Question 1

Which of the following compounds can exist?

Accepted Answer

A) C2H3 
B) C2H4 
C) C2H5 
D) C2H7 
A) C2H3 
B) C2H4 
C) C2H5 
D) C2H7

Question 2

Ethanol

Accepted Answer

A) is also known as methyl alcohol. 
B) is not poisonous. 
C) has OH groups in its molecules. 
D) ionizes when added to water. 
A) is also known as methyl alcohol. 
B) is not poisonous. 
C) has OH groups in its molecules. 
D) ionizes when added to water.

Question 3

The unique properties of Teflon, which is composed of carbon and fluorine, arise from the strength of

Accepted Answer

A) C-C bonds. 
B) F-F bonds. 
C) C-F bonds. 
D) rings of F atoms. 
A) C-C bonds. 
B) F-F bonds. 
C) C-F bonds. 
D) rings of F atoms.

Question 4

Each dash in the structural formula of an organic molecule represents a shared

Accepted Answer

A) electron. 
B) electron pair. 
C) ion pair. 
D) carbon atom. 
A) electron. 
B) electron pair. 
C) ion pair. 
D) carbon atom.

Question 5

The isomers of a compound have different

Accepted Answer

A) molecular compositions. 
B) molecular masses. 
C) structures. 
D) numbers of bonds between their atoms. 
A) molecular compositions. 
B) molecular masses. 
C) structures. 
D) numbers of bonds between their atoms.

Question 6

Methane is not

Accepted Answer

A) a hydrocarbon. 
B) an alkane. 
C) present in natural gas. 
D) present in gasoline. 
A) a hydrocarbon. 
B) an alkane. 
C) present in natural gas. 
D) present in gasoline.

Question 7

A double helix structure is characteristic of

Accepted Answer

A) DNA. 
B) proteins. 
C) carbohydrates. 
D) lipids. 
A) DNA. 
B) proteins. 
C) carbohydrates. 
D) lipids.

Question 8

Alkane molecules

Accepted Answer

A) have only single carbon-carbon bonds. 
B) may have double carbon-carbon bonds. 
C) react readily with acids. 
D) react readily with bases. 
A) have only single carbon-carbon bonds. 
B) may have double carbon-carbon bonds. 
C) react readily with acids. 
D) react readily with bases.

Question 9

A variety of alkanes is found in

Accepted Answer

A) gasoline. 
B) carbohydrates. 
C) proteins. 
D) esters. 
A) gasoline. 
B) carbohydrates. 
C) proteins. 
D) esters.

Question 10

All alcohols

Accepted Answer

A) are safe to drink. 
B) can be made only by fermentation. 
C) contain just one OH group. 
D) contain one or more OH groups. 
A) are safe to drink. 
B) can be made only by fermentation. 
C) contain just one OH group. 
D) contain one or more OH groups.

Question 11

Amino acids are the basic units of

Accepted Answer

A) carbohydrates. 
B) proteins. 
C) lipids. 
D) nucleic acids. 
A) carbohydrates. 
B) proteins. 
C) lipids. 
D) nucleic acids.

Question 12

The structural formula of the methyl group is

Accepted Answer

A)    
B)    
C)    
D)    
A)    
B)    
C)    
D)

Question 13

To help prevent coronary heart disease, diets should only include fats that are

Accepted Answer

A) unsaturated. 
B) saturated. 
C) hydrogenated. 
D) trans fats. 
A) unsaturated. 
B) saturated. 
C) hydrogenated. 
D) trans fats.

Question 14

The oxygen in the earth's atmosphere comes from

Accepted Answer

A) volcanoes. 
B) space. 
C) photosynthesis. 
D) the action of lightning on seawater. 
A) volcanoes. 
B) space. 
C) photosynthesis. 
D) the action of lightning on seawater.

Question 15

The mass of fat needed to provide an animal with as much energy as 1 g of carbohydrate is about

Accepted Answer

A) 0.5 g. 
B) 1 g. 
C) 2 g. 
D) 4 g. 
A) 0.5 g. 
B) 1 g. 
C) 2 g. 
D) 4 g.

Question 16

The bonds between the atoms in a molecule of a saturated organic compound are

Accepted Answer

A) all single. 
B) all double. 
C) some single and some double. 
D) all triple. 
A) all single. 
B) all double. 
C) some single and some double. 
D) all triple.

Question 17

In organic chemistry, an aromatic compound

Accepted Answer

A) has a pronounced odor. 
B) consists only of alkane molecules. 
C) has benzene rings in its molecules. 
D) does not have benzene rings in its molecules. 
A) has a pronounced odor. 
B) consists only of alkane molecules. 
C) has benzene rings in its molecules. 
D) does not have benzene rings in its molecules.

Question 18

The trans isomer of certain compounds has

Accepted Answer

A) straighter molecules than those of the cis isomer. 
B) molecules that are more bent than those of the cis isomer. 
C) right-handed molecules. 
D) left-handed molecules. 
A) straighter molecules than those of the cis isomer. 
B) molecules that are more bent than those of the cis isomer. 
C) right-handed molecules. 
D) left-handed molecules.

Question 19

Carbohydrates are manufactured in green plants by

Accepted Answer

A) polymerization. 
B) fermentation. 
C) photosynthesis. 
D) respiration. 
A) polymerization. 
B) fermentation. 
C) photosynthesis. 
D) respiration.

Question 20

Of the following acids, the one that dissociates least in water solution is

Accepted Answer

A) nitric. 
B) acetic. 
C) sulfuric. 
D) hydrochloric. 
A) nitric. 
B) acetic. 
C) sulfuric. 
D) hydrochloric.

Which of the following compounds can exist?

Ethanol

The unique properties of Teflon, which is composed of carbon and fluorine, arise from the strength of

Each dash in the structural formula of an organic molecule represents a shared

The isomers of a compound have different

Methane is not

A double helix structure is characteristic of

Alkane molecules

A variety of alkanes is found in

All alcohols

Amino acids are the basic units of

The structural formula of the methyl group is

To help prevent coronary heart disease, diets should only include fats that are

The oxygen in the earth's atmosphere comes from

The mass of fat needed to provide an animal with as much energy as 1 g of carbohydrate is about

The bonds between the atoms in a molecule of a saturated organic compound are

In organic chemistry, an aromatic compound

The trans isomer of certain compounds has

Carbohydrates are manufactured in green plants by

Of the following acids, the one that dissociates least in water solution is

The Scientific Method

Motion

Energy

Energy and the Future

Matter and Heat

Electricity and Magnetism

Waves

The Nucleus

The Atom

The Periodic Law

Crystals, Ions, and Solutions

Chemical Reactions

Atmosphere and Hydrosphere

The Rock Cycle

The Evolving Earth

The Solar System

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Exam 13: Organic Chemistry

Which of the following compounds can exist?

Ethanol

The unique properties of Teflon, which is composed of carbon and fluorine, arise from the strength of

Each dash in the structural formula of an organic molecule represents a shared

The isomers of a compound have different

Methane is not

A double helix structure is characteristic of

Alkane molecules

A variety of alkanes is found in

All alcohols

Amino acids are the basic units of

The structural formula of the methyl group is

To help prevent coronary heart disease, diets should only include fats that are

The oxygen in the earth's atmosphere comes from

The mass of fat needed to provide an animal with as much energy as 1 g of carbohydrate is about

The bonds between the atoms in a molecule of a saturated organic compound are

In organic chemistry, an aromatic compound

The trans isomer of certain compounds has

Carbohydrates are manufactured in green plants by

Of the following acids, the one that dissociates least in water solution is

The Scientific Method

Motion

Energy

Energy and the Future

Matter and Heat

Electricity and Magnetism

Waves

The Nucleus

The Atom

The Periodic Law

Crystals, Ions, and Solutions

Chemical Reactions

Atmosphere and Hydrosphere

The Rock Cycle

The Evolving Earth

The Solar System

The Stars

The Universe

Filters