Each of the pictures (a)-(d)represents one of the following substances at 25°C: potassium,fluorine,iodine,potassium fluoride,not necessarily in that order.
-Which picture corresponds to iodine?

Question

Each of the pictures (a)-(d)represents one of the following substances at 25°C: potassium,fluorine,iodine,potassium fluoride,not necessarily in that order. 
-Which picture corresponds to iodine?

Quizplus · Accepted Answer

Iodine is a solid at room temperature, and it has a dark purple-black color. Among the choices given, only picture (c) shows a solid substance with a dark color, which is consistent with the properties of iodine.

Each of the Pictures (A)-(D)represents One of the Following Substances