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The mass precent of oxgen in 109% oleum ...

The mass precent of oxgen in `109%` oleum is .

A

`40%`

B

`63.18%`

C

`60%`

D

`24%`

Text Solution

Verified by Experts

The correct Answer is:
B
Let `F^(+2) = x , F^(+3) = (0.93-x)`
`2x+3(0.93-x)=2`
`x=0.79`
`%Fe^(+2) = (0.79)/(0.93)xx100~=85%`
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