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The general molecular formula for the ho...

The general molecular formula for the homologous series of alkynes is `C_(n)H_(2n-2)`. Write down the individual molecular formulae of the first, second and third members by substituting the values 2, 3 and 4 respectively for 'n' in this formula.

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The general molecular formula for the homologous series of alkynes is `C_(n)H_(2n-2)`
`n=2 " "C_(2)H_(2xx2-2)=C_(2)H_(2) " "` Ethyne
`n=3" "C_(3)H_(2xx3-2)=C_(3)H_(4)" "` Propyne
`n=4" "C_(4)H_(2xx4-2)=C_(4)H_(6)" "` Butyne
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