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The ozonolysis product of an alkyne is 2...

The ozonolysis product of an alkyne is 2-oxopentanal. Then the alkyne is___________

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2-oxopentanal is `CH_(3)-CH_(2)-CH_(2)-underset(O)underset(||)C-underset(O)underset(||)CH`
Hence the triple bond should be present between `C_(1)` and `C_(2)`, so that the alkyne is 1-pentyne.
`CH_(3)-CH_(2)-CH_(2)-C-=CH`
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