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1.2 g of an organic compound containing ...

1.2 g of an organic compound containing C, H and oxygen on combustion gave 2.64 g `CO_2` and 1.08 g `H_2 O`. The mass of oxygen in 1.2 g of the compound is

A

`0.72`

B

`0.36`

C

`0.12`

D

`0.84`g

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