Question

part d
h₃c—ch₂—c≡c—hc—ch₂—ch₃
|
ch₂—ch₃
spell out the full name of the compound.

Explanation:

Step1: Find the longest carbon chain

The longest carbon chain has 7 carbon atoms.

Step2: Identify the position of the triple bond

The triple bond is between the 3rd and 4th carbon atoms.

Step3: Identify the substituent

There is an ethyl group ($-CH_{2}CH_{3}$) on the 5th carbon atom.

Step4: Name the compound

According to IUPAC naming rules for alkynes, we name it as 5 - ethyl - 3 - heptyne.

Answer:

5 - ethyl - 3 - heptyne