practise exam revision questions on useful oil products & organic chemistry for AQA, Edexcel, OCR, WJEC, CIE and CCEA GCSE foundation tier GCSE chemistry courses at Doc Brown's Chemistry

Which word corresponds to a hydrocarbon molecule? [op-13]
1. compound
2. element
3. fraction
4. mixture
Which word corresponds to carbon? [op-14]
1. compound
2. element
3. fraction
4. mixture
Which word corresponds to a narrow boiling range of hydrocarbons from oil? [op-15]
1. compound
2. element
3. fraction
4. condensate
Which word corresponds to crude oil? [op-16]
1. compound
2. element
3. fraction
4. mixture
Which word corresponds to methane gas? [op-17]
1. compound
2. element
3. fraction
4. mixture
Which word corresponds to hydrogen? [op-18]
1. compound
2. element
3. fraction
4. mixture
Which word corresponds to a range of similar sized hydrocarbons from oil? [op-19]
1. compound
2. element
3. fraction
4. crackate
Which word corresponds to a fraction of crude oil? [op-20]
1. compound
2. element
3. evaporate
4. mixture
Which word means changing a gas into liquid? [op-21]
1. condensing
2. cracking
3. distilling
4. evaporating
Which word means breaking up big molecules into small ones? [op-22]
1. condensing
2. cracking
3. distilling
4. evaporating
Which of the following involves liquid to gas AND gas to liquid without chemical change? [op-23]
1. condensing
2. cracking
3. distilling
4. evaporating
Which word means what happens to spilt petrol? [op-24]
1. condensing
2. cracking
3. distilling
4. evaporating
Which of the following is TRUE about crude oil? [op-45]
1. formed from the decayed remains of plants and animals
2. its a renewable energy resource
3. its an infinite energy resource
4. its a compound
Which of the following is TRUE about crude oil? [op-46]
1. formed from the erosion of sedimentary rock
2. its a non-renewable energy resource
3. its an infinite energy resource
4. its a compound
Which of the following is TRUE about crude oil? [op-47]
1. formed from the erosion of sedimentary rock
2. its a renewable energy resource
3. its a finite energy resource
4. its a compound
Which of the following is TRUE about crude oil? [op-48]
1. formed from the erosion of sedimentary rock
2. its a renewable energy resource
3. its an infinite energy resource
4. its a mixture of hydrocarbons
Which of the following is TRUE about crude oil? [op-49]
1. the mixture can separated by distillation
2. its a non-fossil fuel
3. the molecules are all the same size
4. the components have the same boiling point
Which of the following is TRUE about crude oil? [op-50]
1. the mixture can't be separated by distillation
2. its a fossil fuel
3. the molecules are all the same size
4. the components have the same boiling point
Which of the following is TRUE about crude oil? [op-51]
1. the mixture can't be separated by distillation
2. its a non-fossil fuel
3. the molecules are of different size
4. the components have the same boiling point
Which of the following is TRUE about crude oil? [op-52]
1. the mixture can't be separated by distillation
2. its a non-fossil fuel
3. the molecules are the same size
4. the components have the different boiling points
Which is TRUE as a hydrocarbon molecule gets bigger (more carbon atoms in chain)? [op-53]
1. the boiling point gets higher
2. it gets more volatile (more easily vaporised)
3. it gets less viscous (less sticky)
4. it gets more easy to ignite (gets more flammable)
Which is TRUE as a hydrocarbon molecule gets bigger (more carbon atoms in chain)? [op-54]
1. the boiling point gets lower
2. it gets less volatile (less easily vaporised)
3. it gets less viscous (less sticky)
4. it gets more easy to ignite (gets more flammable)
Which is TRUE as a hydrocarbon molecule gets bigger (more carbon atoms in chain)? [op-55]
1. the boiling point gets lower
2. it gets more volatile (more easily vaporised)
3. it gets more viscous (more sticky)
4. it gets more easy to ignite (gets more flammable)
Which is TRUE as a hydrocarbon molecule gets bigger (more carbon atoms in chain)? [op-56]
1. the boiling point gets lower
2. it gets more volatile (more easily vaporised)
3. it gets less viscous (less sticky)
4. it gets less easy to ignite (gets less flammable)
Cracking is an example of? [op-57]
1. thermal decomposition
2. polymerisation
3. fractional distillation
4. combustion
Making plastics is an example of? [op-58]
1. thermal decomposition
2. polymerisation
3. fractional distillation
4. combustion
The separation of crude oil products is an example of? [op-59]
1. thermal decomposition
2. polymerisation
3. fractional distillation
4. combustion
Burning a fuel is an example of? [op-60]
1. thermal decomposition
2. polymerisation
3. fractional distillation
4. combustion
Which TRUE about the process of 'cracking' in the petrochemical oil industry? [op-61]
1. it needs a high temperature
2. it doesn't need a catalyst
3. it makes small molecules into more useful bigger molecules
4. it can make plastics
Which TRUE about the process of 'cracking' in the petrochemical oil industry? [op-62]
1. it needs a low temperature
2. it needs a catalyst
3. it makes small molecules into more useful bigger molecules
4. it can make plastics
Which TRUE about the process of 'cracking' in the petrochemical oil industry? [op-63]
1. it needs a low temperature
2. it doesn't need a catalyst
3. it makes big molecules into more useful smaller molecules like petrol
4. it can make plastics
Which TRUE about the process of 'cracking' in the petrochemical oil industry? [op-64]
1. it needs a low temperature
2. it doesn't need a catalyst
3. it makes small molecules into more useful bigger molecules like petrol
4. it can make small molecules to convert into plastics
Which corresponds to a process that has been occurring over a very long period of geological time? [op-65]
1. process J
2. process N
3. process K
4. process M
Which corresponds to a process of combustion? [op-66]
1. process J
2. process N
3. process K
4. process M
Which corresponds to a process of fractional distillation? [op-67]
1. process J
2. process N
3. process K
4. process M
Which corresponds to a process of polymerisation? [op-68]
1. process L
2. process N
3. process K
4. process M
Which corresponds to a process of cracking? [op-69]
1. process L
2. process Q
3. process K
4. process M
Which corresponds to a very slow process, sometimes described as 'non-biodegradable'? [op-70]
1. process L
2. process Q
3. process N
4. process M
Which corresponds to the cause of the 'greenhouse effect'? [op-71]
1. process L
2. process Q
3. process N
4. process M
Which corresponds to changing bigger molecules into smaller molecules with heat and a catalyst? [op-72]
1. process K
2. process Q
3. process N
4. process L
Which corresponds to changing small molecules into big molecules? [op-73]
1. process M
2. process Q
3. process N
4. process K
Which corresponds to a process that works because different hydrocarbons in oil having different boiling points? [op-74]
1. process L
2. process K
3. process N
4. process M
Which corresponds to a process that causes acid rain? [op-75]
1. process Q
2. process K
3. process N
4. process M
Which corresponds to the process that makes extra petrol that wasn't originally in the crude oil? [op-76]
1. process M
2. process K
3. process N
4. process L
Which is a chemical test for the gas hydrogen? [op-77]
1. pops with lit splint
2. turns limewater cloudy
3. relights a glowing splint
4. bleaches damp litmus paper
Which is a chemical test for the gas carbon dioxide? [op-78]
1. pops with a lit splint
2. turns limewater cloudy
3. relights a glowing splint
4. bleaches damp litmus paper
Which is a chemical test for water? [op-79]
1. turns orange potassium dichromate paper green
2. turns universal indicator orange
3. turns blue cobalt chloride paper pink
4. turns litmus paper green
Which is a chemical test for water? [op-80]
1. turns orange potassium dichromate paper green
2. turns universal indicator turquoise
3. turns litmus paper green
4. turns white copper sulfate blue
Which of the following, when fossil fuels are burned, causes acid rain? [op-81]
1. sulfur dioxide
2. carbon dioxide
3. carbon (soot)
4. carbon monoxide
Which of the following, when fossil fuels are burned causes the 'greenhouse effect'? [op-82]
1. sulfur dioxide
2. carbon dioxide
3. carbon (soot)
4. carbon monoxide
Which of the following, when fossil fuels are burned, is formed when there is lack of oxygen? [op-83]
1. sulfur dioxide
2. carbon dioxide
3. carbon (soot)
4. nitrogen dioxide
Which of the following, when fossil fuels are burned, is formed when there is lack of oxygen? [op-84]
1. sulfur dioxide
2. carbon dioxide
3. nitrogen dioxide
4. carbon monoxide
At 1 the crude oil is a ..?.. of hydrocarbons. [op-85]
1. mixture
2. volatiles
3. compounds
4. viscous
At 2 the hydrocarbons are? [op-86]
1. big molecules
2. volatile
3. not very flammable
4. viscous
At 1-4 the hydrocarbons are a ..?.. of hydrogen and carbon. [op-87]
1. atom
2. mixture
3. compound
4. fraction
At 4 the hydrocarbons are very? [op-88]
1. volatile
2. runny
3. flammable
4. viscous
At 1 the hydrocarbon mixture is? [op-89]
1. dark in colour
2. very flammable
3. like diesel
4. very runny
At 2 the hydrocarbon mixture is? [op-90]
1. dark in colour
2. very flammable
3. like diesel
4. viscous
At 3 the hydrocarbon mixture is? [op-91]
1. very dark in colour
2. very flammable
3. like diesel
4. very viscous
At 4 the hydrocarbon mixture is? [op-92]
1. very light in colour
2. very flammable
3. like diesel
4. not very flammable
... Substance X is a hydrocarbon with a low boiling point.
... Substance Y is a hydrocarbon with a high boiling point.
Which statement is TRUE about the hydrocarbons X and Y? [op-93]
1. X has smaller molecules than Y
2. X is less flammable than Y
3. X is less volatile than Y
4. X has more carbon atoms than Y
Substance X is a hydrocarbon with a low boiling point.
Substance Y is a hydrocarbon with a high boiling point.
Which statement is TRUE about the hydrocarbons X and Y? [op-94]
1. X has larger molecules than Y
2. X is more flammable than Y
3. X is less volatile than Y
4. X has more carbon atoms than Y
Substance X is a hydrocarbon with a low boiling point.
Substance Y is a hydrocarbon with a high boiling point.
Which statement is TRUE about the hydrocarbons X and Y? [op-95]
1. X has larger molecules than Y
2. X is less flammable than Y
3. X is more volatile than Y
4. X has more carbon atoms than Y
Substance X is a hydrocarbon with a low boiling point.
Substance Y is a hydrocarbon with a high boiling point.
Which statement is TRUE about the hydrocarbons X and Y? [op-96]
1. X has larger molecules than Y
2. X is less flammable than Y
3. X is less volatile than Y
4. X has fewer carbon atoms than Y
Substance X is a hydrocarbon with a low boiling point.
Substance Y is a hydrocarbon with a high boiling point.
Which statement is TRUE about the hydrocarbons X and Y? [op-97]
1. X is less viscous than Y
2. X is less flammable than Y
3. X is less volatile than Y
4. X has more carbon atoms than Y
The main waste products of the combustion of a hydrocarbon fuel are? [op-98]
1. carbon and water
2. carbon dioxide and water
3. carbon dioxide and hydrogen
4. carbon monoxide and water
The 'clean' or complete combustion of methane (natural gas) produces? [op-99]
1. carbon dioxide and hydrogen
2. carbon and water
3. carbon dioxide and water
4. carbon monoxide and water
The combustion of hydrogen produces? [op-100]
1. carbon dioxide only
2. carbon and water
3. carbon dioxide and water
4. only water
Which is a suitable physical test for a liquid thought to be pure water by seeing if it? [op-119]
1. boils at a particular temperature
2. mixes with oil
3. dissolves salt
4. freezes
Which is a definition of an atom? [op-120]
1. the smallest particles of matter that make up substances
2. collection of substances which keep their own properties and easily separated
3. two or more atoms joined together to make a bigger particle
4. two or more elements chemically joined together and not easily separated
Which is a definition of a mixture? [op-121]
1. the smallest particles of matter that make up substances
2. collection of substances which keep their own properties and easily separated
3. two or more atoms joined together to make a bigger particle
4. two or more elements chemically joined together and not easily separated
Which is a definition of a molecule? [op-122]
1. the smallest particles of matter that make up substances
2. collection of substances which keep their own properties and easily separated
3. two or more atoms joined together to make a bigger particle
4. two or more elements chemically joined together and not easily separated
Which is a definition of a compound? [op-123]
1. the smallest particles of matter that make up substances
2. collection of substances which keep their own properties and easily separated
3. two or more atoms joined together to make a bigger particle
4. two or more elements chemically joined together and not easily separated
Which of the following means a 'hydrocarbon'? [op-124]
1. a mixture of carbon and hydrogen atoms
2. a molecule made of carbon and hydrogen atoms chemically combined
3. a mixture of carbon and hydrogen molecules
4. a molecule made from reacting carbon and water
Which statement is TRUE about polymers (plastics)? [op-125]
1. poly(ethene) is readily broken down by microorganisms
2. poly(propene) is not easily shaped when softened by heat
3. poly(ethene) is used for plastic bags
4. poly(propene) is not strong enough to make into ropes
Which statement is TRUE about polymers (plastics)? [op-126]
1. poly(ethene) is readily broken down by microorganisms
2. poly(propene) is not easily shaped when softened by heat
3. poly(ethene) is too expensive to use for plastic bags
4. poly(propene) is strong enough to make into ropes
Which statement is TRUE about polymers (plastics)? [op-127]
1. poly(ethene) is not readily broken down by microorganisms
2. poly(propene) is not easily shaped when softened by heat
3. poly(ethene) is too expensive to use for plastic bags and bottles
4. poly(propene) is not strong enough to make into ropes
Which statement is TRUE about polymers (plastics)? [op-128]
1. poly(ethene) is readily broken down by microorganisms
2. poly(propene) is easily shaped when softened by heat
3. poly(ethene) is too expensive to use for bottles
4. poly(propene) is too weak to make into ropes
Which statement is TRUE about polymers (plastics)? [op-129]
1. poly(ethene) is readily broken down by microorganisms
2. poly(propene) is not easily shaped when softened by heat
3. poly(ethene) is cheap to use for plastic bottles
4. poly(propene) is too weak to make into ropes
Which statement is TRUE about polymers (plastics)? [op-130]
1. poly(ethene) is readily broken down by microorganisms
2. poly(propene) is not easily shaped when softened by heat
3. poly(ethene) is too expensive to use for plastic bottles
4. poly(propene) is strong enough to make into crates
Which statement is TRUE about polymers (plastics)? [op-131]
1. poly(propene) is not biodegradable
2. poly(propene) is not easily shaped when softened by heat
3. poly(ethene) is too expensive to use for plastic bottles
4. poly(propene) is not strong enough to make into crates
Which statement is TRUE about polymers (plastics)? [op-132]
1. poly(propene) is biodegradable
2. poly(ethene) is easily shaped when softened by heat
3. poly(ethene) is too expensive to use for plastic bottles
4. poly(propene) is not strong enough to make into crates
Which explains why the gasoline fraction is used for petrol? [op-133]
1. not too flammable and not too viscous
2. quite viscous but will not freeze or evaporate easily
3. a liquid that is easily vapourised and not too viscous
4. can be liquified under pressure but easily changes back to a gas
Which explains why the refinery gas fraction is used for 'camping gaz' burners? [op-134]
1. not too flammable and not too viscous
2. quite viscous but will not freeze or evaporate easily
3. a liquid that is easily vapourised and not too viscous
4. can be liquified under pressure but easily changes back to a gas
Which explains why the fuel oil fraction is used for central heating? [op-135]
1. not too flammable and not too viscous
2. quite viscous but will not freeze or evaporate easily
3. a liquid that is easily vapourised and not too viscous
4. can be liquified under pressure but easily changes back to a gas
Which explains why the lubricating oil fraction is used as a lubricant? [op-136]
1. not too flammable and not too viscous
2. quite viscous but will not freeze or evaporate easily
3. a liquid that is easily vapourised and not too viscous
4. can be liquified under pressure but easily changes back to a gas
Which represents an addition polymerisation reaction? [op-137]
1. ethene ==> poly(ethene)
2. methane + oxygen ==> carbon dioxide + water
3. hexane ==> butane + ethene
4. ethene + bromine ==> dibromoethane
Which represents a combustion reaction? [op-138]
1. ethene ==> poly(ethene)
2. methane + oxygen ==> carbon dioxide + water
3. hexane ==> butane + ethene
4. ethene + bromine ==> dibromoethane
Which represents a cracking reaction? [op-139]
1. ethene ==> poly(ethene)
2. methane + oxygen ==> carbon dioxide + water
3. hexane ==> butane + ethene
4. ethene + bromine ==> dibromoethane
Which represents a reaction that tests for ethene? [op-140]
1. ethene ==> poly(ethene)
2. ethene + oxygen ==> carbon dioxide + water
3. hexane ==> butane + ethene
4. ethene + bromine ==> dibromoethane
Below is a list of processes involved in the petrochemical industry.
1. combustion , 2. cracking , 3. drilling , 4. fractional distillation , 5. polymerisation
Which is the correct order to produce a plastic? [op-141]
1. 3 2 4 5
2. 2 5 1 4
3. 3 4 2 5
4. 4 2 3 5
Carbon monoxide has the formula CO. It is therefore? [op-142]
1. an atom
2. an element
3. a mixture
4. a compound
Which is a single compound? [op-143]
1. methane
2. carbon
3. lubricating oil
4. hydrogen
Which is a solid element? [op-144]
1. methane
2. carbon
3. bitumen tar
4. wax
Which is a mixture? [op-145]
1. methane
2. carbon
3. product(s) of burning methane
4. hydrogen
Which is a particularly toxic gas sometimes produced by faulty gas fires? [op-146]
1. methane
2. carbon dioxide
3. nitrogen
4. carbon monoxide
Which represents a thermal decomposition reaction? [op-147]
1. ethene ==> poly(ethene)
2. methane + oxygen ==> carbon dioxide + water
3. hexane ==> butane + ethene
4. ethene + bromine ==> dibromoethane
Which is a thermal decomposition reaction in the petrochemical industry? [op-148]
1. combustion
2. addition polymerisation
3. fractional distillation
4. cracking
What is formed by the complete combustion of wax? [op-161]
1. water + carbon dioxide
2. water only
3. carbon dioxide only
4. carbon monoxide and water
What may be formed by the incomplete combustion of petrol? [op-162]
1. water + carbon dioxide
2. water, carbon dioxide and carbon monoxide
3. only carbon dioxide
4. only water
Drips of a colourless liquid were seen at the end of a car exhaust. The colourless liquid is most likely to be? [op-163]
1. unburned petrol
2. engine oil
3. water
4. partly burned petrol
A sample of gas from a car exhaust was tested with limewater and gave a white precipitate. The gas was most likely to be? [op-164]
1. carbon monoxide
2. unburned petrol vapour
3. partly burned petrol vapour
4. carbon dioxide
Poly(ethene) and poly(propene) are described as examples of? [op-165]
1. plastics
2. fuels
3. hydrocarbons
4. crackates
Petrol and diesel are best described as examples of? [op-165]
1. plastics
2. fuels
3. lubricants
4. crackates
Incomplete combustion can happen when there is a shortage of? [op-167]
1. carbon dioxide
2. fuel
3. oxygen
4. carbon monoxide
Biodegradable plastics are environmentally friendly because they? [op-168]
1. are structurally weak
2. don't produce harmful fumes when burned
3. are not attacked by fungus
4. rot away in a land fill site
Which is a hydrocarbon molecule? [op-169]
1. C₂H₆
2. C₂H₅Br
3. C₂H₅OH
4. CH₃COOH
$fractionQ.jpg$ The following 'carbon numbers' correspond to gasoline, bottled gas, bitumen and kerosene. Which is likely to be gasoline? [op-170]
1. 3 carbon atoms
2. 8 carbon atoms
3. 15 carbon atoms
4. over 40 carbon atoms
$fractionQ.jpg$ The following 'carbon numbers' correspond to gasoline, bottled gas, bitumen and kerosene. Which is likely to be kerosene? [op-171]
1. 3 carbon atoms
2. 8 carbon atoms
3. 15 carbon atoms
4. over 40 carbon atoms
$fractionQ.jpg$ The following 'carbon numbers' correspond to gasoline, bottled gas, bitumen and kerosene. Which is likely to be bitumen? [op-172]
1. 3 carbon atoms
2. 8 carbon atoms
3. 15 carbon atoms
4. over 40 carbon atoms
$fractionQ.jpg$ The following 'carbon numbers' correspond to gasoline, bottled gas, bitumen and kerosene. Which is likely to be bottled gas? [op-173]
1. 3 carbon atoms
2. 8 carbon atoms
3. 15 carbon atoms
4. over 40 carbon atoms
$fractionQ.jpg$ The 'carbon numbers' correspond to molecules with different uses: for road surfacing, petrol engine fuel, camping gas and diesel engine fuel. Which best matches petrol fuel? [op-174]
1. 3 carbon atoms
2. 8 carbon atoms
3. 20 carbon atoms
4. over 40 carbon atoms
$fractionQ.jpg$ The 'carbon numbers' correspond to molecules with different uses: for road surfacing, petrol engine fuel, camping gas and diesel engine fuel. Which best matches diesel fuel? [op-175]
1. 3 carbon atoms
2. 8 carbon atoms
3. 20 carbon atoms
4. over 40 carbon atoms
$fractionQ.jpg$ The 'carbon numbers' correspond to molecules with different uses: for road surfacing, petrol engine fuel, camping gas and diesel engine fuel. Which best matches road surfacing material? [op-176]
1. 3 carbon atoms
2. 8 carbon atoms
3. 20 carbon atoms
4. over 40 carbon atoms
$fractionQ.jpg$ The 'carbon numbers' correspond to molecules with different uses: for road surfacing, petrol engine fuel, camping gas and diesel engine fuel. Which best matches camping gas? [op-177]
1. 3 carbon atoms
2. 8 carbon atoms
3. 20 carbon atoms
4. over 40 carbon atoms
$fractionQ.jpg$ The following 'carbon numbers' correspond to hydrocarbon molecules with different characteristics. These are: a not very flammable oily liquid, a light flammable liquid, a thick viscous (sticky) liquid, and a flammable gas. Which corresponds to a light flammable liquid? [op-178]
1. 3 carbon atoms
2. 8 carbon atoms
3. 15 carbon atoms
4. 30 carbon atoms
$fractionQ.jpg$ The following 'carbon numbers' correspond to hydrocarbon molecules with different characteristics. These are: a not very flammable oily liquid, a light flammable liquid, a thick viscous (sticky) liquid, and a flammable gas. Which corresponds to a not very flammable liquid? [op-179]
1. 3 carbon atoms
2. 8 carbon atoms
3. 15 carbon atoms
4. 30 carbon atoms
$fractionQ.jpg$ The following 'carbon numbers' correspond to hydrocarbon molecules with different characteristics. These are: a not very flammable oily liquid, a light flammable liquid, a thick viscous (sticky) liquid, and a flammable gas. Which corresponds to a thick viscous liquid? [op-180]
1. 3 carbon atoms
2. 8 carbon atoms
3. 15 carbon atoms
4. 30 carbon atoms
$fractionQ.jpg$ The following 'carbon numbers' correspond to hydrocarbon molecules with different characteristics. These are: a not very flammable oily liquid, a light flammable liquid, a thick viscous (sticky) liquid, and a flammable gas. Which corresponds to a flammable gas? [op-181]
1. 3 carbon atoms
2. 8 carbon atoms
3. 15 carbon atoms
4. 30 carbon atoms
Which is a plastic? [op-182]
1. petrol
2. polythene
3. paraffin
4. propanol
Which is a plastic? [op-183]
1. petrol
2. paraffin
3. polypropene
4. propanol
Which is a plastic? [op-184]
1. PDB
2. ASE
3. DDT
4. PVC

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m/c Quiz on "OIL and its USEFUL PRODUCTS" (easier-foundation tier GCSE level @ doc brown's chemistry)