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0.4g of an organic compound gave 0.188g ...

`0.4g` of an organic compound gave `0.188g` of silver bromide by a halogen estimation method. The percentage of bromine in the compound is : (at.mass of `Ag=108`, `Br=80`) :

A

`39.8%`

B

`46.0%`

C

`20.0%`

D

`40.0%`

Text Solution

Verified by Experts

The correct Answer is:
C
`AgBr-=Br`
`188-=80`
`188g` of `AgBr` contain bromine `=80`
`0.188g` of `AgBr` contain bromine
`=(80)/(188)xx0.188=0.08g`
`%` of Bromine `=(0.08)/(0.40)xx100=20%`
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