What is the molecular formula for butene?

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Study for the IGCSE Organic Chemistry Test. Engage with flashcards and multiple-choice questions, complete with hints and detailed explanations. Prepare effectively to excel in your exam!

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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