Question detail
Which of the following compounds is NOT an alkane?
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
MCQ
Type
practice
Style
Topic
Carbon compounds as fuels and feedstock
Question
- A. C_4H_{10}
- B. C_3H_8
- C. C_2H_6
- D. C_3H_6
Answer
C_3H_6
Explanation
C_3H_6 has only 6 hydrogen atoms for 3 carbons, indicating a double bond; it is an alkene, not an alkane.
Common mistake
General Formula Confusion
Students often confuse the general formula for alkanes with that of alkenes, stating it as CnH2n instead of CnH2n+2.
Remember that alkanes are saturated hydrocarbons with the general formula CnH2n+2, while alkenes are unsaturated with the formula CnH2n.
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