Which statement describes ammonium phosphate's reaction?

Which statement describes ammonium phosphate's reaction?

• A. Not alkaline in its reaction
• B. Neutral in reaction
• C. Very alkaline in its reaction
• D. Highly acidic

Answer: (A)

Ammonium phosphate acts as an ammonium salt, and the ammonium ion behaves as a weak acid in water, releasing some hydrogen ions and lowering the pH. The phosphate part doesn’t push the solution toward alkalinity; it doesn’t create a strongly basic reaction. So the overall effect is not alkaline, and is typically acidic or only slightly acidic rather than neutral or basic. That’s why describing its reaction as not alkaline is the best answer.

Ammonium phosphate acts as an ammonium salt, and the ammonium ion behaves as a weak acid in water, releasing some hydrogen ions and lowering the pH. The phosphate part doesn’t push the solution toward alkalinity; it doesn’t create a strongly basic reaction. So the overall effect is not alkaline, and is typically acidic or only slightly acidic rather than neutral or basic. That’s why describing its reaction as not alkaline is the best answer.