Respuesta :
CH3CH2CH2CH3 i.e., butane having more boiling point among the all given .
Compounds composed of molecules joined by chemical bonds arranged so that their charge distributions are symmetrical are called non-polar compound
Compounds composed of molecules joined by asymmetric polar bonds.
Polar compounds exhibit polarity. This is a property characterized by two opposite charges or poles. As such, it can be converted into a water-soluble ion, which is a polar molecule.
Reason :
while increasing the number of carbons in the chain, the boiling point also increases. The alkanes having intractions with the neighbour alkanes will be Van der Waals dispersion forces, these intractions are very less in the small molecule such as methane. The the force of attraction between the molecules increases as the molecule gets longer and has more electrons.
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