What is the molecular formula for butene?

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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

What is the molecular formula for butene?

Explanation:
Butene is an alkene, so it has one C=C double bond. For alkenes, the general formula is CnH2n, where n is the number of carbon atoms. Butene has four carbons, so its formula is C4H8. The other options reflect different numbers of carbons: C3H6 would be propene, C5H10 would be pentene, and C6H12 would be hexene. There can be isomers of butene (like 1-butene and 2-butene), but they all share the same molecular formula: C4H8.

Butene is an alkene, so it has one C=C double bond. For alkenes, the general formula is CnH2n, where n is the number of carbon atoms. Butene has four carbons, so its formula is C4H8. The other options reflect different numbers of carbons: C3H6 would be propene, C5H10 would be pentene, and C6H12 would be hexene. There can be isomers of butene (like 1-butene and 2-butene), but they all share the same molecular formula: C4H8.

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