Chapters 8-20 & 16

Question 1

Food additives are used

a) to enhance or improve the taste of food
b) as antioxidants
c) as preservatives
d) all the above

Answer 1

D) all the above

Question 2

An electrochemical cell is a device that converts chemical energy into

Answer 2

Electrical energy

Question 3

An organic compound is best defined as

Answer 3

a compound containing carbon

Question 4

In representing the general formula of various functional groups, the symbol R stands for

Answer 4

an alkyl group

Question 5

What is the name of the compound with a formula CH3CH3?

Answer 5

Ethane

Question 6

The general formula for a ketone is

Answer 6

RCOR’

Question 7

Every reduction reaction must be accompanied by

Answer 7

an oxidation reaction

Question 8

In a reaction, the substance undergoing oxidation serves as the

Answer 8

reducing agent

Question 9

The -COOH group represents the

Answer 9

Carboxyl group

Question 10

From your body’s perspective, glucose is

a) a fuel
b) a source of structural material
c) an oxidizing agent
d) all the above

Answer 10

a fuel

Question 11

The simplest alkane is

Answer 11

methane (meth = 1)

Question 12

The addition of nutrients to replace those lost in processing is called

Answer 12

enrichment

Question 13

Monomers are

a) small polymers
b) ethylene
c) small building blocks of polymers
d) all the above

Answer 13

small building blocks of polymers

Question 14

The unique aspect of a saturated hydrocarbon is that it must contains

Answer 14

only single bonds

Question 15

What is the name of the compound with a formula CH3CH2CH3

Answer 15

propane (pro = 3)

Question 16

HDPE finds application in

Answer 16

rigid containers

Question 17

Fiber in the diet appears to benefit individuals with all the following EXCEPT

a) high blood pressure
b) diverticulitis
c) diabetes
d) scurvy

Answer 17

D

Question 18

Celluloid is a chemical modification of which natural product

a) cellulose
b) cellophane
c) ivory
d) cells

Answer 18

A

Question 19

The element whose atoms have a unique ability to bond to each other and two other kinds of atoms is

Answer 19

Carbon

Question 20

Saturated fats have

Answer 20

Primarily C-C bonds

Question 21

The parts of organic molecules that give compounds characteristic chemical and physical properties are known as

Answer 21

Functional groups

Question 22

In organic chemistry, compounds are generally classified by

Answer 22

Functional group

Question 23

Which one of the following is not one of the definitions of reduction

a) reduction is the addition of hydrogen to a substance
b) reduction is the loss of electrons from a substance
c) . Reduction is the gain of electrons by substance
d) reduction is a loss of oxygen from a substance

Answer 23

B

Question 24

In the reaction Cu+ + Fe –> Cu + Fe2+

a) Cu+ is the reducing agent
b) Cu is the reducing agent
c) Fe2+ is the reducing agents
d) Fe is the reducing agent

Answer 24

D

Question 25

Fat soluble vitamins are steed where

Answer 25

In the body

Question 26

How many different structural isomers are the for a hydrocarbon with the formula C5H12

Answer 26

3

Question 27

The compound below is classified as a) carboxylic acid b) ester c) ketone d) aldehyde O || CH3CH2CH2C-OCH2CH3

Answer 27

B

Question 28

Low-Density lipoprotein is often called "bad cholesterol" because it

Answer 28

Delivers cholesterol to the cells where it may be deposited in arteries

Question 29

Alcohols are characterized by what function group

Answer 29

Hydroxyl (ROH)

Question 30

Sodium bisulfide converts bromine (Br2) to bromide (Br-). Sodium bisulfate is a

Answer 30

Reducing agent

Question 31

Which of the following families of organic compounds does NOT contain an oxygen atom? a) alcohol b) ketone c) amine d) carboxylic acid

Answer 31

C) amine

Question 32

Vitamins can be grouped into two broad categories

Answer 32

Fat soluble & water soluble

Question 33

Processing of foods generally decreases

Answer 33

Vitamins, fiber, and minerals

Question 34

What is the percent alcohol by volume in a beverage that is 36 proof

Answer 34

18%

Question 35

How many central amino acids are there

Answer 35

9

Question 36

Aluminum is a more reactive than iron is, but iron corrodes more quickly. This occurs because

Answer 36

Aluminum develops a coating of aluminum oxide, which protects it from further reaction

Question 37

In which one of the following is the reactant undergoing reduction a) C2H4O --> C2H6O b) CO --> CO2 c) CH4 --> C d) C2H4O --> C2H4O2

Answer 37

a) C2H4O --> C2H6O

Question 38

Plastic that is used in lightweight, rustproof plumbing pipes is

Answer 38

PVC

Question 39

Which of the following is the simplest synthetic polymer a) polyesteryne b) polyvinyl chloride c) polymethane d) polyethylene

Answer 39

D) polyethylene

Question 40

Natural rubber can be made from the monomer…

Answer 40

Isoprene

Question 41

What class of nutrients in itself does not provide any energy to the human body

Answer 41

Minerals

Question 42

The chemical formula of cyclopentane is

Answer 42

C5H10

Question 43

Low density polyethylene is composed of

Answer 43

Primarily highly branched, nonlinear chains of polyethylene in the diffuse packaging arrangement

Question 44

Lactose could be considered a

Answer 44

Milk sugar

Question 45

Most fats are

Answer 45

Triglycerides

Question 46

Which of the following is not true of a catalyst a) it's used up when it catalyzes a reaction b) it will lower the activation energy for a reaction c) it will speed up the rate of a reaction d) it is not used up when It catalyzes a reaction

Answer 46

a) A catalyst is used up when it catalyzes a reaction

Question 47

Crystalline polymers are composed of

Answer 47

Highly organized polymore chains

Question 48

The compound below is O || H-C-H

Answer 48

Aldehyde

Question 49

In the vulcanization of rubber, sulfur forms

Answer 49

Cross-links between polymer chains

Question 50

Oxidizing agents are often used as

Answer 50

Anti-septics