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Cracking (chemistry): Quiz

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Question 1: light hydrocarbons) by the breaking of ________-carbon bonds in the precursors.
OxygenAluminiumCarbonUranium

Question 2: It is the principal industrial method for producing the lighter ________ (or commonly olefins), including ethene (or ethylene) and propene (or propylene).
AlkyneAlkeneBenzeneAlkane

Question 3: after a certain number of steps, we will obtain an ________ and hydrogen gas: CH2=CH-CH2-CH3 + H2 this is very useful since the catalyst can be recycled.
EthyleneAlkyneAlkeneAlkane

Question 4: The process also results in the slow deposition of coke, a form of ________, on the reactor walls.
OxygenAluminiumCarbonUranium

Question 5: In petroleum geology and ________, cracking is the process whereby complex organic molecules such as kerogens or heavy hydrocarbons are broken down into simpler molecules (e.g.
Periodic tableInorganic chemistryElectrochemistryChemistry

Question 6: In steam cracking, initiation usually involves breaking a ________ between two carbon atoms, rather than the bond between a carbon and a hydrogen atom.
Hydrogen bondChemical bondAromaticityCovalent bond

Question 7: The actual reaction is known as homolytic fission and produces ________, which are the basis for the economically important production of polymers.
AlkyneAlkeneAlkaneEthylene

Question 8: The thermal cracking process follows a homolytic mechanism, that is, bonds break symmetrically and thus pairs of ________ are formed.
OxygenRadical (chemistry)AntioxidantOxidative stress

Question 9: All these products have a very low content of ________ and other contaminants.
SulfurCarbonOxygenArsenic

Question 10: It is very common in ________, Europe and Asia because those regions have high demand for diesel and kerosene.
India and the Non-Aligned MovementResearch and Analysis WingLok SabhaIndia







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