Which of the following can have an isomer?
A
C2H4
B
C4H10
C
C3H8
D
C2H6
E
C6H6
Verified Correct Answer: B.
Chemical Principles & Mechanism
Butane is an alkane with four carbon atoms so molecular formula is C4H10. It has two isomers; n-butane and isobutane.
Source: WAEC / JAMB / NECO Classroom Archive (Record #13967)