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Chem II > ch 23 > Flashcards

ch 23 Flashcards

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1
Q

Which of the following structural formulas contains an error?

A

b

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2
Q

Which of the following is not an addition polymer?
polyvinyl chloride
nylon
teflon
styrofoam
polypropylene

A

b.

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3
Q

What is the correct systematic name for the following alkene?

2-ethyl-3-methyl-2-hexene
2-ethyl-3-methyl-1-pentene
4-ethyl-3-methyl-4-pentene
3-methyl-4-ethyl-4-pentene
octene

A

b.

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4
Q

Which of the following statements concerning hydrocarbons is/are CORRECT?
1. Coal is a source of many aromatic hydrocarbons.
2. Petroleum is subjected to a process known as cracking, where aromatic rings are cracked open to yield alkane chains.
3. The primary components of petroleum (prior to refining) are alkenes and alkynes.
1 only
2 only
3 only
1 and 3
1, 2, and 3

A

a

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5
Q

A saturated hydrocarbon is
a hydrocarbon that contains oxygen.
a compound in which one or more carbon atoms have double or triple bonds.
a compound in which all carbon atoms have four single bonds
a hydrocarbon that is dissolved in water.
a cycloalkane with five or more carbons.

A

c.

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6
Q

Which of the following is the monomer of Teflon?
CH2CH2
CF2CF2
CH2C(CN)2
CH2CHCN
CH2CHCH3

A

b.

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7
Q

Which of the following is the general formula of an alkane?
CnH2n-2
CnH2n+2
CnHn
CnH2n
Cn+2Hn

A

b.

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8
Q

What is the name of the given benzene derivative?

Dibenzene
1,2-dibenzene
Toluene
Naphthalene
Aniline

A

d

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9
Q

Amino acids polymerize in condensation reactions that result in the formation of an amide linkage (or peptide bond) between amino acid molecules. What dipeptide(s) may be formed in the reaction of glycine with phenylalanine?

1 only
2 only
3 only
4 only
1 and 4

A

not c or b. or a.

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10
Q

Which of the following is a geometric isomer of the structure given below?

A

e.

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11
Q

What is the name of the following compound?
trans-acetylene
cis-1,3-pentadiene
trans-2,4-pentadiene
cis-4-methyl-1,3-butadiene
cis-4-methyl-1,3-butene

A

not e. or d.

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12
Q

What is the molecular formula of a cyclic alkane with 5 carbon atoms?
C5 H12
C5 H8
C5 H14
C5 H10
C5 H5

A

d.

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13
Q

What are the two types of stereoisomers?
geometrical and optical
optical and positional
geometrical and positional
geometrical and functional group
chiral and optical

A

a.

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14
Q

Which of the following is an example of a hydrocarbon structural formula?

A

b.

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15
Q

Which of the following statements concerning isomers is/are correct?
1. Two types of stereoisomers exist: geometric isomers and optical isomers.
2. Optical isomers are molecules with nonsuperimposable mirror images.
3. Ethanol (CH3CH2OH) and dimethyl ether (CH3OCH3) are examples of geometric isomers.
1 only
2 only
3 only
1 and 2
1, 2, and 3

A

d.

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16
Q

Which of the following is a chiral molecule?
CH3CBr2Cl
CBrCl2I
CH3CHBrCH2CH3
(CH3)2CHCl
CH2BrI

A

c.

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17
Q

Cis-1,2-dichloroethylene and trans-1,2-dichloroethylene are examples of _____ isomers.

A

stereoisomer

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18
Q

Which of the following alkenes is capable of forming cis-trans isomers?

(CH3)2 = CH2

(CH3)2 = CHBr

CH3CH = CH2

CH3CH = CBr2

CHBr = CHD

A

e.

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19
Q

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

A

b.

20
Q

How many isomers exist for the following benzene derivative, C6H4ClBr?
2
3
4
5
none

A

b.

21
Q

Which of the following types of compounds must have an sp2-hybridized carbon center?
esters
ethers
cycloalkanes
amines
alcohols

A

a

22
Q

What is the name of the given molecule?

1-hexyne
2-ethynyl butane
2-ethyl-3-butyne
3-methyl-1-pentyne
3-methyl-4-pentyne

A

d.

23
Q

Which of the following is the correct formula for 2-methyl-1-butene?

A

a.

24
Q

Which one of the following hydrocarbons has cis and trans isomers?
hexane
1-pentene
2-methylpropane
2-ethylbutane
2-pentene

A

not c. or d or b.

25
Q

Which one of the following statements concerning isomers is INCORRECT?

A

not b. or a

26
Q

Which of the following alcohols is also called rubbing alcohol?
Ethylene glycol
Glycerol
Heptanol
Isopropyl alcohol
Methyl alcohol

A

d.

27
Q

Which set of functional groups are present in the molecule shown below?

pseudoephedrine

aromatic, alcohol, and amine
alkene, amide, and carboxylic acid
aromatic alcohol and amide
alkene, alcohol, and carboxylic acid
alkene, amine, and carboxylic acid

A

not b. or d.

28
Q

The functional group RCONR’ is characteristic of a(n) ____.
ether
ester
amide
aldehyde
ketone

A

c.

29
Q

Which of the following formulas represents an unsaturated hydrocarbon?

A

d.

30
Q

Which of the following statements about polymers is/are correct?
1. Polypropylene and polyethylene are high molecular weight alkenes.
2. Addition polymers must be made from monomers which have at least one double or triple bond somewhere in the molecule.
3. Condensation polymerization reactions produce small molecules, like H2O, as byproducts to the polymer formation.

A

d.

31
Q

Which of the following acids is found in grapes?
Tartaric acid
Acetic acid
Caproic acid
Uric acid
Oxalic acid

A

a.

32
Q

What is the name of the following benzene derivative?

1-chlorobenzoic acid
5-chloroanaline
1-acetate-1-chlorobenzene
5-chlorobenzoic acid
1,3-chlorocarboxylic benzene

A

a.

33
Q

CH3CH2CH2COOH is ____.
isobutyl alcohol
butyl alcohol
propionic acid
butanoic acid
oxalic acid

A

d

34
Q

How many isomers, both structural and geometric, have the molecular formula C5H12?

A

e.

35
Q

The N atom in an amide has _____ and bond angles of about _____.
sp hybridization; 180°
sp2 hybridization; 109°
sp2 hybridization; 120°
sp3 hybridization; 109°
sp3 hybridization; 120°

A

c.

36
Q

Four of the following compounds are structural isomers. Which one is not?

A

a.

37
Q

What is the structure of 3,4-dimethylhexane?

A

a.

38
Q

What is the name of the following compound?
CH3–(CH2)5 –CH3

Heptane
Pentane
Butane
Ethane
Hexane

A

a.

39
Q

What is the name of the given compound?

Pentanol
Cyclopentane
Cyclohexane
Cyclopentene
1,5-pentane

A

b.

40
Q

Which of the following functional groups does not contain an oxygen atom?

A

e.

41
Q

How many structures (i.e., unique isomers) exist for tribromobenzene?

A

b.

42
Q

How many structural isomers possessing the alcohol functional group have the molecular formula C3H8O?

A

d.

43
Q

What is the name of the following compound?

3,4-diethyl-5-methylheptane
3,4,5-heptane
3-ethyl-5-(2-butyl)hexane
3-(2-butyl)-3-ethylhexane
3,5,6-trimethylheptane

A

not d. or c.

44
Q

What type of hydrocarbon is the following molecule?

A

d.

45
Q

Which of the structures below has the common name p-dichlorobenzene (where p- is para)?

A

c.

46
Q

What is the name of the following compound?

1,1,1-trimethylbutane

3-butylpropane

2-methyl-2-propylpropane

4,4-dimethylpentane

2,2-dimethylpentane

A

e.

47
Q

Which one of the following functional groups is a base?

A

e

Chem II (13 decks)

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