Chemistry /GCSE Chemistry 11L1: 1.5 Products from oil
What is the structure in which fractional distillation occurs in?
A fractionating column
Tap or swipe ↕ to flip
Swipe ←→Navigate
SSpeak
FFocus
1/28
Key Terms
Term
Definition
What is the structure in which fractional distillation occurs in?
A fractionating column
What is the process of which all of the products are separated from crude oil?
Factional Distillation
What are the products of cracking?
Alkanes and alkenes
What is the name of the process that breaks down long-chain hydrocarbons into shorter, more useful hydrocarbons?
Cracking
What is the general formula for alkenes?
CnH2n
What is the catalyst present when reacting ethene with steam to form ethanol?
Phosphoric acid
Related Flashcard Decks
Study Tips
- Press F to enter focus mode for distraction-free studying
- Review cards regularly to improve retention
- Try to recall the answer before flipping the card
- Share this deck with friends to study together
Term | Definition |
---|---|
What is the structure in which fractional distillation occurs in? | A fractionating column |
What is the process of which all of the products are separated from crude oil? | Factional Distillation |
What are the products of cracking? | Alkanes and alkenes |
What is the name of the process that breaks down long-chain hydrocarbons into shorter, more useful hydrocarbons? | Cracking |
What is the general formula for alkenes? | CnH2n |
What is the catalyst present when reacting ethene with steam to form ethanol? | Phosphoric acid |
During fermentation, sugar is converted into what? | Ethanol and carbon dioxide |
What is polymerisation? | When many small alkene molecules (monomers) join together to form polymers |
Plastics are an example of what kind of polymers? | Synthetic polymers |
What is added to a plastic bag to make it biodegradable? | Cornstarch |
Are polymers saturated with single bonds or unsaturated with double bonds? | Saturated with single bonds. |
Many polymers are not biodegradable, what does this mean? | That they are not broken down by microbes |
What are many polymers made from? | Fossil fuels |
What is the molecular formula for Ethanol? | C2H5OH (small numbers) |
Why is Ethanol not a hydrocarbon? | Because it contains oxygen as well as hydrogen and carbon |
Which two ways can you make Ethanol? | Fermentation of a sugar solution and the reaction of ethene with steam |
What is a continuous process? | This means that reactants are constantly being put in at one end of the reaction vessel and products are constantly being taken out at the other end of the reaction vessel |
What is a batch process? | This means the reaction vessel must be emptied and cleaned when the reaction is complete and then refilled with a new batch |
What is the name of the process when seeds are crushed and then the crushed material is squeezed to form oil? | Pressing |
How can oil that has been extracted by distillation be refined (made purer)? | By removing water and other impurities |
An example of one fossil fuel? | Coal or Oil or Natural Gas |
Where do Biodiesels come from? | Plants which have had their oil extracted |
Why do chemist crack oil? | To get the more useful materials out of the oil |
What is the general formula for alkenes? | CnH2n+2 |
Why is a catalyst used in cracking? | To provide the hydrocarbon gases for a convenient surface for the cracking to take place. |
Why can polymers be difficult to dispose of? | They do not break down very easily. |
What is formed when ethene reacts with steam? | Only ethanol |
How do we know alkenes are unsaturated? | They have double bonds |