What is the IUPAC name for the following compound?
A)2-fluorobutanonitrile
B)2-fluoropentanonitrile
C)3-fluoropentanonitrile
D)2-fluorobutylcyanide

Question

What is the IUPAC name for the following compound? 
A)2-fluorobutanonitrile 
B)2-fluoropentanonitrile 
C)3-fluoropentanonitrile 
D)2-fluorobutylcyanide

Quizplus · Accepted Answer

The longest carbon chain contains five carbons, and the fluorine is attached to the third carbon. Therefore, the correct name is 3-fluoropentanonitrile. Choice A is incorrect because the carbon chain has five carbons, not four. Choice B is incorrect because the fluorine is not attached to the second carbon. Choice D is incorrect because the name suggests a four-carbon chain, not a five-carbon chain.

What Is the IUPAC Name for the Following Compound