Question detail
What is the main purpose of cracking in the petroleum industry?
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. To increase the viscosity of crude oil
- B. To produce more useful hydrocarbons from larger alkanes
- C. To remove sulfur from crude oil
- D. To separate crude oil into fractions
Answer
To produce more useful hydrocarbons from larger alkanes
Explanation
Cracking is used to convert larger, less useful alkanes into smaller, more useful hydrocarbons, such as alkenes and smaller alkanes, which are in higher demand.
Common mistake
Incorrect Cracking Equation
Students often write the cracking equation without balancing the number of atoms on both sides, leading to incorrect stoichiometry.
To fix this, ensure that the number of each type of atom is the same on both sides of the equation. For example, when cracking hexane (C6H14) into ethene (C2H4) and butane (C4H10), write the balanced equation: C6H14 → C2H4 + C4H10. Check that there are 6 carbons and 14 hydrogens on both sides.
Related flashcards
Flashcard 1 of 5
Related practice questions
Question 1 of 5
Choose an answer, get feedback, then move sideways through the set.