Question 40
HydrocarbonsWhich of these is an unsaturated hydrocarbon?
- A.butanol
- B.pentane
- C.benzene
- D.propene
Show the answer and explanation
Answer: D (propene)
Explanation
Propene, CH3CH=CH2, has a C=C double bond and undergoes addition, so it is unsaturated; butanol is not a hydrocarbon and pentane is saturated.