How many carbon atoms are in propene?

Prepare for the IGCSE Organic Chemistry Exam. Study with flashcards and multiple choice questions, each question has hints and explanations to ensure you understand the core concepts. Get ready for your test with confidence!

Multiple Choice

How many carbon atoms are in propene?

Explanation:
In propene, the number of carbon atoms comes from the length of the carbon chain. The name propene and its structural formula CH2=CH-CH3 both show three carbon atoms: a left CH2 group, a middle CH, and a right CH3 group. So there are three carbon atoms in propene. If there were two carbons it would be ethene, if four it would be butene, and if five it would be pentene.

In propene, the number of carbon atoms comes from the length of the carbon chain. The name propene and its structural formula CH2=CH-CH3 both show three carbon atoms: a left CH2 group, a middle CH, and a right CH3 group. So there are three carbon atoms in propene. If there were two carbons it would be ethene, if four it would be butene, and if five it would be pentene.

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