A. sodium chloride and potassium hydroxide
B. sodium hydroxide
C. potassium hydroxide
D. soluble carbonates and hydrogen carbonates
Correct Answer:
Option B – sodium hydroxide
Explanation
Lye is the most commonly used alkali for soap-making. The chemical name for lye is sodium hydroxide. (A lye is a metal hydroxide traditionally obtained by leaching ashes (containing largely potassium carbonate or “potash”), or a strong alkali which is highly soluble in water producing caustic basic solutions)
