Craville Studies
"The website for subject links, tips and summaries"
You are on the solutions page. This page gives away the answers to the quiz. If you wish to complete the test, click here.
Ethylene is produced by cracking from natural gas or crude oil Ethylene and ethane are interchangeable terms Catalytic cracking is the process in which high molecular weight fractions of crude oil are broken down Thermal cracking uses steam and hot metal tubes Ethylene and ethene are interchangeable. Ethane only contains a single carbon bond, ethylene and ethene have double carbon bonds.
Ethylene is produced by cracking from natural gas or crude oil Ethylene and ethane are interchangeable terms Catalytic cracking is the process in which high molecular weight fractions of crude oil are broken down Thermal cracking uses steam and hot metal tubes
Ethylene and ethene are interchangeable. Ethane only contains a single carbon bond, ethylene and ethene have double carbon bonds.
CH2=CH2 C2H4 . All of the above.
Low Density Polyethylene (LDPE) High Density Polyethylene (HDPE) Polyvinylchloride (PVC) Polystyrene
4. What is the systematic name of the monomer in the diagram?
Enthenylbenzene Styrene Polystyrene Chloroethene These ones you just have to remember.
Enthenylbenzene Styrene Polystyrene Chloroethene
These ones you just have to remember.
Ethylene can be produced from ethanol by dehydration Ethanol can be produced from ethylene by dehydration Ethylene can be produced from ethanol by condensation None of the above Only (a) is true.
Ethylene can be produced from ethanol by dehydration Ethanol can be produced from ethylene by dehydration Ethylene can be produced from ethanol by condensation None of the above
Only (a) is true.
Sugar Wood Water Cotton This tricks a lot of people. Cotton is 90% cellulose whilst wood is only 50%. Sugar is mainly glucose, not cellulose and water is just water.
Sugar Wood Water Cotton
This tricks a lot of people. Cotton is 90% cellulose whilst wood is only 50%. Sugar is mainly glucose, not cellulose and water is just water.
7. In regards to the reaction shown in the diagram, which of the following statements is false?
Sulfuric Acid is the catalyst Ethanol is a gas Ethanol is produced in the reaction All of the above (a) is true as H2SO4 is indeed sulfuric acid. (b) is also true. Many people always just assume ethanol is a liquid but the question is referring to this reaction, in which ethanol is listed as a gas. (c) is false as ethanol is the starting product in this reaction. It is ethylene, not ethanol, that is produced in this reaction.
Sulfuric Acid is the catalyst Ethanol is a gas Ethanol is produced in the reaction All of the above
(a) is true as H2SO4 is indeed sulfuric acid.
(b) is also true. Many people always just assume ethanol is a liquid but the question is referring to this reaction, in which ethanol is listed as a gas.
(c) is false as ethanol is the starting product in this reaction. It is ethylene, not ethanol, that is produced in this reaction.
8. Which of the following statements about ethanol is false?
Ethanol is able to dissolve polar molecules and ionic substances because of its hydrophilic OH group Ethanol is able to dissolve non-polar molecules because of its hydrophobic hydrocarbon chain Ethanol is the least toxic of the alcohols None of the above All of the above statements are true, therefore, none of them are false.
Ethanol is able to dissolve polar molecules and ionic substances because of its hydrophilic OH group Ethanol is able to dissolve non-polar molecules because of its hydrophobic hydrocarbon chain Ethanol is the least toxic of the alcohols None of the above
All of the above statements are true, therefore, none of them are false.
Combustion Fermentation Enzymic Breakdown Reverse De-catalysation Need to know what each of these are in order to answer this question. Reverse de-catalysation is made up.
Combustion Fermentation Enzymic Breakdown Reverse De-catalysation
Need to know what each of these are in order to answer this question. Reverse de-catalysation is made up.
Australia Brazil Germany South Africa Indeed, Brazil has been using ethanol as its primary fuel for cars since the 1970's.
Australia Brazil Germany South Africa
Indeed, Brazil has been using ethanol as its primary fuel for cars since the 1970's.
Distillation Cracking Oxidation Reduction Need to remember the learning aid: OILRIG. Oxidation Is Loss, Reduction Is Gain.
Distillation Cracking Oxidation Reduction
Need to remember the learning aid: OILRIG.
Oxidation Is Loss, Reduction Is Gain.
Lithium Magnesium Lead Silver The list is already in order from most reactive to least reactive.
Lithium Magnesium Lead Silver
The list is already in order from most reactive to least reactive.
Reduction occurs at the cathode Oxidation occurs at the anode Electrons flow from the cathode to the anode All the above statements are true Electrons actually flow from the anode to the cathode.
Reduction occurs at the cathode Oxidation occurs at the anode Electrons flow from the cathode to the anode All the above statements are true
Electrons actually flow from the anode to the cathode.
Electrode Electrolyte Salt Bridge Ion Dissolving Fluid Another one that you just need to know.
Electrode Electrolyte Salt Bridge Ion Dissolving Fluid
Another one that you just need to know.
Twins Isotopes Transuranic Elements Ions Ions are atoms that have gained or lost an electron. Transuranic elements are artificial elements with an atomic number greater than 92. Twins are not a scientific term used in chemistry.
Twins Isotopes Transuranic Elements Ions
Ions are atoms that have gained or lost an electron. Transuranic elements are artificial elements with an atomic number greater than 92. Twins are not a scientific term used in chemistry.
Radiation is commonly linked to superpowers in mice Beta particles have a range of about 100m in air Gamma rays are the strongest of the the four radiation types Alpha particles are helium nuclei (a) is obviously false. (b) is false as beta particles have a range of about 100cm, not 100m. (c) is false because although gamma rays are the strongest form of radiation, there are only three types, not four. (d) is correct.
Radiation is commonly linked to superpowers in mice Beta particles have a range of about 100m in air Gamma rays are the strongest of the the four radiation types Alpha particles are helium nuclei
(a) is obviously false.
(b) is false as beta particles have a range of about 100cm, not 100m.
(c) is false because although gamma rays are the strongest form of radiation, there are only three types, not four.
(d) is correct.
17. Which of the following statements is TRUE based on the below reaction?
Uranium-238 is non-fissile All uranium isotopes are fissile, hence nuclear power A neutron is lost in the process This equation does not balance (a) is the correct answer as we can see that, Uranium-238, when bombarded with a neutron, does not split but forms a new element. Because it does not split it is said to be non-fissile.
Uranium-238 is non-fissile All uranium isotopes are fissile, hence nuclear power A neutron is lost in the process This equation does not balance
(a) is the correct answer as we can see that, Uranium-238, when bombarded with a neutron, does not split but forms a new element. Because it does not split it is said to be non-fissile.
Velodrome Cyclotron Linear Accelerators Nuclear Reactors A cyclotron, linear accelerator and nuclear reactor are all used to make transuranic elements.
Velodrome Cyclotron Linear Accelerators Nuclear Reactors
A cyclotron, linear accelerator and nuclear reactor are all used to make transuranic elements.
Photographic film Cyclotron Cloud Chamber Geiger-Muller Counter Just need to know the ways radiation can be detected.
Photographic film Cyclotron Cloud Chamber Geiger-Muller Counter
Just need to know the ways radiation can be detected.
Its bad-ass attitude Its penetrating ability Its ionising ability It is uncontrollable Once again, you just need to know that the reason radiation is dangerous is its ionising ability.
Its bad-ass attitude Its penetrating ability Its ionising ability It is uncontrollable
Once again, you just need to know that the reason radiation is dangerous is its ionising ability.
