`0.1 mol` of a carbonhydrate with empirical formula `CH_(2)O` contains `1 g` of hydrogen. What is its molecular formula?

Options

A. `C_(5)H_(10)O_(5)`
B. `C_(6)H_(12)O_(6)`
C. `C_(4)H_(8)O_(4)`
D. `C_(3)H_(6)O_(3)`

Answer

A

Explanation

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)`.