Applications of Organics

Question 1

Why are alcohols used as fuels?

Answer 1

Because they are highly flammable and burn with very clean flames

Question 2

What is the solubility of alcohols

Answer 2

The first 3 are very miscible in water but solubility decreases with size. Alcohols are common solvents

Question 3

What is the alcohols functional group?

Answer 3

The hydroxyl branch - OH

Question 4

What is the general formula for alcohols

Answer 4

CnH2n +1OH

Question 5

What is the 1st alcohol

Answer 5

methanol

Question 6

what is the 2nd alcohol

Answer 6

ethanol

Question 7

3rd alcohol

Answer 7

propanol

Question 8

4th alcohol

Answer 8

butanol

Question 9

pentanol

Answer 9

5th alcohol

Question 10

hexanol

Answer 10

6th alcohol

Question 11

what is the 7th alcohol

Answer 11

heptanol

Question 12

octanol

Answer 12

8th alcohol

Question 13

What is the formula for calculating energy released?

Answer 13

Eh=cmΔt

Question 14

What is the carboxyl functional group

Answer 14

COOH

Question 15

what is the general formula for carboxylic acids

Answer 15

CnH2n + COOH

Question 16

4th carboxylic acid

Answer 16

butanoic acid

Question 17

What are plastics made from?

Answer 17

Most plastics and synthetic materials are made from oil

Question 18

What is a synthetic material

Answer 18

a man - made material

Question 19

Give 3 advantages of plastics

Answer 19

-Durability
-Cheap
-Can be mass produced

Question 20

3 disadvantages of plastics

Answer 20

-not biodegradable
- non-renewable
-polluting

Question 21

3 uses of plastics

Answer 21

PVC - window frames
Polyester - clothing
Polystyrene - packaging

Question 22

Define biodegradable

Answer 22

able to naturally decompose

Question 23

Give an example of a polymer

Answer 23

plastics

Question 24

Define polymer

Answer 24

a very long molecule formed by the joining of mayn shorter molecules called monomers

Question 25

Define monomer

Answer 25

the smaller, unsaturated molecules that join to form longer saturated polymers.

Question 26

Define repeating unit

Answer 26

the part of the polymer whose repetition would result in a complete polymer chain

Question 27

Define addition polymerisation

Answer 27

The name given to the chemical reaction where many monomers are joined to form a polymer

Question 28

What is an exothermic reaction

Answer 28

A reaction or process that releases heat energy

Question 29

Endothermic

Answer 29

A reaction or process that takes in heat energy