WorksheetsTopic 5 - Crude oil and fuel
Total questions: 15
Worksheet time: 9mins
What process is used to separate crude oil in hydrocarbons with different chain lengths?
distillation
fractional distillation
cracking
polymerisation
Fractional distillation separates crude oil based on the different __________ of the molecules in the mixture
melting point
boiling point
freezing point
chemical reactivity
Molecules collected at the bottom of the fractionating column tend to be...
more viscous, less flammable and less volatile
less viscous, more flammable and more volatile
more viscous, more flammable and less volatile
less viscous, less flammable and more volatile
Molecules collected at the bottom of the fractionating column tend to be...
more viscous, less flammable and less volatile
less viscous, more flammable and more volatile
more viscous, more flammable and less volatile
less viscous, less flammable and more volatile
Name the following hydrocarbon
butane
hexane
heptane
hexene
When testing for alkenes (unsaturation) bromine water turns from...
orange --> blue/black
colourless --> pink
orange --> colourless
orange --> clear
Crude oil is made up of:
Ethane
Butane
A mixture of different hydrocarbons
Extremely large hydrocarbons which are broken up once extracted
Crude oil is made up of:
Ethane
Butane
A mixture of different hydrocarbons
Extremely large hydrocarbons which are broken up once extracted
What process is used to split long chain hydrocarbons into shorter chain hydrocarbons?
distillation
fractional distillation
cracking
polymerisation
Cracking is a process used to break up hydrocarbon chains because the products are more (a) than the reactants.
How many molecules of oxygen (O2) are needed to combust 1 mole of butane?
4.5
5.0
5.5
6.0
6.5
How many molecules of oxygen (O2) are needed to combust 1 mole of propane?
4.5
5.0
5.5
6.0
6.5
what is the correct formula for
1) an alkane
2) an alkene
1) CnH2n
2) CnH2n+2
1) CnH2n
2) CnHn+2
1) CnHn+2
2) CnH2n
1) CnH2n+2
2) CnH2n
