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A gaseous hydrocarbon has 85% carbon and...

A gaseous hydrocarbon has 85% carbon and vapour density of 28. The possible formula of the hydrocarbon will be

A

`C_(3)H_(6)`

B

`C_(2)H_(4)`

C

`C_(2)H_(2)`

D

`C_(4)H_(8)`

Text Solution

Verified by Experts

The correct Answer is:
D
`C: H=(85)/(12):(15)/(1)=,1:2`
`:.` Empirical formula ` =CH_(2)`
Empirical formula weight `=12+2xx1=14`
Mol. Wt. `=2xx V D= 2xx28 =56, n=(56)/(14)=4`
Now, `MF-nxx` empirical formula `4xxCH_(2)=C_(4)H_(8)`
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MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS-BASIC PRINCIPLES AND TECHNIQUES IN ORGANIC CHEMISTRY-EXERCISE 2
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