Modern petrol engines can use petrol containing up to ten per cent ethanol without needing any modifications, and most petrol sold in the UK contains ethanol. Although biofuels are in theory ...

Consider ethanol and ether. Both molecules have the same molecular formula (C 2 H 6 O) yet there is a large difference in boiling points. Ethanol (CH 3 CH 2 OH) is a liquid at room temperature ...