Multiple choice general knowledge science & technology Sodium chloride ? KI KCL NaOH NaCL Reveal answer Fill a bubble to check yourself D Correct answer Explanation Sodium chloride (table salt) has the chemical formula NaCl, formed from sodium (Na) and chlorine (Cl). KI is potassium iodide, KCl is potassium chloride, and NaOH is sodium hydroxide - none of these are sodium chloride.