Hydrocarbons - Result Question 23
####25. The IUPAC name of the compound having the formula $CH \equiv C-CH=CH_2$ is :
[2009]
(a) 1-butyn-3-ene
(b) but-1-yne-3-ene
(c) 1-butene-3-yne
(d) 3-butene-1-yne
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Solution:
- (c) So the IUPAC name of the compound is 1butene-3-yne.
If both the double and triple bonds are present in the compound, it is regarded as derivative of alkyne. Further if double and triple bonds are at equidistance from either side, the preference is given to double bond.