Question

IUPAC Name
CH-CEC -- CH2-By​

Answer 1

Explanation:

It contains one double bond and one triple bond.

The parent hydrocarbon contains four carbon atoms.

Alkene have more priority than alkyne so double bond should get lowest numbering.

The IUPAC name of CH≡C−CH=CH  

2

​  

 is But-1-en-3-yne.

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