon-carbon bond?
A) acetylene
B) cyclopropane
C) ethane
D) ethylene
Q:
Which of the following statements about cis-trans isomers is not correct?
A) Conversion between cis- and trans-isomers occurs easily by rotation around the double bond.
B) In the trans- isomer, the groups of interest are on opposite sides across the double bond.
C) In the cis- isomer, the groups of interest are on the same side of the double bond.
D) There are no cis-trans isomers in alkynes.
Q:
Which of the molecules shown below are unsaturated?
(1) CH3CH2CH2CH(CH3)2
(2) CH3CH=CHCH(CH3)2
(3) HCCCH2CH(CH3)2
A) All are unsaturated.
B) Only (2) and (3) are unsaturated.
C) Only (2) is unsaturated.
D) Only (3) is unsaturated.
Q:
What is the molecular geometry around the carbon in (CH3)2C=CHCN indicated by the
asterisk (*)?
A) linear
B) trigonal planar
C) trigonal pyramidal
D) tetrahedral
Q:
Which compound is a saturated hydrocarbon?
A) benzene
B) cyclohexene
C) 2-methylpentane
D) propylene
Q:
What is the hybridization of the carbon in (CH3)2C=CHCN indicated by the asterisk (*)?
A) sp
B) sp2
C) sp3
D) dsp3
Q:
What class of hydrocarbons has the general formula CnH2n?
A) alkanes
B) alkenes and cycloalkanes
C) alkynes
D) aromatics
Q:
Which class of hydrocarbons has the general formula CnH2n+2?
A) alkanes
B) alkenes
C) alkynes
D) cylcloalkanes
Q:
The names of compounds with carbon-carbon double bonds contain the suffix
A) -ane.
B) -ene.
C) -yne.
D) -one.
Q:
Which name is not correct?
A) 2, 2-dimethylbutane
B) 2, 3-dimethylpentane
C) 2, 3, 3-trimethylbutane
D) 2, 3, 3-trimethylpentane
Q:
Which name is not correct?
A) 1, 2-dichloropentane
B) 2, 3-dimethylbutane
C) 2-ethylbutane
D) 4-propylheptane
Q:
Which of the following compounds is 5-ethyl-4-isopropyl-2-methylnonane?
A) B) C) D)
Q:
What is the IUPAC name for the following compound: A) 1, 3-dimethyl-1-ethylhexane
B) 4, 6-dimethyl-6-ethylhexane
C) 3, 5-dimethyloctane
D) sec-hexylbutane
Q:
What is the IUPAC name for the continuous carbon chain of C10H22?
A) decane
B) dipentane
C) tenalkane
D) tenane
Q:
What is the IUPAC name for the following compound? A) heptane
B) 3, 3-dimethylpentane
C) 2, 2-dimethyl-2-ethylpropane
D) 2, 2-diethylpropane
Q:
What is the name for the alkyl group: A) isobutyl
B) tert-butyl
C) tributyl
D) trimethyl
Q:
If the point of attachment to an alkane is by the middle carbon in a propyl group, the group is called
A) isopropyl.
B) n-propyl.
C) sec-propyl.
D) tert-propyl.
Q:
An alkyl group is named for the part of the alkane group that remains after a ________ is removed.
A) C atom
B) CH3 group
C) CH2 group
D) H atom
Q:
Which statement below is false concerning nomenclature rules for alkanes?
A) Carbon atoms are numbered starting with the atom farthest from the branching point.
B) Each branching group is assigned a number referring to its point of attachment in the parent chain.
C) The name of the alkane is written as a single word.
D) The parent name is taken from the longest continuous chain of carbon atoms.
Q:
The functional groups in the molecule below are
O O HCCH2 COCH3
A) alkane, aldehyde, and ester.
B) alkane, aldehyde, ketone, and ether.
C) alkane, carboxylic acid, and ester.
D) alkane, ketone, and ester.
Q:
Which one of the following compounds is an alcohol?
A) CH3OCH3
B) CH3COCH3
C) (CH3)2CHOH
D) CH3CO2H
Q:
The functional groups in the molecule below are
H2NCH2CO2H
A) alkane, amide, and carboxylic acid.
B) alkane, amine, and carboxylic acid.
C) alkane, amide, ketone, and alcohol.
D) alkane, amine, ketone, and alcohol.
Q:
Which functional group below represents an aldehyde?
A) B) C) D)
Q:
Which functional group below represents a ketone?
A) B) C) D)