What is the name for this three-carbon alkyl group? -CH-
A)propyl
B)isopropyl
C)butyl
D)methyl
E)ethyl

Question

What is the name for this three-carbon alkyl group?  -CH- 
A)propyl 
B)isopropyl 
C)butyl 
D)methyl 
E)ethyl

Quizplus · Accepted Answer

This three-carbon alkyl group contains a branch on the second carbon, which is indicative of an isopropyl group. Propyl (A) has three carbons but no branches, butyl (C) has four carbons and would not fit this structure, methyl (D) has only one carbon, and ethyl (E) has two carbons and would also not fit this structure.

What Is the Name for This Three-Carbon Alkyl Group