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If 0.2 gram of an organic compound conta...

If 0.2 gram of an organic compound containing carbon, bydrogen and oxygen on combustion, yielded 0.147 gram carbon dioxide and 0.12 gram water. What will be the content of oxygen in the substance ?

A

`65.29%`

B

`73.4%`

C

`83.23%`

D

`89.50%`

Text Solution

Verified by Experts

The correct Answer is:
B
`% C=("wt. of "CO_(2))/("wt. of org. compound").(12)/(44).100`
`= (0.147)/(0.2)xx(12)/(44)xx100=20%`
`% H=("wt. of "H_(2)O)/("wt. of org. comp").(2)/(19).100`
`=6.66%, % O={100-(20+6.66)}~~ 73.4%`
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