WorksheetsOrganic Chemistry
Total questions: 30
Worksheet time: 17mins
Hydrocarbons, the simplest family of carbon compounds, are made from these two elements:
Hydrogen and Copper
Helium and Carbon
Hydrogen and Carbon
Pentane is an alkane with____ carbon atoms
3
5
15
50
Name the compound CH4
(a)
Name the compound CH2=CH2
(a)
What is the general formula of the alkenes?
CnH2n+1
CnH2n+2
CnH2n
CnH2n+1OH
What is fractional distillation?
a process used to separate crude oil
a process used to burn up fuels
a way to make different products
how oil is extracted from the ground
Fractional distillation separates crude oil based on the different __________ of the molecules in the mixture
melting point
boiling point
freezing point
chemical reactivity
A fraction of crude oil is made up of:
Hydrocarbons of similar chain lengths
Numbers
Large hydrocarbons
Alkenes only
Crude oil is made up of:
Ethane
Butane
A mixture of different hydrocarbons
Extremely large hydrocarbons which are broken up once extracted
What process happens at each level in the fractionating column?
Evaporation
Condensation
Combustion
What process happens as the crude oil enters the fractionating column?
Evaporation
Condensation
Combustion
Where do short chain hydrocarbons collect?
At the top
In the middle
At the bottom
Where do long chain hydrocarbons collect?
At the top
In the middle
At the bottom
Shorter hydrocarbons have:
Higher boiling points
Lower boiling points
What kind of molecule is this? HINT: Look at the bonds.
Is this hydrocarbon saturated or unsaturated? HINT: Look at the bonds.
Hydrocarbon that contains at least one carbon-carbon double covalent bond.
alkane
alkene
alkyne
