Question

$0.394$ g of an organic compound containing iodine on treatment by Carius method gave 0.705 g of silver iodide. Find the percentage of halogen in the compound.

• A. $99$%
• B. $96.7$%
• C. $95$%
• D. $92$%

Answer 1

Answer: (B)

$96.7$%

According to Carius method,

$\%$ of Halogen(Here, Iodine) $=\frac{127}{108+127}\times \frac{MassofAgI}{Massoforganiccompound}\times 100$

$⟹\%$ of Halogen $=0.54\times \frac{0.705}{0.394}\times 100$

$⟹\%$ of Halogen $=96.7\%$