Question detail
What is the IUPAC name for the compound with the molecular formula C3H8?
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
MCQ
Type
practice
Style
Topic
Introduction to organic chemistry
Question
- A. Propane
- B. Propene
- C. Butane
- D. Ethane
Answer
Propane
Explanation
The molecular formula C3H8 corresponds to propane, which is an alkane with three carbon atoms. According to IUPAC nomenclature, alkanes are named based on the number of carbon atoms, and C3H8 is the simplest alkane with three carbons.
Common mistake
Incorrect Naming of Organic Compounds
Students often confuse the naming of branched alkanes, leading to incorrect IUPAC names.
To correctly name branched alkanes, identify the longest carbon chain as the parent chain, number the chain to give the substituents the lowest possible numbers, and use prefixes for the substituents. For example, for 2-methylpentane, the longest chain is pentane with a methyl group on the second carbon.
Related flashcards
Flashcard 1 of 5
Related practice questions
Question 1 of 5
Choose an answer, get feedback, then move sideways through the set.