Multiple choice Which of the following compounds is used in radiation detection? Sodium iodate Sodium iodide Sodium laureth sulphate Sodium lauroamphoacetate Reveal answer Fill a bubble to check yourself B Correct answer Explanation Sodium iodide is a white, crystalline salt with chemical formula (NaI) used in radiation detection, treatment of iodine deficiency, and as a reactant in the Finkelstein reaction.