The following experiment was performed: A white solid was added to a test tube containing water. The solid completely dissolved and the solution was colorless. Chlorine was added the the solution turned an dark orange color. Hexane was added, the test tube was corked, and the contents was mixed. It was then noted that the hexane was purple in color. What was likely the identity of the white solid

Potassium iodide

Explanation:

The white solid introduced into the solution is potassium bromide. This is an ionic solid thus it quickly dissolves in water to yield a colorless solution.

When chlorine is added to this solution, the iodine is displaced since chlorine is above iodine in the electrochemical series.

When mixed with hexane, the color of the solution changes to purple.

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