1.

0.395g of an organic compound by Carius method for the estimation of S gave 0.582g of BaSO_(4). The percentage of S in the compound is :

Answer»

`20.24%`
`35.62%`
`12.24%`
`40.65%`

Solution :`underset(233)(BaSO_(4))-=underset(32)(S)`
`233g` of `BaSO_(4)` contain SULPHUR `=32g`
`0.582g` of `BaSO_(4)` contain sulphur
`=(32)/(233)xx0.582`
Percentage of sulphur
`=(32xx0.582)/(233xx0.395)xx100=20.24%`


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