Deck 2: Anatomy of an Organic Molecule

Question 1

A molecule contains only carbon and hydrogen atoms,a single ring,and two ð bonds.Which of the following represents its possible formula?

A)C₁₀H₁₆
B)C₁₂H₁₈
C)C₉H₁₈
D)C₁₁H₁₆

Answer 1

C₁₀H₁₆

Question 2

What is the IUPAC name of the following molecule?

A)7-ethyl-3-methyl-5-isopropylnonane
B)3-ethyl-7-methyl-5-isopropylnonane
C)7-ethyl-5-isopropyl-3-methylnonane
D)3-ethyl-5-isopropyl-7-methylnonane

Answer 2

3-ethyl-5-isopropyl-7-methylnonane

Question 3

What is the general formula for a saturated alkane?

A)C_nH_2n+2
B)C_nH_2n
C)C_nH_2n-2
D)C_nH_n

Answer 3

C_nH_2n+2

Question 4

Which of the following molecules contains both a hydrogen bond donor and a hydrogen bond acceptor?

A)
B)
C)
D)

Question 5

Which of the following molecules CANNOT act as a hydrogen bond acceptor?

A)
B)
C)
D)

Question 6

What is the IUPAC name of the following molecule?

A)6-carboxy-5-methylhexan-2-one
B)1-carboxy-2-methylhexan-5-one
C)2-methyl-5-oxohexanoic acid
D)5-methyl-2-oxohexanoic acid

Question 7

What describes the following functional group?

A)anhydride
B)ether
C)acetal
D)ester

Question 8

Which functional group is NOT present in the structure of heroin shown below?

A)amine
B)ester
C)ether
D)acid anhydride

Question 9

Which functional group is present in the structure of heroin shown below?

A)amide
B)acid anhydride
C)alkene
D)ether

Question 10

What describes the following functional group?

A)nitro
B)nitrile
C)amine
D)amide

Question 11

Which of the following best describes the molecules shown below?

A)I is more soluble in water and has a higher melting point than II.
B)I is less soluble in water and has a higher melting point than II.
C)I is more soluble in water and has a lower melting point than II.
D)I is less soluble in water and has a lower melting point than II.

Question 12

What describes the following functional group?

A)anhydride
B)hemiacetal
C)acetal
D)hydrate

Question 13

What describes the following functional group?

A)nitro
B)nitrile
C)amine
D)amide

Question 14

A linear hydrocarbon contains two sp hybridized carbons and four sp² hybridized carbons.Which of the following represents its possible formula?

A)C₉H₁₄
B)C₉H₁₆
C)C₁₀H₁₄
D)C₁₀H₁₂

Question 15

Which of the following best describes the molecules shown below?

A)I has stronger London dispersion forces and a higher boiling point than II.
B)I has weaker London dispersion forces and a higher boiling point than II.
C)I has stronger London dispersion forces and a lower boiling point than II.
D)I has weaker London dispersion forces and a lower boiling point than II.

Question 16

What is the IUPAC name of the following molecule?

A)3,6-diethyl-2,5-dimethyloctane
B)3,6-diethyl-4,7-dimethyloctane
C)6-ethyl-3-isopropyl-5-dimethyloctane
D)3-ethyl-6-isopropyl-4-dimethyloctane

Question 17

Which of the following formulas represents an unsaturated molecule.

A)C₁₀H₂₂O
B)C₇H₁₂F₂Cl₂
C)C₅H₁₀OBr₂
D)C₈H₁₈N₂

Question 18

Which of the following best describes a functional group?

A)It is a part of a molecule that contains ð bonds.
B)It is a part of a molecule that contains heteroatoms.
C)It is a part of a molecule that contains ð bonds and/or heteroatoms.
D)It is a part of a molecule that contains ð bonds and heteroatoms.

Question 19

What is the IUPAC name of the following molecule?

A)5-methylhexan-2-one
B)5-methylhexan-2-al
C)2-methylhexan-5-one
D)2-methylhexan-5-al

Question 20

What is the IUPAC name of the following molecule?

A)pent-1-en-3-yne
B)pent-3-yne-1-ene
C)pent-3-en-1-yne
D)pent-1-yne-3-ene

Question 21

Which of the following best describes the solvent methanol?

A)polar and protic
B)polar and aprotic
C)non-polar and protic
D)non-polar and aprotic

Question 22

Which of the following best describes the solvent dimethylforamide (DMF)shown below?

A)polar and protic
B)polar and aprotic
C)non-polar and protic
D)non-polar and aprotic

Question 23

How many hydrogen bond accepting pairs of electrons does the molecule of penicillin (shown below)contain?

A)6
B)7
C)10
D)12

Question 24

Which of the following best describes the molecule of heroin shown below?

A)H-bond donor
B)H-bond acceptor
C)both H-bond donor and H-bond acceptor
D)neither a H-bond donor or a H-bond acceptor

Question 25

How many hydrogen bond donors does the molecule of penicillin (shown below)contain?

A)0
B)1
C)2
D)4

Question 26

Which of the following best describes the solvent diethyl ether?

A)polar and protic
B)polar and aprotic
C)non-polar and protic
D)non-polar and aprotic

Question 27

How many hydrogen bond accepting pairs of electrons does the molecule of heroin (shown below)contain?

A)1
B)5
C)6
D)11

Question 28

Which functional group is NOT present in the molecule of penicillin shown below?

A)amide
B)benzene
C)carboxylic acid
D)ketone

Question 29

What is the strongest intermolecular force that the molecule shown below is capable of making?

A)London dispersion
B)electrostatics
C)dipole-dipole
D)hydrogen bonding

Question 30

Rank the following in terms of increasing solubility in water (least to most).

A)I,II,III
B)III,II,I
C)II,I,III
D)III,I,II

Question 31

Which statement best describes the two molecules shown below?

A)I has a higher melting point and higher solubility in water than II.
B)I has a higher melting point and lower solubility in water than II.
C)I has a lower melting point and higher solubility in water than II.
D)I has a lower melting point and lower solubility in water than II.

Question 32

How many ð bonds can be found in the structure of penicillin shown below?

A)2
B)3
C)5
D)6

Question 33

Which of the following best describes the solvent dimethylsulfoxide (DMSO)shown below?

A)polar and protic
B)polar and aprotic
C)non-polar and protic
D)non-polar and aprotic

Question 34

Which functional group is present in the molecule of penicillin shown below?

A)amine
B)ketone
C)carboxylic acid
D)alcohol

Question 35

Which functional group has the highest priority using IUPAC naming?

A)ketone
B)alkene
C)ether
D)carboxylic acid

Question 36

How many hydrogen bond donor sites does the molecule of heroin (shown below)contain?

A)0
B)1
C)6
D)7

Question 37

Which of the following represents the strongest intermolecular force?

A)London dispersion
B)electrostatics
C)dipole-dipole
D)hydrogen bonding

Question 38

What intermolecular force is possible in the following molecule of heroin,shown below?

A)London dispersion
B)London forces and dipole-dipole
C)dipole-dipole and electrostatic
D)London dispersion and electrostatic

Question 39

Which of the following would be least soluble in water?

A)
B)
C)
D)

Question 40

Rank the following in terms of increasing boiling point (least to most).

A)III,I,II
B)II,I,III
C)I,II,III
D)I,III,II

Question 41

Acetonitrile is a polar protic solvent.

Question 42

London dispersion is the principle intermolecular force among alkenes.

Question 43

In order to be a hydrogen bond acceptor,an atom needs to have a lone pair of electrons.

Question 44

Methanol is a polar protic solvent.

Question 45

Ketones have a prefix of oxy- when naming using IUPAC rules.

Question 46

Ketones can act as hydrogen bond donors.

Question 47

What is the IUPAC name of the compound shown below?

A)1-chloro-2-methylcyclohexan-2-ol
B)2-chloro-1-methylcyclohexan-5-ol
C)4-chloro-5-methylcyclohexanol
D)4-chloro-3-methylcyclohexanol

Question 48

A nitrile bond contains two ð bonds.

Question 49

The stronger the intermolecular forces,the higher the melting point.

Question 50

Aldehydes have a suffix of -al when naming using IUPAC rules.

Question 51

Diethyl ether is a non-polar solvent.

Question 52

Which of the following molecules would be expected to have the largest melting point?

A)
B)
C)
D)

Question 53

What is the IUPAC name of the compound shown below?

A)1-ethyl-2,4-dimethyl-5-chloro-cyclohexane
B)5-chloro-1-ethyl-2,4-dimethylcyclohexane
C)1-chloro-5-ethyl-2,4-dimethylcyclohexane
D)1-chloro-2,4-dimethyl-5-ethylcyclohexane

Question 54

But- is a prefix that represents three carbons.

Question 55

Branched hydrocarbons are capable of more London dispersion forces than linear hydrocarbons with the same number of carbons.

Question 56

Branched hydrocarbons have higher boiling points than linear hydrocarbons with the same number of carbons.

Question 57

Substituents on an organic molecule are named in alphabetical order using IUPAC rules.

Question 58

Which of the following would be most soluble in water?

A)
B)
C)
D)

Question 59

Branched hydrocarbons are less soluble in water than linear hydrocarbons of similar size.

Question 60

What is the IUPAC name of the compound shown below?

A)1-ethyl-3-isopropyl-4-methylcyclopentane
B)4-ethyl-1-isopropyl-2-methylcyclopentane
C)1-isopropyl-2-methyl-4-ethylcyclopentane
D)4-ethyl-2-methyl-1-isopropylcyclopentane

Question 61

A molecule that dissolves in water is known as _______________ .

Question 62

A molecule that is hydrophobic is expected to be insoluble in water.

Question 63

Linear hydrocarbons are capable of stronger London dispersion than similarly sized branched hydrocarbons.

Question 64

The prefix for a ketone is _______________ .

Question 65

Solubility is governed by the type and strength of the intermolecular interactions between solvent and solute.

Question 66

Dipole-dipole interactions involve the attraction of full formal charges.

Question 67

Alcohols are more polar than carboxylic acids.

Question 68

Secondary amines can act as hydrogen bond donors only.

Question 69

Quaternary amines are capable of electrostatic interactions.

Question 70

Esters are capable of acting as hydrogen bond _______________ .

Question 71

The suffix for an aldehyde is _______________ .

Question 72

A carbon-nitrogen triple bond is identified as a(n)_______________ functional group.

Question 73

Electrostatic interactions are stronger than hydrogen bonds.

Question 74

Ethers contain an oxygen atom with one ó bond and one ð bond.

Question 75

Nitrobenzene has a chemical formula of _______________ .

Question 76

DMF is known as a(n)_______________ solvent.

Question 77

The term _______________ translates to water fearing and represents most alkanes.

Question 78

Cyclic organic compounds are more soluble in water than linear organic compounds of similar size.

Question 79

4-bromo-2-methylhexanoic acid has a formula of _______________ .

Question 80

The general formula of a saturated hydrocarbon is_______________ .