Deck 14: Organic Chemistry

Question 1

In organic molecules, a bromine atom will normally form how many bonds?

A) 2
B) 3
C) 4
D) 1
E) 0

Answer 1

D

Question 2

Hydrocarbons containing only single bonds are

A) alkanes.
B) alkenes.
C) aromatics.
D) alkynes.
E) ketones.

Answer 2

A

Question 3

In organic molecules, a sulfur atom will normally form how many bonds?

A) 0
B) 1
C) 2
D) 3
E) 4

Answer 3

C

Question 4

Which of the following atoms normally has one covalent bond to it?

A) Br
B) O
C) C
D) P
E) Ne

Question 5

Which of the following is a methyl group?

A) CH₃CH₂-
B) CH₃-
C) CH₂=CH-
D) CH₂CH₃-
E) CH CH-

Question 6

Which of the following atoms normally has one covalent bond to it?

A) At
B) Se
C) Si
D) P
E) Ne

Question 7

Which of the following atoms normally has one covalent bond to it?

A) Cl
B) Te
C) Si
D) N
E) Ne

Question 8

Hydrocarbons containing carbon-carbon triple bonds are

A) alkenes.
B) cycloalkanes.
C) alkynes.
D) alkanes.
E) ketones.

Question 9

In organic molecules, a chlorine atom will normally form how many bonds?

A) 2
B) 3
C) 4
D) 1
E) 0

Question 10

In organic molecules, a carbon atom will normally form how many bonds?

A) 1
B) 4
C) 3
D) 2
E) 0

Question 11

Which of the following atoms normally has one covalent bond to it?

A) I
B) O
C) C
D) P
E) Kr

Question 12

When a carbon atom forms four single bonds, the bonds are at what angle to one another?

A) 109.5°
B) 90°
C) 120°
D) 23.5°
E) 60°

Question 13

Which of the following is an ethyl group?

A) CH₃CH₂-
B) CH₂=CH-
C) CH₂CH₃-
D) CH₃-
E) CH CH-

Question 14

The study of compounds that contain carbon is called

A) biochemistry.
B) inorganic chemistry.
C) polymer chemistry.
D) organic chemistry.
E) physics.

Question 15

Organic chemistry studies chemical compounds that contain at least one atom of

A) nitrogen.
B) oxygen.
C) carbon.
D) hydrogen.
E) silicon.

Question 16

Hydrocarbons containing all single bonds and a ring in their structural formulas are

A) alkenes.
B) cycloalkanes.
C) alkynes.
D) alkanes.
E) ketones.

Question 17

In organic molecules, an oxygen atom will normally form how many bonds?

A) 0
B) 1
C) 2
D) 3
E) 4

Question 18

Hydrocarbons containing carbon-carbon double bonds are

A) alkenes.
B) cycloalkanes.
C) alkynes.
D) alkanes.
E) ketones.

Question 19

C₃H₄ is an example of a(n)

A) aromatic.
B) alkene.
C) alkyne.
D) alkane.
E) cycloalkane

Question 20

In organic molecules, a fluorine atom will normally form how many bonds?

A) 2
B) 3
C) 4
D) 1
E) 0

Question 21

4-Fluoroheptane and 5-fluoroheptane are

A) isomers.
B) the same compound.
C) neither isomers nor the same compound.

Question 22

Which organic compound is represented by a pentagon?

A) Benzene
B) Cyclopentane
C) Cyclopropane
D) Cyclobutane
E) Methane

Question 23

How many constitutional isomers that are dibromopropanes exist?

A) 5
B) 4
C) 7
D) 3
E) 6

Question 24

Which of the following could be the molecular formula for an alkane?

A) C₅H₅
B) C₇H₁₄
C) C₄H₇
D) C₁₀H₁₈
E) C₄H₁₀

Question 25

Which of the following could be the molecular formula for an alkene?

A) C₇H₇
B) C₈H₁₆
C) C₂H₃
D) C₂H₂
E) C₂H₆

Question 26

How many constitutional isomers that are dibromocyclopropanes exist?

A) 3
B) 8
C) 4
D) 2
E) 5

Question 27

Which of the following could be the molecular formula for an alkane?

A) C₄H₄
B) C₇H₁₄
C) C₃H₅
D) C₉H₁₆
E) C₅H₁₂

Question 28

Compounds that have the same molecular formula but different structural formulas are called structural, or constitutional,

A) isomers.
B) derivatives.
C) congeners.
D) isotopes.
E) progeners.

Question 29

How many constitutional isomers that are trifluoroethanes exist?

A) 3
B) 2
C) 4
D) 8
E) 5

Question 30

Which of the following could be the molecular formula for an alkene?

A) C₉H₉
B) C₆H₁₂
C) C₉H₁₇
D) C₅H₈
E) C₂H₆

Question 31

Which of the following could be the molecular formula for an alkene?

A) C₅H₅
B) C₂H₄
C) C₃H₅
D) C₉H₁₆
E) C₄H₁₀

Question 32

1-Chlorobutane and 2-chlorobutane are

A) isomers.
B) the same compound.
C) neither isomers nor the same compound.

Question 33

Which pair are actually the same compound?

A) (CH₃)₃ N and CH₃CH₂CH₂NH₂
B) CH₃CH₂CH(NH₂)CH₃ and CH₃CH(NH₂)CH₂CH₃
C) CH₃CH(Cl)CH₃ and CH₃CH₂CH(Cl)CH₃
D) CH₃(CH₂)₂CH₃ and CH₃CH₂CH(CH₃)₂
E) CH₃CH₂CH₂NH₂ and CH₃CH₂CH₂N₂H₂

Question 34

Which organic compound is represented by a triangle?

A) Trianol
B) Cyclopropane
C) Benzene
D) Cyclobutane
E) Methane

Question 35

Which of the following could be the molecular formula for an alkene?

A) C₈H₈
B) C₉H₁₈
C) C₅H₉
D) C₅H₈
E) C₈H₁₈

Question 36

Which pair are isomers?

A) CH₃ CH₂ CH(NH₂) CH₃ and CH₃ CH(NH₂) CH₂ CH₃
B) CH₃CH(Cl)CH₃ and CH₃CH₂CH(Cl)CH₃
C) (CH₃)₃ N and CH₃CH₂CH₂NH₂
D) CH₃ (CH₂)₂ CH₃ and CH₃ CH₂CH(CH₃)₂
E) CH₃CH₂CH(Cl)CH₃ and CH₃ CH(NH₂) CH₂ CH₃

Question 37

Which of the following could be the molecular formula for an alkane?

A) C₇H₇​
B) C₆H₁₂​
C) C₅H₉​
D) C₉H₁₆​
E) C3H8

Question 38

When hydrogen reacts with ethene, what is the product?

A) Cycloethene
B) Ethane
C) Propene
D) Ethyne
E) Methane

Question 39

How many constitutional isomers that are dibromoethanes exist?

A) 3
B) 4
C) 5
D) 2
E) 6

Question 40

Which of the following could be the molecular formula for an alkane?

A) C₃H₃
B) C₇H₁₄
C) C₄H₇
D) C₁₀H₁₈
E) C₆H₁₄

Question 41

Alkyl halides are distinguished by the fact that at least one hydrogen atom in a hydrocarbon has been replaced by a(n)

A) alkyl group.
B) OH group.
C) halogen atom.
D) oxygen atom.
E) CH₃ group.

Question 42

When a carboxylic acid reacts with an amine, the products are water and a(n)

A) aldehyde.
B) ester.
C) amide.
D) salt.
E) ketone.

Question 43

1-Bromobutane and 4-bromobutane are

A) the same compound.
B) neither isomers nor the same compound.
C) isomers.

Question 44

A hydrocarbon that contains one or more benzene rings must be classified as

A) an alkane.
B) a cycloalkane.
C) aromatic.
D) an alkene.
E) an alkyne.

Question 45

Ethene and ethane are

A) isomers.
B) the same compound.
C) neither isomers nor the same compound.

Question 46

4-Fluoroheptane and 3-fluoroheptane are

A) isomers.
B) the same compound.
C) neither isomers nor the same compound.

Question 47

Cholesterol belongs to what class of organic compounds?

A) Alkyl halides
B) Esters
C) Carboxylic acids
D) Alcohols

Question 48

Methyl salicylate is an ester commonly called

A) glycerine.
B) oil of wintergreen.
C) heroin.
D) chloroform.
E) methamphetamine.

Question 49

A hydrocarbon that is not classified as aromatic must be classified as

A) nucleophilic.
B) synthetic.
C) aliphatic.
D) carboxylic.

Question 50

2-Bromobutane and 4-bromobutane are

A) the same compound.
B) neither isomers nor the same compound.
C) isomers.

Question 51

Alcohols are distinguished by the fact that at least one hydrogen atom in a hydrocarbon has been replaced by a(n)

A) carboxyl group.
B) alkyl group.
C) hydroxyl group.
D) oxygen atom.

Question 52

CH₃ CONHCH₂ CH₃ is an example of a(n)

A) amide.
B) amine.
C) ester.
D) carboxylic acid.

Question 53

What organic compound is represented by a hexagon with a circle inside?

A) Cyclohexane
B) Cycloheptane
C) Benzene
D) Ethanol
E) Methane

Question 54

When a carboxylic acid reacts with an alcohol, the products are water and a(n)

A) aldehyde.
B) ester.
C) salt.
D) amide.
E) ketone.

Question 55

Chlorine is not present in

A) CFCs.
B) chloroform.
C) Freon-12.
D) Teflon.

Question 56

What is the molecular formula for benzene?

A) C₆H₆
B) C₆H₁₂
C) C₆H₁₄
D) C₆H₈
E) None of these

Question 57

The most common aromatic hydrocarbon is a clear, colorless liquid named

A) naphthalene.
B) hexane.
C) benzene.
D) ethanol.
E) methane.

Question 58

CFCs are

A) alcohols.
B) hydrocarbons.
C) alkyl halides.
D) amides.

Question 59

A solution of 5% acetic acid and 95% water is called

A) chloroform.
B) antifreeze.
C) vinegar.
D) gasohol.
E) alcohol.

Question 60

Acetic acid consists of a(n) ______________ group attached to a carboxyl group.

A) amino
B) methyl
C) hydroxyl
D) ethyl

Question 61

Which alcohol is used as an antifreeze?

A) 2-Hydroxypropane
B) Ethylene glycol
C) Ethanol
D) Methanol

Question 62

We get sucrose and water if we chemically combine

A) fructose and maltose.
B) glucose and fructose.
C) maltose and lactose.
D) glucose and lactose.

Question 63

Which alcohol is used in rubbing alcohol?

A) 2-Hydroxypropane
B) Ethylene glycol
C) Ethanol
D) Methanol

Question 64

Another name for glucose is

A) dextrose.
B) malt sugar.
C) sucrose.
D) lactose.

Question 65

Which sugar is found in greater than normal amounts in the blood of a diabetic?

A) Sucrose
B) Lactose
C) Glucose
D) Fructose

Question 66

Which simplest alcohol is used in race cars as fuel?

A) 2-Propanol
B) Ethylene glycol
C) Ethanol
D) Methanol

Question 67

An advantage of synthetic detergents over soaps is that they

A) do not contain sulfur.
B) dissolve grease.
C) do not form scum in hard water.
D) are more readily biodegradable.

Question 68

Which of the following is not a carbohydrate?

A) Maltose
B) Glucose
C) Fructose
D) Glyceryl tristearate

Question 69

Which of the following is a carbohydrate?

A) Maltose
B) Glycine
C) Ribonucleic acid
D) Glyceryl tristearate

Question 70

Which of the following is not a carbohydrate?

A) Maltose
B) Glycine
C) Fructose
D) Glucose

Question 71

The general formula RNH₂ is that of

A) an ester.
B) an amine.
C) an amide.
D) none of these

Question 72

Which compound has three hydroxyl groups?

A) Ethylene glycol
B) Ethanol
C) Cholesterol
D) Glycerol

Question 73

What are the basic building blocks of proteins?

A) Amino acids
B) Starches
C) Sugars
D) Carboxylic acids

Question 74

Which sugar is a chemically bonded combination of two other sugars?

A) Sucrose
B) Lactose
C) Glucose
D) Fructose

Question 75

Triesters of long-chain acids with glycerol are called

A) condensation polymers.
B) fats.
C) soaps.
D) synthetic detergents.

Question 76

The suffix -ol in a compound's name signifies

A) an enzyme.
B) an amide.
C) an alcohol.
D) a carbohydrate.

Question 77

Starch is a polymer that consists of long chains of ______________ units.

A) lactose
B) fructose
C) maltose
D) glucose

Question 78

The suffix -ose in a compound's name signifies a(n)

A) amide.
B) alcohol.
C) carbohydrate.
D) enzyme.

Question 79

Which sugar is the sweetest of all sugars?

A) Sucrose
B) Lactose
C) Glucose
D) Fructose

Question 80

Which alcohol is used in beverages?

A) 2-Propanol
B) Ethylene glycol
C) Ethanol
D) Methanol