Question detail
What is the definition of an alkene?
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
MCQ
Type
practice
Style
Topic
Alkenes
Question
- A. A saturated hydrocarbon with single bonds
- B. An unsaturated hydrocarbon with at least one double bond
- C. A compound containing only carbon and hydrogen
- D. A hydrocarbon that can undergo substitution reactions
Answer
An unsaturated hydrocarbon with at least one double bond
Explanation
Alkenes are defined as unsaturated hydrocarbons because they contain at least one carbon-carbon double bond (C=C), which distinguishes them from saturated hydrocarbons that only have single bonds.
Common mistake
Misunderstanding Unsaturation
Students often describe alkenes as saturated hydrocarbons instead of unsaturated hydrocarbons.
Remember that alkenes contain at least one double bond (C=C), which makes them unsaturated. The formula for alkenes is CnH2n, indicating they have fewer hydrogen atoms than saturated hydrocarbons.
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