Ca(OH)2 + 2HF -> CaF2↓ + 2H2O — Redox Reactions and Volumetric Analysis Chemistry Question

💡 Solution & Explanation

Step 1: Calcium hydroxide is a soluble base in water, and hydrofluoric acid is a weak soluble acid. Step 2: Upon reaction, they form insoluble calcium fluoride, CaF2↓, which precipitates out. Step 3: Since a solid precipitate forms from soluble starting materials, this is classified as a precipitate formation reaction (type A), corresponding to option (a).