5.3 Organics II

Question 1

What do Alcohol end

Answer 1

-OH

Question 2

How is Alcohol names formed

Answer 2

Starts with the number of carbon atoms

Ends with OH(Which is it’s functional group)

Question 3

Formula for Methanol and draw it

Answer 3

CH3OH

Question 4

Formula for Ethanol and draw it

Answer 4

C2H5OH

Question 5

Formula Propanol for and draw it

Answer 5

C3H7OH

Question 6

Formula for Butanol and draw it

Answer 6

C4H9OH

Question 7

What are the facts that you need to know for Hydration of ethene

Answer 7

Temperature- 300C
Pressure: 65
Catalyst : H3Po4 ( Phosphoric acid)
Raw material: Crude oil provides ethene

Question 8

What are the facts that you need to know for Fermentation of glucose

Answer 8

Temperature:30
Catalyst: Yeast
Anaerobic reaction: ( to stop microbes oxidation)
Raw Material: Sugar cane- glucose

Question 9

What is the set temperature and pressure for hydration of ethene

Answer 9

Temp- 300
Pressure:65

Question 10

What are the advantages of Hydration of ethne

Answer 10

Advantages:
- Fast
- Continuous (keeps going)
- Makes one, pure product

Question 11

What are the disadvantage of ethne

Answer 11

• High energy ( requires high temp and pressures)
• Non- renewable raw material

Question 12

What are the advantages of Fermentation of Glucouse

Answer 12

Advantages:
- requires non-renewable material
- Low energy ( requires low temp and pressure)

Question 13

What are the disadvantage of Glucouse

Answer 13

Disadvantage:
- Slow
- Not continuous ( has to be batched)
- Makes impure ethanol (mix in with yeast)

Question 14

What does ethanol become when oxidised

Answer 14

ethanoic acid

Question 15

Name the catalyst used during esterfication

Answer 15

concentrated sulfuric acid

Question 16

what is the colour change in chemical oxidation

Answer 16

Orange - Green

Question 17

What do Carboxylic acids end in

Answer 17

-COOH

Question 18

How are Carboxylic acids NAMES formed

Answer 18

starts- How many carbon atoms it has
Ends with –oic acid

Question 19

Draw Methanoic acid
Draw Ethanoic acid
Draw Propanoic acid
Draw Butanoic acid

Answer 19

Check carboxylic acids in topic notes

Question 20

What is vinegar

Answer 20

an aqueous solution of ethanoic acid

Question 21

What is the behaviour of carboxylic acids

Answer 21

• they are acid
  they are H+ donors
• they loose it’s H + and become negatively charged

Question 22

What happens to the name of a carboxylic acid when it reacts with a salt.

Answer 22

Starts as - anoic acid

then ending changes to - oate

Question 23

What would you observe when a carboxylic acid reacts with a Metal

Answer 23

• effervescence
• solid disappears

Question 24

What are Neutralisation reactions

Answer 24

Acid+ Metal/ Alkali/Carbonate

Question 25

What are esters

Answer 25

Esters are a family of organic molecules which form when a carboxylic acid and alcohol join together by loosing an H20 molecule

Question 26

When an alcohol and Carboxylic acid join together what do they loose

Answer 26

They loose a h20 molecule OH from the acid H from the alcohol

Question 27

What is the Catalyst for Esterification

Answer 27

Concentrated Sulfuric acid

Question 28

What is the process of Esterification

Answer 28

Chop off - COOH and - OH then join as - COO- between monomers

Question 29

What is the set equation for esterification

Answer 29

Carboxylic acid + Alcohol----> Ester + water

Question 30

What is the other name given for esterfication

Answer 30

Condensation

Question 31

What are the uses for Esters and why

Answer 31

they have distinctive smell - food flavourings - Perfumes

Question 32

What are three ways to get rid of polymers

Answer 32

biodegradable - Reuse - Landfill - Incinerate