Insoluble Salts: Ionic Precipitation Multiple Choice Questions (MCQ) PDF - 124

MCQ 616: Which one of them is an insoluble salt?

1. Sodium Chloride NaCl
2. Lead Chloride PbCl₂
3. Magnesium Chloride
4. Potassium hydroxide

MCQ 617: Formula K₂SO₄ indicates that

1. 2 ions of Kalium are combined with 4 molecules of oxygen
2. 2 ions of Kalium are combined with 1 sulfate ion
3. 2 ions of potassium are combined with one sulfur and 4 oxygen molecules
4. 1 ion of potassium is combined with 1 sulfate ion

MCQ 618: Examples of conductors include

1. platinum
2. sulphur
3. phosphorus
4. wood

MCQ 619: The formula of carbonic acid indicates that for

1. each ion of Carbon, two ions of hydrogen are required
2. each ion of H, two carbonate ions are required
3. carbonate ion, two ions of hydrogen are required
4. two carbonate ions, three ions of Hydrogen are required

MCQ 620: Valency of Ferrum can be

1. 2 or 4
2. 4 or 6
3. 3 or 5
4. 2 or 3