Identify the correct statements from the following. (A) The ionic product of water at 100^ C is < 10⁻¹⁴ . (B) pH of a solution decreases with increasing temperature. (C) NaH ₂ PO ₄ on hydrolysis gives a basic solution. (D) NH ₃ can act both as Bronsted acid and base.

Step-by-step solution

(A) The ionic product of water at 100^ C is 51.3 10⁻¹⁴ . So, this statement is incorrect. (B) On increasing the temperature, pH of solution also decreases. (C) Since, Na ₂ HPO ₄ is a salt of strong base NaOH and weak acid H ₃ PO ₄ , it gives a basic solution on hydrolysis. (D). NH ₃ can act as both Bronsted acid and base because it can accept H ⁺ ion to form NH ₄⁺ and donate H ⁺ ion to form NH ₂⁻ . Hence statements B, C, D are correct.