Chemistry - organic chemistry

Question 1

How can alcohol be produced by sugar

Answer 1

Sugar is fermented with yeast at a temperature between 5-45 degrees celsius

Question 2

How can alcohols be produced through ethene

Answer 2

The reaction of ethene and steam with a catalyst

Question 3

State one use of propanol

Answer 3

Fuel
Solvent

Question 4

Describe the process of producing a carboxylic acid from an alcohol

Answer 4

Alcohol is oxidised using an oxidising agent.

Question 5

Explain why alkenes form polymers but alkanes don’t

Answer 5

Alkanes do not have a carbon-carbon double bond (they are saturated)
So alkenes are able to bond to other molecules

Question 6

Definition of polymers

Answer 6

Small molecules join together to form a polymer / many monomers join togther to form a polymer

Question 7

Definition of biodegradable

Answer 7

Polymer breaks down (decomposes/decays) by bacteria

Question 8

Why are addition polymers not biodegradable

Answer 8

They are inert/ unreactive

Question 9

Differences between addition polymerisation and condensation polymerisation

Answer 9

In addition polymers monomers k=join together to form one large polymer and in condensation polymers one large molecule and a smaller molecule are formed