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In an estimation of sulphur by Carius me...

In an estimation of sulphur by Carius method, `0.160g` of the substance gave `0.466g` of barium sulphate. The percentage of sulphur in the compound is [At mass of `Ba=137`, `S=32`, `O=16`] :

A

`25.0%`

B

`4.0%`

C

`54.0%`

D

`40.0%`

Text Solution

Verified by Experts

The correct Answer is:
D
`underset(233)(BaSO_(4))-=underset(32)(S)`
`233g` of `BaSO_(4)` contain sulphur `=32g`
`0.466g` of `BaSO_(4)` contain sulphur
`=(32)/(233)xx0.466=0.064`
`%` Sulphur `=(0.064)/(0.160)xx100=40%`
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