The gaseous compound is composed of 85.7...

The gaseous compound is composed of `85.7%` C by `w//W & 14.3%` by mass hydrogen. It's density id `2.28 gm//litre` at 300 K and and 1 atm pressure. Determine molecular formula of the compound.

`C_2H_2`

`C_2H_4`

`C_4H_8`

`C_4H_10`

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