Hydrocarbons and crude oil
Which elements make up hydrocarbons?
C and H
The formula for an alkane with 14 carbons would be
C14H30
What is the functional group of the alkene homologous series?
A carbon-carbon double bond.
Select the functional group found in alcohols
OH
Which of the following is not an addition polymer?
What is an isomer?
Molecules with the same molecular formula but different structural formula
Which one of the following is a poisonous gas produced as the result of the incomplete combustion of hydrocarbons?
CO
Why are alkenes described as unsaturated
They contain carbon-carbon double bonds and these carbon atoms do not have as many hydrogen atoms as they possibly could
Correctly display formula for the functional group found on a carboxylic acid
COOH
Which ester is produced when ethanol and ethanoic acid react?
Crude oil is a mixture of different hydrocarbons. these hydrocarbons have different boiling points. Choose the correct order of the fractions below from highest to lowest.
Fuel oil, diesel, kerosene, gasoline
Alkanes undergo substitution reactions in the presence of UV light. Write the correct reaction of ethane and chorine in the presence of UV light
CH3CH3(g) + Cl2(g) → CH3CH2Cl(g) + HCl(g)
If an alkene is added to bromine water what would the result be?
The bromine water changes from orange to colourless
Which carboxylic acid is found in an aqueous solution as vinegar?
Ethanoic acid
Which polymer is used to make non-stick pans
teflon CF2=CF2
From the four liquid fractions (fuel oil, diesel, kerosene, gasoline) produced from the fractional distillation which is the least viscous?
Gasoline
How many isomers are there for the compound C5H12?
3
Alkenes are very valuable chemicals and so are not burned as fuel. However, if they were write the correct equation for the combustion of ethene?
C2H4(g) + 3O2(g) → 2CO2(g) + 2H2O(l)
Ethanol can be oxidised in a number of ways. Which one of the following is not a method of oxidising ethanol?
Fermentation
Show the condensation polymerisation reaction
Dicarboxylic acid + A diol -> Polyester + Water
Which fraction of crude oil is used as a fuel for large ships
Fuel oil
Select the correct combination of catalyst and temperature for the cracking of hydrocarbons
Temp: 600C, Catalyst: Silicon dioxide and aluminium oxide
Describe the conditions needed to convert ethene and steam into ethanol
What name is given to the process that yeast use to turn glucose into ethanol in the absence of air?
Fermentation
Which of the following leads to problems disposing of addition polymers?
They produce toxic chemicals when burned.