The precipitate of CaF2 (Ksp = 1.7×10–10 ) is obtained when equal volumes of the following are mixed ?
10-4M Ca2+ + 10-4MF-
10-2 M Ca2+ + 10-3 MF-
10-5M Ca2+ + 10-3MF-
10-3M Ca2+ + 10-5MF-
For precipitation, KIP ⩾Ksp