Which is the proper name for the structure shown?
A)2-Chloro-5-aldehydotoluene
B)6-Chloro-3-aldehydotoluene
C)2-Methyl-4-aldehydochlorobenzene
D)4-Chloro-3-methylbenzaldehyde
E)4-Methyl-5-chloro-2-benzaldehyde

Question

Which is the proper name for the structure shown? 
A)2-Chloro-5-aldehydotoluene 
B)6-Chloro-3-aldehydotoluene 
C)2-Methyl-4-aldehydochlorobenzene 
D)4-Chloro-3-methylbenzaldehyde 
E)4-Methyl-5-chloro-2-benzaldehyde

Quizplus · Accepted Answer

The structure shown is a substituted benzaldehyde, and specifically has a methyl group and a chlorine atom in the ortho and para positions, respectively, to the aldehyde group. Therefore, the correct name is 4-chloro-3-methylbenzaldehyde (choice D).

Which Is the Proper Name for the Structure Shown