Q.
In Carius method of estimation of halogen, $0.25$ g of an organic compound gave $0.15$ g of silver bromide $(AgBr)$. The percentage of Bromine in the organic compound is ...... $\times10^{-1}\%$ (Nearest integer). (Given : Molar mass of Ag is $108$ and Br is $80\ g\ mol^{-1}$)
Numerical Question
This is a numerical-answer question. The correct answer is shown below.
Explanation
[Solution by Dr. Abubacker] Mass of Br $=\frac{80}{188}\times0.15=0.0638$ g. Percentage $=\frac{0.0638}{0.25}\times100=25.5\%=255\times10^{-1}\%$. Answer: 255.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.