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This quiz contains 6 questions from a mix of 1 subtopics.
What is the balanced symbol equation to represent the cracking of decane into ethene and octane?
C10H22 ➔ C2H6 + C8H16
C10H22 ➔ C2H6 + C8H18
C10H24 ➔ C2H4 + C8H18
C10H22 ➔ C2H4 + C8H18
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What is the primary purpose of cracking long-chain hydrocarbons?
to increase the yield of alkenes
to create aromatic hydrocarbons
to reduce the demand for crude oil
to convert less useful fractions into more valuable smaller hydrocarbons
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Which of the following statements about cracking is true?
cracking is not used in the production of plastics
the point at which the chain breaks is always the same
cracking is essential for producing alkenes
cracking increases the length of hydrocarbon chains
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What type of catalyst is used in catalytic cracking?
iron oxide
nickel
vanadium oxide
aluminium oxide
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Which of the following is NOT a benefit of using catalysts in cracking?
enhancing efficiency
allowing for lower temperatures and pressures
increasing the rate of reaction
increasing the yield of alkenes
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What is the approximate temperature used in catalytic cracking?
1,000°C
70°C
100°C
450°C
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