COỰ TEÕN GOÙI LAỨ

92.

coự teõn goùi laứ:

CH

3

CH

2

CH

3

A) 1 – etyl – 3 – metylxiclohexan

B) 3 – etyl – 1 – metylxiclohexan

C) 1 –metyl – 3 – etylxiclohexan

D) 1 – etyl – 3 – metylhexan