1)

The IUPAC name(s)  of the following compound

112202039_iupac.JPG


A) 4-methylchlorobenzene

B) 4-chlorotoluene

C) 1-chloro-4-methylbenzene

D) 1-methyl-4-chlorobenzene

Answer:

Option B,C

Explanation:

Since, there is no principal functional groups, the numbering of disubstituted benzene is done in alphabetical order as 

1122020726_order.JPG

Hence IUPAC name of this compound is 1-chloro-4-methyl benzene.

  Also, toluene is an acceptable name in IUPAC. hence this compound can also be named as 4-chloro toluene.