Question

The molecule 2-methyl-5-ethylbenzene is named incorrectly. correct this name.
my answer is 1,3-dimethyl-5-ethylbenzene
is my answer correct?

Answer 1

my other answer is 4-ethyl-1-methylbenzene

Answer 2

Neither is correct. The first one because you don't hve two methyl groups so dimethyl has no place.
The second one because it isn't alphabetical.
Try 1-ethyl-4-methylbenzene
You want the lowest numbers possible and substituents alphabetical.

Answer 3

thanks, DrBob222