EasyChemistryHigh School (9–10)GeneralCarbon and Its Compounds › Hydrocarbons and NomenclatureConceptual
Which of these are alkanes? C₃H₈, C₄H₈, C₅H₁₂, C₆H₁₂, C₂H₂, C₉H₂₀, C₁₀H₂₀.
Contributed by StemPy LabTry it on paper first. A hint, the key idea and the worked solution are here when you need them.
Which of these are alkanes? , , , , , , .
Need a reminder? The key ideaShow
Alkanes are saturated, , names ending in -ane. Each member of a homologous series has one more , , than the one before. Boiling points rise along the series. Isomers have the same formula and different structures.
The worked solution
Have you tried it?
Work it out on paper first. It is fine to get stuck or make a mistake: that is how we learn. When you are ready, go through the solution one step at a time, and check each step against your own.
Step 1. : . Alkane.
Step 2. : . Alkane. : . Alkane.
Step 3. , and are two short, and is four short. None of them is an alkane.
Answer: , and .
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