chapter 12 Organic Chemistry

Question 1

Carbon compounds

a. are mostly electrolytes
b. usually have slow reaction rates
c. rapidly oxidize in air
d. tend to be stable at high temperatures

Answer 1

B. usually have slow reaction rates

Question 2

the simplest organic compounds are the
A. hydorcarbons
B. lipids
C. carbohydrates
D. monosaccharides

Answer 2

A. hyrocarbons

Question 3

Natural gas and petroleum consist mainly of
A. unsaturated hydrocarbons
B. aromatic hydrocarbons
C. alkanes
D. aldehydes and ketones

Answer 3

C. Alkanes

Question 4

Catalytic cracking and polymerization are two methods used to increase the yeild of
A. naphtha
B. pentane
C. gasoline
D. alcohol

Answer 4

C. gasoline

Question 5

Benzne is an example of 
A. an aliphatic compound 
B. a functional group
C. a polymer
D. an aromatic compound

Answer 5

D. an aromatic compund

Question 6

Vinyls,  Styrofoam, Plexiglas, and Teflon are example of
A. monomers
B. polymers
C. polyesters
D. polysaccharides

Answer 6

B. polymers

Question 7

Sugar and starches are example of
A. lipids
B. carbohydrates
C. proteins
D. nucleic acids

Answer 7

B. carbohydrates

Question 8

The catalyst for photosynthesis is 
A. DNA
B. cholesterol
C. cellulose
D. chlorophyll

Answer 8

D. chlorophyll

Question 9

Fat molecules consist of three fatty acid molecules attached to 
A. a benzene ring
B. an amino acid
C. an alcohol molecule
D. a glycerol molecule

Answer 9

D. a glycerol molecule

Question 10

The organic molecule that can replicate itself is 
A. DNA
B. an amino acid
C. acetaldehyde
D. ethylene glycol

Answer 10

A. DNA

Question 11

T/F

Carbon compounds are produced only by plants and animals

Answer 11

False

Question 12

T/F

A structural formula shows how many atoms of each kind are present and how these atoms are linked together

Answer 12

True

Question 13

T/F
The number of bonds an atom forms in an organic compound is the same as the number of electrons it has to gain to lose to achieve a close outer shell.

Answer 13

True

Question 14

T/F

Isomers of compound have the same molecular formula also have the same set of physical and chemical properties.

Answer 14

False Isomers have different properties both physical and chemical

Question 15

T/F

The process of the oxidation of glucose is the reverse of photosynthesis

Answer 15

True

Question 16

T/F

unsaturated fats are normally solids at room temperature.

Answer 16

False usually liquids

Question 17

T/F

Proteins consist of long chain of simple sugar units

Answer 17

False long chains of amino acids

Question 18

T/F

The human body can synthesize all the 20 amino acids required to make human proteins.

Answer 18

False human body can only synthesize some of the 20 amino acids

Question 19

T/F

The nitrogen bases in RNA are uracil, adenine, quanine, and cytosine.

Answer 19

True

Question 20

T/F

The sequence of nitrogen bases in a DNA molecule represents the genetic code for a specific organism.

Answer 20

true

Question 21

– chemistry is the chemistry of carbon compounds

Answer 21

Organic

Question 22

– are the simplest group of carbon compounds because they contain only carbon and hydrogen

Answer 22

Hydrocarbons

Question 23

– are organic compounds that have the same molecular formulas but different structural formulas and properties.

Answer 23

Isomers

Question 24

– compounds are able to add other atoms to their molecules; – compounds cannot add other atoms to their molecules.

Answer 24

Unsaturated, Saturated

Question 25

– compounds are organic compounds that contain one or more benzene rings; –compounds are organic compounds that do not contain bezene rings.

Answer 25

Aromatic, Alphatic

Question 26

Alcohols react with acids to form–

Answer 26

esters

Question 27

A(n)– group is a group of atoms whose presence in an organic compound largely determines its chemical behavior.

Answer 27

functional

Question 28

A(n)– is a long chain of simple molecules chemically linked together.

Answer 28

polymer

Question 29

– material softens and can be shaped when heated but becomes rigid again upon cooling.

Answer 29

Thermoplastic

Question 30

A(n) – is a compound of carbon, hydrogen, and oxygen whose ratio of hydrogen to oxygen is 2:1.

Answer 30

carohydrate

Question 31

–are biological molecules that include fats, oils, and waxes.

Answer 31

Lipids

Question 32

In a(n)–, amino acids are linked by peptide bonds.

Answer 32

protein

Question 33

Nucleic acids consist of long chains of units called–

Answer 33

nucleotides

Question 34

– controls the development and functioning of cells by determining the proteins cell make.

Answer 34

DNA

Question 35

The set of instructions for each protein is called a(n)–

Answer 35

gene