解这道题---**Question Stem:** 下列化学方程式或离子方程式中，错误的是 **Options:** **A.** **Description:** 向苯酚钠溶液中通入少量CO₂: (Bubbling a small amount of CO₂ into sodium phenoxide solution:) **Chemical Reaction:** * **Diagram Description:** * **Reactant 1:** A benzene ring with a negatively charged oxygen atom directly attached. This represents the phenoxide ion. * **Product 1:** A benzene ring with a hydroxyl group (-OH) directly attached. This represents phenol. * **Equation (Textual representation of reaction with diagrams described):** Phenoxide ion (benzene ring with -O⁻) + CO₂ + H₂O → Phenol (benzene ring with -OH) + HCO₃⁻ **B.** **Description:** 草酸与酸性高锰酸钾溶液反应: (Reaction of oxalic acid with acidic potassium permanganate solution:) **Chemical Equation:** 5H₂C₂O₄ + 2MnO₄⁻ + 6H⁺ = 10CO₂ ↑ + 2Mn²⁺ + 8H₂O **C.** **Description:** 向CuSO₄溶液中加入过量氨水: (Adding excess ammonia water to CuSO₄ solution:) **Ionic Equation:** Cu²⁺ + 4NH₃·H₂O = [Cu(NH₃)₄]²⁺ + 4H₂O **D.** **Description:** 新制的银氨溶液中加入几滴乙醛、并水浴加热: (Adding a few drops of acetaldehyde to freshly prepared silver ammonia solution, and heating in a water bath:) **Chemical Equation:** CH₃CHO + 2[Ag(NH₃)₂]OH (加热)→ 2Ag ↓ + CH₃COO⁻ + NH₄⁺ + 3NH₃ + H₂O