Organic chemistry - paper 1

Question 1

How are polymers made?

Answer 1

made by joining lots of molecules together in long chains

Question 2

What are addition polymers made from?

Answer 2

unsaturated monomers

Question 3

What are polymers?

Answer 3

substances of high average relative molecular mass made by joining up lots of repeating monomers

Question 4

Explain monomers?

Answer 4

make up addition polymers and have double covalent bonds

Question 5

How are polymer chains formed?

Answer 5

lots of unsaturated monomer molecules (alkenes) can open up their carbon- carbon double bonds and join together to form polymer chains - addition polymerisation

Question 6

What is needed for an addition polymerisation reaction to take place

Answer 6

pressure and catalyst

Question 7

What does ethene become in addition polymerisation?

Answer 7

poly(ethene)

Question 8

What are most addition polymers?

Answer 8

inert - dont react easily

Question 9

Why are most addition polymers inert?

Answer 9

becuase carbon-carbon bonds in polymer chain are very strong and arnt easily broken

Question 10

addition polymers take a long time to ….

Answer 10

biodegrade. hard to get rid of so best thing is to reuse them

Question 11

What are the alcohols functional group?

Answer 11

OH

Question 12

What is the general formula?

Answer 12

CnH2n+2OH

Question 13

What are the first four alcohols?

Answer 13

methanol, ethanol, propanol, butanol

Question 14

What can alcohols be oxidised to form?

Answer 14

carboxylic acids

Question 15

What do you need to make carboxylic acids?

Answer 15

potassium dichromate (VI) in dilute sulfuric acid

Question 16

ethanol + potassium dichromate(VI) in dilute sulfuric acid = ?

Answer 16

ethanoic acid