JKSSB Mock Tests

0.25 g of an organic compound, on treatment with fuming nitric acid followed by AgNO3, gave 0.22 g of AgBr . The percentage of bromine in the compound is ...........

A. 88.00%
B. 50.00%
C. 37.45%
D. 34.04%
Answer: Option C
Solution (By JKSSB Mock Tests Team)
This demonstrates the Carius halogen method, developed by Georg Ludwig Carius in 1860 for quantitative chemical analysis. By calculating the mass fraction of bromine in the precipitated 0.22g of silver bromide, the mass percentage of bromine in the original compound calculates perfectly to 37.45%.
This Question Belongs to: General science Chemistry set 1
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