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Question
The IUPAC name of the given compound is ________.
The IUPAC Name Of The Given Compound Is ________.
Options:
A .  but-3-yne
B .  but-1-ene
C .  but-2-yne
D .  but-1-yne
Answer: Option C
:
C
The given compound can be numbered as shown below.
The IUPAC Name Of The Given Compound Is ________.
There are four carbon atoms in the parent chain (the longest carbon chain) and hence, the root word is 'but'.
A triple bond is present between the second and third carbon atoms of the chain. Hence, it is an alkyne and the suffix will be '2-yne'.
Therefore, the IUPAC name of the given compound is but-2-yne.

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