Intro to Chemistry Exam 3 Review

54) What is the IUPAC name for: CH3-CH2-CH2-CH2-CH2-CH3? A) hexane B) heptane C) butane D) pentane E) none of the above

A) hexane

94) Dichlorodiphenyltrichloroethane is the chemical name for the pesticide DDT. What is the most likely class of compound for DDT? A) organic halide B) amine C) alcohol D) carboxylic acid E) none of the above

A) organic halide

35) pentane

D) 12

62) What is the IUPAC name for: CH3-CH2-CH-CH-CH3? A A CH3 CH3 A) 2-methyl-3-methylpentane B) heptane C) isoheptane D) 2,3-dimethylpentane E) none of the above

D) 2,3-dimethylpentane

61) What is the IUPAC name for: CH3-CH2-CH-CH2-CH3? A CH2-CH3 A) isoheptane B) heptane C) 2-ethylpentane D) 3-ethylpentane E) none of the above

D) 3-ethylpentane

11) Which of the following names is incorrect? A) 3-hexene B) 2-hexene C) 1-hexene D) 4-hexene

D) 4-hexene

56) How many isomers share the molecular formula C6H14? A) 2 B) 3 C) 4 D) 5 E) none of the above

D) 5

63) What is the IUPAC name for: CH3-CH2-CH-CH2-CH-CH2-CH2-CH3? A )CH3 CH2-CH3 A) 3-ethyl-5-methyloctane B) 4-ethyl-6-methyloctane C) isooctane D) 5-ethyl-3-methyloctane E) none of the above

D) 5-ethyl-3-methyloctane

38) butene

D) 8

3) Chloroalkanes (R-X) have roles in which of the following applications or processes? A) As refrigerants B) As destroyers of the planet's ozone layer C) As "nonstick" coatings and films D) All of the above

D) All of the above

6) Petroleum ________. A) is mostly a mixture of compounds that are composed of carbon and hydrogen B) is the source of many polymers, fertilizers, insecticides, and plastics C) is mostly a mixture of compounds that are covalent D) All of the above apply to petroleum.

D) All of the above apply to petroleum.

12) Which of the following formulas may be attributed to a ketone? A) C4H8O2 B) C4H10O C) C4H6 D) C4H8O

D) C4H8O

72) Which of the following is the condensed structural formula for 2-heptyne? A) CH3-CH2-CMC-CH2-CH3 B) CH3-CH2-CMC-CH2-CH2-CH3 C) CH3-CMC-CH2-CH2-CH3 D) CH3-CMC-CH2-CH2-CH2-CH3 E) none of the above

D) CH3-CMC-CH2-CH2-CH2-CH3

52) Which of the following is a fossil fuel? A) petroleum B) natural gas C) coal D) all of the above E) none of the above

D) all of the above

75) Which of the following classes of compounds has a carbonyl group? A) alcohol B) organic halide C) phenol D) amide E) none of the above

D) amide

80) What class of compound has the following general formula? A) carboxylic acid B) ketone C) amide D) amine E) aldehyde

D) amine

49) What is the term for a family of unsaturated hydrocarbon compounds having a double bond? A) alkenes B) alkynes C) arenes D) alkanes E) none of the above

A) alkenes

1) Which of the following line drawings represents an unsaturated hydrocarbon? A) has a double bond B) single bonds C) an arene D) single bonds

A) has a double bond

26) The general formula for an ether is R-O-R .

True

27) The formula C5H10O may be applicable to an aldehyde or a ketone.

True

28) The formula C2H6O may be attributed to an alcohol or an ether.

True

84) What is the systematic name for CH3-CH2-CHCl2? A) 1,1-dichloropropane B) 1,2-dichloropropane C) 1,3-dichloropropane D) 2,2-dichloropropane E) 3,3-dichloropropane

A) 1,1-dichloropropane

39) hexene

A) 12

57) How many isomers share the molecular formula C3H7F ? A) 2 B) 3 C) 4 D) 5 E) none of the above

A) 2

92) How many aldehydes and ketones share the molecular formula C3H6O? A) 2 B) 0 C) 3 D) 4 E) none of the above

A) 2

67) What is the IUPAC name for CH3-CH2-CH2-CH2-CH=CH-CH2-CH3? A) 3-octene B) 4-octene C) 5-octene D) octene E) none of the above

A) 3-octene

40) propyne

A) 4

34) propane

A) 8

7) Which of the following unbranched/acyclic hydrocarbons is saturated? A) C6H14 B) C5H10 C) C12H22 D) C10H20

A) C6H14

53) What is the general molecular formula for the alkane class of compounds? A) CnH2n+2 B) CnH2n C) CnH2n-2 D) all of the above E) none of the above

A) CnH2n+2

69) What is the general molecular formula for the alkyne class of compounds? A) CnH2n-2 B) CnH2n+2 C) CnH2n D) all of the above E) none of the above

A) CnH2n-2

70) What is the common name for HCMCH? A) acetylene B) ethylene C) ethene D) ethyne E) none of the above

A) acetylene

45) C5H12O

A) alcohol

96) The names of vitamins A, D, and E are retinol, calciferol, and alpha-tocopherol. What is the most likely class of compound for vitamins A, D, and E? A) alcohol B) amine C) ketone D) aldehyde E) none of the above

A) alcohol

83) What class of compound is the following? A) aldehyde B) ketone C) carboxylic acid D) ester E) amide

A) aldehyde

99) What functional group is present in the following structure of cinnamon? A) aldehyde B) ketone C) carboxylic acid D) alcohol E) none of the above

A) aldehyde

48) What is the term for a family of saturated hydrocarbon compounds? A) alkanes B) arenes C) alkenes D) alkynes E) none of the above

A) alkanes

31) Ethanol may be obtained via the fermentation of grains.

True

88) What is the common name for the following: CH3-O-CH2-CH3? A) "dimethyl ether" B) "methyl ethyl ether" C) "diethyl ether" D) "propyl ether" E) none of the above

B) "methyl ethyl ether"

42) hexyne

B) 10

32) heptane

B) 16

93) How many alcohols and ethers share the molecular formula C2H6O? A) 0 B) 2 C) 3 D) 4 E) none of the above

B) 2

71) What is the IUPAC name for CH3-CMC-CH2-CH2-CH3? A) 3-hexyne B) 2-hexyne C) 1-hexyne D) hexyne E) none of the above

B) 2-hexyne

10) The number of possible isomers of molecular C5H12 is ________. A) 4 B) 3 C) 5 D) 2

B) 3

36) ethene

B) 4

51) What is the approximate percentage of chemical compounds that are organic? A) 25% B) 90% C) 50% D) 10% E) 75%

B) 90%

14) Which hydrocarbon has the lowest boiling point? A) C3H8 B) C2H6 C) C4H10 D) C6H14

B) C2H6

13) Which of the following formulas may be attributed to an alkyne? A) C4H8O B) C4H6 C) C4H8O2 D) C4H10O

B) C4H6

73) Which of the following illustrates the reaction of propene and hydrogen gas in the presence of nickel catalyst at 25HC and 1 atm? A) CH2:CH-CH3 + H2 N -> C3H6 B) CH2:CH-CH3 + H2 N -> C3H8 C) CH2:CH-CH3 + H2 N -> C6H6 D) CH2:CH-CH3 + H2 N -> C3H4 E) CH2:CH-CH3 + H2 N -> no reaction

B) CH2:CH-CH3 + H2 N -> C3H8

86) What is the condensed structural formula for "isopropyl iodide"? A) CH3-CH2-I B) CH3-CHI-CH3 C) CH3-CH2-CH2-I D) CH3-I E) none of the above

B) CH3-CHI-CH3

81) What class of compound is the following? CH3-CH2-OH A) organic halide B) alcohol C) phenol D) ether E) amine

B) alcohol

50) What is the term for a family of unsaturated hydrocarbon compounds having a triple bond? A) alkenes B) alkynes C) alkanes D) arenes E) none of the above

B) alkynes

44) C4H11N

B) amine

95) The name of vitamin B1 is thymine. What is the most likely class of compound for vitamin B1? A) ketone B) amine C) alcohol D) aldehyde E) none of the above

B) amine

2) Which of the following hydrocarbon molecules is the most unsaturated? (Think also: Which of the following needs to have the most hydrogens added to achieve saturation?) A) has a single bond B) an arene C) has a triple bond D) has a double bond

B) an arene

79) What class of compound has the following general formula? A) carboxylic acid B) ester C) ketone D) phenol E) aldehyde

B) ester

59) What is the name of the following alkyl group? (CH3)2CHN A) ethyl B) isopropyl C) methyl D) propyl E) none of the above

B) isopropyl

97) Which of the following organic compounds is most likely not an amine? A) morphine (narcotic) B) vanillin (vanilla flavor) C) caffeine (stimulant) D) codeine (narcotic) E) nicotine (in tobacco)

B) vanillin (vanilla flavor)

85) What is the systematic name for CH2Cl-CH2-CH2Cl? A) 1,1-dichloropropane B) 1,2-dichloropropane C) 1,3-dichloropropane D) 2,2-dichloropropane E) 3,3-dichloropropane

C) 1,3-dichloropropane

41) octyne

C) 14

33) octane

C) 18

37) nonene

C) 18

8) Which of the following unbranched/acyclic hydrocarbons may have a double bond? A) C12H22 B) C6H14 C) C10H20 D) C5H8

C) C10H20

9) Which of the following unbranched/acyclic hydrocarbons may have a triple bond? A) C10H20 B) C6H14 C) C12H22 D) C5H10

C) C12H22

65) Which of the following molecular formulas corresponds to an alkene? A) C7H12 B) C7H16 C) C7H14 D) all of the above E) none of the above

C) C7H14

87) What is the condensed structural formula for 2-propanol? A) CH3-CH2-CH2-OH B) CH3-CH2-OH C) CH3-CH(OH)-CH3 D) CH2(OH)-CH2-CH3 E) none of the above

C) CH3-CH(OH)-CH3

68) Which of the following is the condensed structural formula for 4-nonene? A) CH3-CH2-CH=CH-CH2-CH2-CH2-CH3 B) CH3-CH2-CH=CH-CH2-CH2-CH2-CH2-CH3 C) CH3-CH2-CH2-CH2-CH=CH-CH2-CH2-CH3 D) CH3-CH2-CH2-CH2-CH=CH-CH2-CH3 E) none of the above

C) CH3-CH2-CH2-CH2-CH=CH-CH2-CH2-CH3

91) All of the compounds below have approximately the same molecular mass. Predict which compound has the lowest boiling point. A) CH3-CH2-CH2-OH B) CH3-CH2-CHO C) CH3-CH2-CH2-CH3 D) CH3-CO-CH3 E) CH3-CH2-CH2-NH2

C) CH3-CH2-CH2-CH3

64) What is the general molecular formula for the alkene class of compounds? A) CnH2n+2 B) CnH2n-2 C) CnH2n D) all of the above E) none of the above

C) CnH2n

77) Which of the following is the general formula for an alcohol? A) Ar0OH B) R-NH2 C) R-OH D) R-O-R' E) R-X

C) R-OH

17) Which compounds typically have an unpleasant smell? A) alcohols B) ethers C) amines D) esters

C) amines

4) Ethers were once (in times long past) extensively used as ________. A) antibiotics (germ-killers) B) paint thinners C) anesthetics D) fuel for automobiles

C) anesthetics

43) C5H10O

C) ketone

60) What is the name of the following alkyl group? CH3N A) ethyl B) isopropyl C) methyl D) propyl E) none of the above

C) methyl

55) What is the IUPAC name for: CH3-CH2-CH2-CH2-CH2-CH2-CH2-CH3? A) hexane B) heptane C) octane D) nonane E) none of the above

C) octane

16) The IUPAC name of C3H4 is ________. A) propene B) propane C) propyne D) butene

C) propyne

5) People put lemon juice (which contains citric acid) on fish to quench the "fishy" smell, even on perfectly good fish fillets. What type of chemical reaction is occurring when people are quenching the fishy smell by adding lemon juice? A) a double displacement reaction B) a single displacement reaction C) an oxidation-reduction reaction D) an acid-base reaction

D) an acid-base reaction

46) C5H10O2

D) carboxylic acid

98) Which of the following organic compounds is most likely not a ketone? A) progesterone (female hormone) B) cortisone (adrenal hormone) C) androsterone (male hormone) D) estradiol (female hormone) E) testosterone (male hormone)

D) estradiol (female hormone)

82) What class of compound is the following? CH3-CH2-O-CH2-CH3 A) organic halide B) alcohol C) phenol D) ether E) amine

D) ether

78) What class of compound has the following general formula? A) aldehyde B) alkene C) carboxylic acid D) ketone E) ester

D) ketone

15) The IUPAC name of C5H12 is ________. A) hexane B) ethane C) butane D) pentane

D) pentane

58) What is the name of the following alkyl group? CH3-CH2-CH2N A) ethyl B) isopropyl C) methyl D) propyl E) none of the above

D) propyl

89) Which of the following compounds is most soluble in water? A) CH3-CH2-O-CH2-CH3 B) CH3-CH2-CH2-CH3 C) C6H5-OH D) CH3-CH2-CH2-Cl E) CH3-CH2-CH2-OH

E) CH3-CH2-CH2-OH

76) Which of the following is a general formula for an organic halide? A) Ar-OH B) R-NH2 C) R-OH D) R-O-R' E) R-X

E) R-X

47) C4H9Cl

E) alkyl halide

100) What functional group is present in the following structure of thyroxine (thyroid hormone)? A) ether B) carboxylic acid C) amine D) organic halide E) all of the above

E) all of the above

74) Which of the following classes of compounds has a carbonyl group? A) aldehyde B) carboxylic acid C) ketone D) ester E) all of the above

E) all of the above

90) Which of the following compounds can form hydrogen bonds? A) CH3-CH-NH-CH3 B) CH3-CH2-CH2-OH C) CH3-CH2-CH2-NH2 D) CH3-CH(OH)-CH3 E) all of the above

E) all of the above

66) Which of the following pair of alkenes has the same physical properties? A) 2-butene and isobutene B) 1-butene and isobutene C) 1-butene and 2-butene D) all of the above E) none of the above

E) none of the above

21) Diamond is a hydrocarbon.

False

22) When making models of n-octane, the chain appears to be linear.

False

24) There are three possible isomers of molecular formula C4H10.

False

25) The IUPAC name for C4H8 is butane.

False

29) The formula C5H10O may be attributed to a carboxylic acid.

False

30) 1-propanol is the formula for rubbing alcohol.

False

18) Unlike carbon, nitrogen has the potential of bonding to other atoms of itself, but cannot form long chains

True

19) Carbon always form four bonds.

True

20) CH3NH2 is a primary amine.

True

23) The H-C-H angle in alkanes is about 109°.

True