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0.1 mol of a carbonhydrate with empirica...

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

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)`

Text Solution

Verified by Experts

The correct Answer is:
A
0.1 mole of carbohydrate contains 1 gm of hydrogen. So, 1 mole of carbohydrate contains 10 gm of hydrogen. The general formulae of carbohydrate ` = C_(n)H_(2n)O_(n)`. It is evident that 2n = 10
`therefore n = 5` , so molecular formula will be `C_(5)H_(10)O_(5)`.
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