10.3k views
0 votes
What does the name 2–butene tell you about this hydrocarbon's molecular structure?

A.There are two carbon atoms and all single carbon bonds.

B. There are two carbon atoms and a double carbon bond.

C. There are three carbon atoms and a double carbon bond that starts on the second carbon atom.

D. There are four carbon atoms and a double carbon bond that starts on the second carbon atom.

2 Answers

4 votes

Gradpoint answer: a four-carbon hydrocarbon with a double bond between the second and third carbon atoms

User Kjuly
by
8.2k points
7 votes
Option D. There are four carbon atoms and a double bond that starts on the second carbon atom.

Methane: one carbon
Ethene: two carbons
Propene: three carbons
Butene: four carbons.
Pentene: five carbons

The suffix - ene is used for double bonds.

The number 2- indicates the place of the carbon on which the double bond is located.
User Dave Keane
by
8.8k points
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.