Organic chem & polymers

Question 1

When wood is heated in the absence of air, the wood is destructively distilled and condensed to a liquid mixture. The primary component of this mixture is

Answer 1

Methanol

Question 2

What is the name of the compound that has the formula CH3CH3?

Answer 2

Ethane

Question 3

The compound with the formula, CHCl3, was used as an anesthetic in earlier times, but has been found to have some serious side effects. The compound is called

Answer 3

Chloroform

Question 4

Aldehydes and ketones share a common functional group. The group is the

Answer 4

Carbonyl group

Question 5

Carbon is almost always

Answer 5

Tetravalent

Question 6

The compound formed by the reaction of a carboxylic acid with an alcohol is a(n)

Answer 6

Ester

Question 7

Alcohols are characterized by which functional group?

Answer 7

Hydroxyl

Question 8

Compounds that have two alkyl groups attached to an oxygen atom are called

Answer 8

Ethers

Question 9

A bottle of an alcoholic beverage is labelled as “60 proof.” The percentage of ethanol by volume in this alcoholic beverage is

Answer 9

30%

Question 10

The formula of benzene is

Answer 10

C6H6

Question 11

Ethanol acts as a mild

Answer 11

Depressant

Question 12

The -COOH group represents the

Answer 12

carboxyl group

Question 13

The compounds CH3CH3 and CH3CH2CH3 are

Answer 13

homologs

Question 14

Compounds with a hydroxyl group attached directly to a benzene ring are called

Answer 14

Phenols

Question 15

The main ingredient in most antifreezes is

Answer 15

Ethylene glycol

Question 16

Acetylene is

Answer 16

C2H2

Question 17

Alkanes are often called

Answer 17

Saturated hydrocarbons

Question 18

Esters are often used as

Answer 18

Fragrances

Question 19

Approximately what percentage of known compounds are classified as organic compounds?

Answer 19

About 95%

Question 20

The functional group of the organic acids is the

Answer 20

Carboxyl group

Question 21

Phenols are often used as

Answer 21

Disinfectants

Question 22

Organic chemistry is most broadly defined as

Answer 22

The chemistry of the compounds of carbon

Question 23

The polymer segment ~CH2CH2CH2CH2CH2CH2CH2~ represents

Answer 23

Polyethylene

Question 24

Compounds with the same number and kinds of atoms but with different structures are known as

Answer 24

Isomers

Question 25

LDPE

Answer 25

Low-density polyethylene

Question 26

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

Answer 26

Functional groups

Question 27

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

Answer 27

Only single bonds

Question 28

Excessive ingestion of ethanol over a long period may cause

Answer 28

deterioration of the liver, physiological addiction, memory loss

Question 29

The hydrocarbon that is used in torches along with oxygen to produce very hot flames for cutting and welding is

Answer 29

Acetylene

Question 30

Organic compounds that contain a benzene ring or possess certain properties similar to those of benzene are called ________ compounds.

Answer 30

Aromatic

Question 31

Many of the flavors isolated from foods are

Answer 31

Esters

Question 32

What is the name of the compound with a formula CH3CH2CH3?

Answer 32

Propane

Question 33

Which of the following families of organic compounds does NOT contain an oxygen atom?

Answer 33

Amine

Question 34

Glycerol is an alcohol with ________ hydroxyl groups

Answer 34

Three (3)

Question 35

Name a naturally occurring polymer

Answer 35

Starch

Question 36

A polymer that conducts electricity is

Answer 36

Polyacetylene

Question 37

When a bee stings, one of the compounds it injects is

Answer 37

Formic acid

Question 38

The chemical formula of cyclopropane is

Answer 38

C3H6

Question 39

Which of the following is an alkyne?

Answer 39

Propyne