JEE Mains · Chemistry · STD 11 - 8.3. Organic chemistry purification and characterization
In the estimation of bromine, \(0.5\, g\) of an organic compound gave \(0.40\, g\) of silver bromide. The percentage of bromine in the given compound is \(.....\,\%\) (nearest integer) (Relative atomic masses of \(Ag\) and \(Br\) are \(108\, u\) and \(80\, u\), respectively).
- A \(340\)
- B \(90\)
- C \(188\)
- D \(34\)
Answer & Solution
Correct Answer
(D) \(34\)
Step-by-step Solution
Detailed explanation
\(O . C \longrightarrow AgBr\) \(0.5\, g \quad 0.4\, g\) \(mol\) of \(Br = mol\) of \(AgBr =\frac{0.4}{188}\) \(\%\, Br =\%\, Br =\frac{\frac{0.4}{188} \times 80}{0.5} \times 100\) \(=34.04\, \%\)
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