Question

Treatment of this dry solid with a mild oxidizing agent produces a purple solid. Which of the following it is:

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

Answer 1

The correct option is B $KI$

There are only two purple solids found in chemistry lab i.e. iodine and $KMn{O}_4$. $KI$, is likely the purple solid formed here is iodine. In fact, the iodide ion is easily oxidized to form $I_2$.