What is the molecular formula of propene?

Unlock all questions

This demo includes only 20 questions. Upgrade to access hundreds of questions, flashcards, exam simulations, and disable ads.

Full question bankExam simulationsFlashcards
From $24.99Unlock all

Study for the IGCSE Edexcel Chemistry Test. Access flashcards and multiple choice questions with hints and explanations. Get ready for your exam!

Multiple Choice

What is the molecular formula of propene?

Explanation:
Propene is an alkene, which are hydrocarbons with a carbon–carbon double bond. For alkenes, the general formula is CnH2n. With three carbon atoms (n = 3), you get C3H6. This matches the structure of propene, which has two fewer hydrogens than the saturated alkane with the same number of carbons (propane, C3H8) because of the double bond. The other options don’t fit: C3H8 is propane, a saturated alkane; C4H8 would be a four-carbon alkene (butene); C2H4 is ethene, with only two carbons. So the molecular formula is C3H6.

Propene is an alkene, which are hydrocarbons with a carbon–carbon double bond. For alkenes, the general formula is CnH2n. With three carbon atoms (n = 3), you get C3H6. This matches the structure of propene, which has two fewer hydrogens than the saturated alkane with the same number of carbons (propane, C3H8) because of the double bond. The other options don’t fit: C3H8 is propane, a saturated alkane; C4H8 would be a four-carbon alkene (butene); C2H4 is ethene, with only two carbons. So the molecular formula is C3H6.

More Multiple Choice Questions
Subscribe

Get the latest from Examzify

You can unsubscribe at any time. Read our privacy policy