Question

question 9 (1 point)
name this organic compound:
a) 4 - ethyl - 3 - methylhept - 2 - ene
b) 3 - methyl - 4 - propylhex - 4 - ene
c) 4 - ethyl - 5 - methylhept - 5 - ene
d) 4 - methyl - 3 - propylhex - 4 - ene
e) 3 - methyl4 - propylhex - 2 - ene

Explanation:

Step1: Find the longest carbon chain

The longest carbon chain has 7 carbons (hept -).

Step2: Locate the double bond

The double bond is between carbon 2 and 3. The lower number is used for the double bond, so it is hept - 2 - ene.

Step3: Identify substituents

There is an ethyl group on carbon 4 and a methyl group on carbon 3.

Step4: Name the compound

Substituents are named in alphabetical order. So, 4 - ethyl - 3 - methylhept - 2 - ene.

Answer:

A. 4 - ethyl - 3 - methylhept - 2 - ene