Q. 705.0( 6 Votes )

Which of the following hydrocarbons is unsaturated? C3H4; C2H6;

Answer :

C2H6 is a saturated hydrocarbon because if the number of hydrogen atoms is 2 more than double the number of carbon atoms, then it will be an alkane or saturated hydrocarbon. The general formula of alkane is CnH2n+2. Here, n is number of carbon atoms.

Thus, C2H6 (ethane) is a saturated hydrocarbon.

If the number of hydrogen atoms is 2 less than double the number of carbon atoms, then it will be an alkyne. The general formula of alkyne is CnH2n-2. Here, n is number of carbon atoms. Alkynes are unsaturated hydrocarbons.

Thus, C3H4 (Propyne) is an unsaturated hydrocarbon.

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