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Ethane (/ËÉÎ¸eÉªn/ or /ËiËÎ¸eÉªn/) is an organic chemical compound with chemical formula C 2 H 6. At standard temperature and pressure, ethane is a colorless, odorless gas.Ethane is isolated on an industrial scale from natural gas, and as a byproduct of petroleum refining.he name ethane is derived from the IUPAC nomenclature of organic chemistry. Eth- refers to the presence of 2 carbon atoms, and -ane refers to the presence of a single bond between them.
The answer is C, however telling structure from formula is not a good way to do it. C2H4O is also the formula for ethylene oxide, which is not an aldehyde, but an epoxide. C6H10O5 can also be the formula for an aldehyde or not. It can be: 2,3,4-trihydroxy-5-oxohexanal (aldehyde) or. 2,3,4,5-Tetrahydroxycyclohexanone (not an aldehyde)