What does APC stand for

• A. Aqueous Potassium Carbonate
• B. Aluminum Potassium Carbonate
• C. Ammonium Potassium Carbonate
• D. Aqueous Potassium Chloride

Answer: (A)

APC stands for Aqueous Potassium Carbonate. Here, "Aqueous" means the potassium carbonate is dissolved in water, forming a water-based solution. The letters map directly to the components: Potassium and Carbonate. Potassium carbonate in water is a basic solution and is the standard chemical referred to by APC in this context. The other options mix in different anions or elements (like chloride or aluminum) or replace carbonate with another compound, so they don’t match the official name.