0.1 mole of a carbohydrate with empirica...

0.1 mole of a carbohydrate with empirical formula `CH_2O` contain 1 g of hydrogen. What is its molecular formula ?

`C_5H_10O_5`

`C_6H_12O_6`

`C_4H_6O_4`

`C_2H_4O_2`

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