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The carbon, hydrogen and oxygen in an or...

The carbon, hydrogen and oxygen in an organic compound have been found to be in the ratio of `3: 4 : 4`. If the vapour density of the compound is `104`, its molecular formula is :

A

`C_(43)H_(4)O_(4)`

B

`C_(3)H_(4)O_(2)`

C

`C_(9)H_(12)O_(12)`

D

`C_(6)H_(8)O_(8)`

Text Solution

Verified by Experts

The correct Answer is:
D
The empirical formula , `C_(3)H_(4)O_(4)`
Empirical formula mass `=3xx12+4xx1+4xx16=104`
Molecular mass `=2xxV.D`
`=2xx104=208`
`n=(208)/(105)=2`
Molecular formula `=(C_(3)H_(4)O_(4))_(2)`
`=C_(6)H_(8)O_(8)`
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