In Which of the Following Cases Is Water Acting as a Base

Multiple Choice

In which of the following cases is water acting as a base under the Lewis definitions,but not under the Bronsted-Lowry definitions?

A) H₂O(l) + HF(g) ⇌ H₃O⁺(aq) + F^-(aq)
B) H₂O(l) ⁺ CN^-(aq) ⇌ OH^-(aq) + HCN(aq)
C) 2 H₂O(l) + Cu²⁺(aq) ⇌ Cu(H₂O) ₂²⁺(aq)
D) 2 H₂O(l) + PO₄^3-(aq) ⇌ 2 OH^-(aq) + H₂PO₄^-(aq)
E) 2 H₂O(l) [electrolysis] ⇌ 2 H₂(g) + O₂(g)