Q. Name of some compounds are given below. Which one is not in IUPAC system?
A) $CH_{3} - CH - CH - CH_{3}$
$|$ $|$
$OH$ $CH_{3}$
4-methyl-2-butanol
B) $CH_{3} - C \equiv C - CH\left( CH_{3} \right)_{2}$
4 methyl-2-pentyne
C) [image:9_image133.emf]
D) $CH_{3}$
$|$
$CH_{3} - CH_{2} - CH_{2} - CH - CH - CH_{2}CH_{3}$
$|$
$CH_{2}CH_{3}$
3-methyl-4-ethyl heptane
Explanation
(d)
[image:9_image289.emf]
Note : The prefix in a compound should be arranged in alphabetical order
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.