Question detail
What is the main effect of cracking on hydrocarbon chain length?
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
MCQ
Type
practice
Style
Topic
Alkanes
Question
- A. It increases the average chain length of hydrocarbons
- B. It produces hydrocarbons with a wider range of chain lengths
- C. It decreases the average chain length of hydrocarbons
- D. It has no effect on the chain length of hydrocarbons
Answer
It produces hydrocarbons with a wider range of chain lengths
Explanation
Cracking produces hydrocarbons with a wider range of chain lengths by breaking down larger molecules into smaller ones. This allows for the creation of various useful products that can be tailored to specific applications, enhancing the versatility of hydrocarbon fuels.
Common mistake
Misunderstanding the Purpose of Cracking
Students often think cracking is only about breaking down large hydrocarbons without understanding its purpose.
Cracking is used to convert less useful long-chain hydrocarbons into more useful short-chain hydrocarbons, which are in higher demand as fuels and feedstocks. This is achieved through thermal or catalytic processes that break C-C bonds, resulting in products like alkenes and shorter alkanes that are more efficient for combustion and chemical synthesis.
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