Which of the Following Pairs Is Mismatched?
A)NaOH ⇌ Na⁺ $\mathrm { SO } _ { 4 } ^ { 2 - }$

Which of the following pairs is mismatched?

A) NaOH ⇌ Na⁺ + OH⁻ is a base
B) HF ⇌ H⁺ + F⁻ is an acid
C) MgSO₄ ⇌ Mg²⁺ + $\mathrm { SO } _ { 4 } ^ { 2 - }$ is a salt
D) KH₂PO₄ ⇌ K⁺ + H₂ $\mathrm { PO } _ { 4 }$ is an acid
E) H₂SO₄ ⇌ 2H⁺ + $\mathrm { SO } _ { 4 } ^ { 2 - }$ is an acid