Which of the following is not an aliphatic hydrocarbon?
A. alkanes
B. alkenes
C. alkynes
D. cycloalkanes
E. aromatics
answer :E. aromatics
explanation
: A. alkanes acyclic compund
B. alkenes acyclic compund
C. alkynes acyclic compund
D. cycloalkanes is cyclic compund
these four are aliphaitc hydrocarbons.
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