Name this molecule: CH3 CH CH CH3.

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

Multiple Choice

Name this molecule: CH3 CH CH CH3.

Explanation:
This test checks how to name alkenes by counting carbon atoms and locating the C=C bond. The molecule has four carbons in a chain, and the double bond sits between the second and third carbons, giving a name that ends with -ene and a position of 2. Written out, it’s CH3-CH=CH-CH3, which is four carbons with a double bond in the middle, not a two-carbon ethene, a three-carbon propene, or a fully saturated butane. So the correct name is but-2-ene.

This test checks how to name alkenes by counting carbon atoms and locating the C=C bond. The molecule has four carbons in a chain, and the double bond sits between the second and third carbons, giving a name that ends with -ene and a position of 2. Written out, it’s CH3-CH=CH-CH3, which is four carbons with a double bond in the middle, not a two-carbon ethene, a three-carbon propene, or a fully saturated butane. So the correct name is but-2-ene.

Subscribe

Get the latest from Examzify

You can unsubscribe at any time. Read our privacy policy