Key Area 2: Everyday Consumer Products

Question 1

Functional group that alcohols are recognised by

Answer 1

Hydroxyl group

Question 2

Hydroxyl group is the functional group present in alcohols

Answer 2

Covalent molecular compounds. -OH

Question 3

Hydroxide ions found in alkalis

Answer 3

Ionic compound. OH-

Question 4

General formula of alcohols

Answer 4

Cn H2n +1 OH

Question 5

Alcohols contain the elements

Answer 5

Carbon hydrogen and oxygen

Question 6

Naming alcohols

Answer 6

Add -ol

Question 7

Properties of alcohols

Answer 7

1. Boiling point increases with molecular size
2. Liquids at room temp
3. Increasing melting and boiling points increase their strength of intermolecular forces between molecules

Question 8

Alcohols are used as

Answer 8

Fuels, drinks , solvents and disinfectants

Question 9

Used as fuel because

Answer 9

Highly flammable

Question 10

Used as solvents because

Answer 10

Volatility

Question 11

Volatility

Answer 11

How quickly a liquid changes into a gas

Question 12

Carboxylic acids are used in the preparation of

Answer 12

preservatives, soaps and medicines

Question 13

Methanol and Ethanol burn with clean…

Answer 13

flames

Question 14

Vinegar is a solution of

Answer 14

Ethanoic acid, molecular formula CH3COOH

Question 15

Methanoic, ethanoic, propanoic and butanoic are … in water. Thereafter the solubility decreases as size …

Answer 15

1. Miscible
2. increases

Question 16

Combustion reaction equation

Answer 16

Alcohol + oxygen –> carbon dioxide + water

Question 17

Volatility

Answer 17

how quickly a liquid changes into a gas

Question 18

Volitile

Answer 18

changing from a liquid to a gas

Question 19

Isoprpyl alchol (ipa) systematic name (sometimes rubbing alcohol

Answer 19

propan - 2 - ol

Question 20

What properties of alcohols makes them suitable for fuels?

Answer 20

highly flammable

Question 21

What properties of alcohols makes them suitable solvents?

Answer 21

Volatility

Question 22

As Carboxylic acids increase in size their melting and boiling points..

Answer 22

Increase due to the increasing strength of the intermolecular forces

Question 23

Carboxylic acids can be identified by the carboxyl functional group…

Answer 23

-COOH

Question 24

Carboxylic acids can be represented by the general formula…

Answer 24

Cn H2n +1 COOH

Question 25

The carboxylic group must always be at the end of the carbon chain since...

Answer 25

there is only one spare bond

Question 26

Straight chain carboxylic acids can be systematically named from structural formula containing no more than

Answer 26

8 carbons

Question 27

Molecular formula can be

Answer 27

written

Question 28

Structural formula can be

Answer 28

drawn

Question 29

Solutions of carboxylic acids have a pH

Answer 29

less than 7

Question 30

Solutions of carboxylic acids can react with

Answer 30

metals, metal oxides, hydroxides and carbonates forming salts

Question 31

Salts are formed from

Answer 31

straight-chained carboxylic acids

Question 32

Carboxylic acids are used in the preparation of

Answer 32

preservative soaps and medicines

Question 33

Simple carboxylic acids are

Answer 33

liquid at room temperature

Question 34

Carboxylic acids have a pH of

Answer 34

2 - 5 they are weak acids

Question 35

Hydrocarbons contain

Answer 35

A compound that contains hydrogen and carbon ... only

Question 36

Vinegar is

Answer 36

Ethanoic acid