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Correct Answer – A
0.1 mol of cabohydrate with empirical formula `CH_(2)O` contains 1 g of hydrogen.
`:.` 1 mol of carbohydrate with empirical formula
In `CH_(2)O` atomic ratio of `C:H:O=1:2:1`
with 10 g atoms of H, g atoms of carbon = 5 and g atoms of oxygen =5
`:.` The molecular formula of the carbohydrate is `C_(5)H_(10)O_(5)`.
Correct Answer – A
`0.1` mol of carbohydrate contains `1 g H`, thus, `1` mol of carbohydrate will contain `10 g H`. In other words, `1` molecule contains `10 “amu” H`. The only formula that confirms is `C_(5)H_(10)O_(5)`.