PCl5 + H2O -> H3PO4 + HCl — Redox Reactions and Volumetric Analysis Chemistry Question

💡 Solution & Explanation

Step 1: Phosphorus pentachloride (PCl5) features phosphorus in its maximum stable +5 oxidation state. Step 2: Complete hydrolysis replaces all five chlorine atoms, forming orthophosphoric acid (H3PO4) and hydrochloric acid (HCl). Step 3: The phosphorus-containing product, phosphoric acid, ends in '-ic', identifying this as category A.