how to prepare alkanes?

Well, here are some of the preparations of alkanes From unsaturated hydrocarbons CH2=CH2 +H2—–> CH3-CH3 This reaction happens in the presence of nickle / paladium catalyst.  From alkyl halide 2CH3Cl+2Na —> CH3-CH3 + 2NaCl This reaction is done in the presence of dry ether.

Read more "how to prepare alkanes?"