Multiple choice general knowledge What is the chemical name of (NH4)3PO4 ? Ammonium phosphate Ammonia tri-phosphorus TetraOxide ammonium nitrate Ammonium nitrate Reveal answer Fill a bubble to check yourself A Correct answer Explanation (NH4)3PO4 is Ammonium phosphate, formed from three ammonium ions (NH4+) and one phosphate ion (PO4 3-). It's commonly used as fertilizer.