Question

A purple color is produced by the treatment of the dry solid with a mild oxidizing agent, is :

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

Answer 1

Answer: (B)

$KI$

A purple color is produced by the treatment of the dry solid KI with a mild oxidizing agent.
The oxidation of KI gives iodine which is a purple solid.
$2KI+\left[O\right]\to K_{2}O+I_2\left(s\right)$