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Chem 103 Multiple Choice Final Exam > Chem 103 Multiple Choice Final Exam > Flashcards

Chem 103 Multiple Choice Final Exam Flashcards

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1
Q

A hydrocarbon with a double bond is a(n)

A

alkene

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2
Q

A hydrocarbon contains only the elements

A

carbon and hydrogen

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3
Q

An alkyne is always a carbon compound that contains a ________ bond.

A

triple

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4
Q

According to the IUPAC convention for chemical naming, which part of a hydrocarbon is selected as the main chain for a hydrocarbon chain?

A

the longest continuous chain, regardless of bends

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5
Q

Alkynes can show cis-trans isomerism.
true / false

A

false

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6
Q

Alkynes can show cis-trans isomerism.
true / false

A

false

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7
Q

According to Markovnikov’s rule, the hydrogen in HOH (water) adds to the carbon in the double bond

A

that has the greater number of hydrogen atoms attached

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8
Q

A compound that contains the ring structure of benzene is called a(n)

A

aromatic compound

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9
Q

In a cis alkene, the groups are on the same side of the double bond.
true / false

A

true

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10
Q

All alkenes show cis-trans isomerism.
true / false

A

false

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11
Q

A secondary alcohol can be easily oxidized to a carboxylic acid.
true / false

A

false

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12
Q

A phenol has an -OH group bonded to a(n)

A

aromatic carbon

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13
Q

Alcohols, ethers, and thiols contain oxygen atoms.
true / false

A

false

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14
Q

Alcohols, ethers, and phenols contain oxygen with only single bonds.
true / false

A

true

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15
Q

In the oxidation of an alcohol to a ketone, there is

A

a loss of hydrogen

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16
Q

What is the IUPAC name for CH3 - CH2 - CH2 - SH?

A

1-propanethiol

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17
Q

Hexanal would be soluble in water.
true / false

A

false

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18
Q

An acetal is formed from an aldehyde or ketone and one molecule of alcohol.
true / false

A

false

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19
Q

A hemiacetal has alkoxy and hydroxyl functional groups bonded to the same carbon.
true / false

A

true

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20
Q

Carbonyl compounds having fewer than four carbon atoms are very water soluble.
true / false

A

true

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21
Q

Propanal is more soluble than pentanal.
true / false

A

true

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22
Q

The carbonyl group gives aldehydes higher boiling points than alkanes of similar mass.
true / false

A

true

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23
Q

In the IUPAC naming system, a ketone is named by replacing the -e in the corresponding alkane name with

A

-one

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24
Q

Organic chemistry is the study of the chemistry of compounds of

A

carbon

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25
Q

The compound CH3-CH2-SH is in the organic family known as

A

thiols

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26
Q

Carbon atoms always have how many covalent bonds?

A

four

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27
Q

The common name for the compound CH3-CH2-CH2-O-CH2-CH3 is

A

ethyl propyl ether

28
Q

In all aldehydes except formadelyde (methanal), how many hydrogen atoms is the carbonyl group bonded to?

A

one

29
Q

The carbonyl group consists of

A

a carbon-oxygen double bond

30
Q

During photosynthesis, carbon dioxide and water are converted to glucose and oxygen by

A

green plants

31
Q

A monosaccharide that contains 4 carbon atoms, one of which is in an aldehyde group, is classified as a(n)

A

aldotetrose

32
Q

A monosaccharide that consists of 5 carbon atoms, one of which is in a ketone group, is classified as a(n)

A

ketopentose

33
Q

The product of oxidation of an aldose is a carboxylic acid.
true / false

A

true

34
Q

In the common naming convention for carboxylic acids, what is the correct Greek letter used for the carbon adjacent to the carboxyl group?

A

alpha (α)

35
Q

A carboxylic acid is prepared from an aldehyde by

A

oxidation

36
Q

What kind of intermolecular bonding occurs between carboxylic acids?

A

hydrogen bonding

37
Q

The reaction of an ester with NaOH is known as

A

saponification

38
Q

The splitting apart of an ester in the presence of a strong acid and water is called

A

hydrolysis

38
Q

Which group of carbohydrates cannot be hydrolyzed to give smaller molecules?

A

monosaccharide

39
Q

What happens to water solubility as chain length decreases in carboxylic acids?

A

it increases

39
Q

The breakdown of carbohydrates to carbon dioxide and water in the body is called

A

respiration

39
Q

The alcohol and carboxylic acid required to form propyl ethanoate are

A

1-propanol and ethanoic acid

39
Q

Aromatic carboxylic acid

A

benzoic acid

40
Q

The oxidation of monosaccharides produces

A

sugar acids

41
Q

Steroids do not contain fatty acids.
true / false

A

true

42
Q

Unsaturated fatty acids have lower melting points than saturated fatty acids because

A

the cis double bonds give them an irregular shape

43
Q

Bile salts are synthesized from ________.

A

cholesterol

44
Q

Many sex hormones are steroids.
true / false

A

true

45
Q

A polyunsaturated fatty acid contains more than one

A

double bond

46
Q

Bile salts are stored in the ________.

A

gallbaldder

47
Q

Synthesis of cholesterol and bile salts takes place in the

A

liver

48
Q

One inner component of a typical cell membrane is

A

cholesterol

48
Q

Aniline is the IUPAC approved name for aminobenzene.
true / false

A

true

49
Q

What kind of amine can NOT form hydrogen bonds?

A

tertiary

50
Q

Amines contain the element

A

nitrogen

51
Q

Amides are derivatives of ________ and ________.

A

amines; carboxylic acids

52
Q

A neurotransmitter

A

transmits a nerve impulse

53
Q

Amines act as weak acids by accepting protons from water.
true / false

A

false

54
Q

Amines are

A

bronsted-lowry bases

55
Q

Denaturation of a protein

A

disrupts the secondary, tertiary, or quaternary structure of a protein

56
Q

The α helix of the secondary structure of a protein is held together by ________ between two widely separated parts of a protein chain.

A

hydrogen bonds

57
Q

At a pH < 5, the zwitterion for alanine (pI = 6) will have

A

a net positive charge

58
Q

Zwitterions have an overall positive charge.
true / false

A

false

58
Q

A chain made of more than 50 amino acids is usually referred to as a(n)

A

protein

59
Q

Acids and bases denature a protein by disrupting

A

hydrophobic interactions and peptide bonds

60
Q

A basic amino acid has an R group that contains

A

an amine group

61
Q

In a typical amino acid zwitterion, the carboxylate end is

A

negatively charge

Chem 103 Multiple Choice Final Exam (1 decks)

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