Topic 4: Apps of Organics

Question 1

Why are alkenes more reactive than alkanes?

Answer 1

Because alkenes have a double bond

Question 2

What happens to the double bond in an alkene when an addition reaction occurs?

Answer 2

It opens to allow other reactants to join

Question 3

Alkene + water reaction name

Answer 3

Hydration

Question 4

Alkene + hydrogen reaction name

Answer 4

Hydrogenation

Question 5

Alkene + halogen reaction name

Answer 5

Halgoenation

Question 6

Hydrogenation example

Answer 6

Ethane (alkane)

Question 7

Hydration example

Answer 7

Hexanol (alcohol)

Question 8

Halogenation example

Answer 8

Bromopropane (haloalkane)

Question 9

Alcohols

Answer 9

Homologous series containing the hydroxyl group

Question 10

General formula for alcohols

Answer 10

CnH2n + 1 OH

Question 11

Functional group in alcohols

Answer 11

Hydroxyl group (OH)

Question 12

Why are alcohols used in fuels?

Answer 12

Because they are highly flammable

Question 13

Alcohols are often used in…

Answer 13

Solvents

Question 14

Heat energy equation

Answer 14

Eh = cm(delta)T

Question 15

100cm3 =

Answer 15

0.1kg

Question 16

Carboxylic acids

Answer 16

Another homologous series that contains the carboxyl group

Question 17

What functional group does carboxylic acids contain?

Answer 17

Carboxyl functional group (COOH)

Question 18

General formula for carboxylic acid

Answer 18

CnH2n + 1 COOH

Question 19

What are plastics?

Answer 19

Examples of polymers

Question 20

Synthetic meaning

Answer 20

Made by something

Question 21

What are most plastics made from?

Answer 21

Crude oil chemicals

Question 22

Why is burning plastics a bad thing?

Answer 22

It releases dangerous chemicals

Question 23

Where does the name of a polymer come from?

Answer 23

The monomer inside it

Question 24

Monomer

Answer 24

Small unsaturated molecule

Question 25

Repeating unit

Answer 25

The section of a polymer that repeats

Question 26

Polymer

Answer 26

Lots of monomers joined together

Question 27

Polymersation

Answer 27

When monomers join together to form a polymer

Question 28

Addition polymersation

Answer 28

Involves one monomer joining together

Question 29

Condensation polymerisation

Answer 29

Generally involves two or more different monomers joining together

Question 30

Most common natural polymers

Answer 30

Starch and proteins

Question 31

Biodegradable meaning

Answer 31

An object that can decompose

Question 32

Are plastics biodegradable?

Answer 32

No, this can cause enviromental problems

Question 33

Miscible meaning

Answer 33

Can dissolve

Question 34

As the size of an alcohol increase, the solubility...

Answer 34

Decreases

Question 35

Combustion

Answer 35

The burning in the presence of oxygen to release heat energy

Question 36

Exothermic reaction

Answer 36

Releasing heat energy

Question 37

Endothermic reaction

Answer 37

Taking in heat energy

Question 38

What does complete combustion produce?

Answer 38

Carbon dioxide + water

Question 39

What does incomplete combustion produce

Answer 39

Carbon monoxide + water

Question 40

Is ethanol soluble?

Answer 40

Yes, it is soluble

Question 41

Ethanol pH

Answer 41

pH 7 (neutral)

Question 42

Is ethanol a conductor?

Answer 42

No

Question 43

The larger an alcohol gets, the lower the...

Answer 43

Miscibility

Question 44

The larger the size of an alcohol, the higher the...

Answer 44

Melting and boiling points

Question 45

Is ethanoic acid soluble?

Answer 45

1st four (yes)

Question 46

Is ethanoic acid a solvent?

Answer 46

Yes, it is

Question 47

Ethanoic acid pH

Answer 47

Less than 7

Question 48

Is ethanoic acid a conductor?

Answer 48

No, it is not

Question 49

What is vinegar a solution of?

Answer 49

Ethanoic acid