Question

Treatment of the dry solid with a mild oxidizing agent produces a purple solid having formula _______.

• A. $N_2$
• B. $KI$
• C. $CC{l}_4$
• D. $AgN{O}_3$

Answer 1

The correct option is B $KI$

Iodine can be displaced from potassium iodide if a more reactive element is made to react with potassium iodide. In the presence of a mild oxidising agent, the iodine ions are oxidised to $I_2$. Iodine is purple in colour.