Methane, Ethane, Propane and Butane.
They burn to produce water and carbon dioxide (they are only hydrocarbon chains so can't produce much else!)
They contain C-C and C-H bonds which are fairly unreactive, especially with aqeuos reagants.
Methanol, Ethanol, Propanol and Butanol.
They have the functional group 'OH'
Methanol is used as an industrial solvent, and also as a feedstock in the manufacture of organic chemicals.
Ethanol is used in perfurmes, aftershaves, and is mixed with petrol to be used as a fuel.
Their reaction with sodium is gentle, whereas water plus sodium is vigorous and sodium plus an alkane do not react.