Which of the following compounds has only primary and secondary carbon atoms?
A)Pentane
B)2-Methylpentane
C)2,2-Dimethylpentane
D)2,3,3-Trimethylpentane

Question

Quizplus · Accepted Answer

Pentane has only primary and secondary carbon atoms because it is a straight chain alkane with no branching, and all its carbon atoms are either bonded to two other carbon atoms (secondary) or to one other carbon atom and two hydrogen atoms (primary). The other compounds listed have tertiary carbon atoms due to branching.

Which of the Following Compounds Has Only Primary and Secondary