alleryIf carbon atoms form a closed chain or ring, they are termed:
ACycloalkanes
BCyclopentenes
CCyclobutynes
DCyclohexynes
Answer & Solution
Correct answer: A. Cycloalkanes
1. Closing the chain into a ring changes the family name.
2. The prefix marks the ring.
3. If carbon atoms form a closed chain or a ring, they are termed cycloalkanes.
4. So the answer is cycloalkanes.
_Source: syllabus Chemistry Part II, Unit 9 'Hydrocarbons'_
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