Respuesta :
Answer:
The correct answer is 7.
Explanation:
Given : 3-ethyl-2-pentene (Alkene)
The longest chain in the molecule is of 5 carbon atom. And on second carbon ethyl group is present.In ethyl group there re 2 carbon atoms. So, the total carbon atom in 3-ethyl-2-pentene are 7 carbon atoms.
[tex]CH_2=C(C_2H_5)-CH_2-CH_2-CH_3[/tex]
