
Cracking and Alkenes
Quiz
•
Chemistry
•
7th Grade
•
Practice Problem
•
Medium
Louis Holmes
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is crude oil primarily composed of?
A single type of hydrocarbon
Water and hydrocarbons
A mixture of lots of different hydrocarbons
Minerals and gases
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What process is used to separate different hydrocarbons in crude oil?
Condensation
Filtration
Evaporation
Fractional distillation
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which hydrocarbons are the most flammable?
Medium-length hydrocarbons
Shortest hydrocarbons
All hydrocarbons equally
Longest hydrocarbons
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the process called that breaks down longer hydrocarbons into shorter ones?
Condensation
Filtration
Evaporation
Cracking
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does 'thermal decomposition' mean?
Combining molecules by heating them
Combining molecules by cooling them
Breaking down molecules by heating them
Breaking down molecules by cooling them
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is used as a catalyst in catalytic cracking?
Hot water
Hot powdered aluminium oxide
Cold powdered aluminium oxide
Steam
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What happens to long hydrocarbons during steam cracking?
They split apart into shorter hydrocarbons
They dissolve in steam
They combine into even longer hydrocarbons
They remain unchanged
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