1. CHEMISTRY DEPARTMENT WAID ACADEMY Standard Grade Topic 9

2. What name is given to the reaction of hydrochloric acid with magnesium oxide? 1.Precipitation. 2.Addition. 3.Acidification. 4.Neutralisation. 20

3. Which chemical can neutralise an acidic solution?20 1.Copper. 2.Copper oxide. 3.Copper sulphate. 4.Copper chloride.

4. A salt is a compound formed when the 30 1.hydrogen ion in an acid is replaced by a metal ion from the neutraliser. 2.hydroxide ion in an alkali is replaced by a metal ion from the neutraliser. 3.hydrogen ion in an alkali is replaced by a metal ion from the neutraliser.Copper chloride. 4.hydroxide ion in an acid is replaced by a metal ion from the neutraliser.

5. What are the products of the reaction between copper carbonate and sulphuric acid?20 1.copper chloride and water. 2.copper sulphate and water 3.copper chloride, carbon dioxide and water 4.copper sulphate, carbon dioxide and water.

6. Which two chemicals will react to make the salt potassium nitrate? 20 1.Potassium sulphate and sodium nitrate. 2.Potassium oxide and hydrochloric acid. 3.Nitric acid and potassium hydroxide. 4.Potassium carbonate and sulphuric acid.

7. What are the products of a reaction between magnesium and hydrochloric acid? 20 1.Magnesium chloride and hydrogen. 2.Magnesium chloride and water. 3.Magnesium chloride, hydrogen and water. 4.Magnesium chloride, carbon dioxide and water.

8. A base is a substance that 25 1.neutralises acids. 2.dissolve in water to form an acidic solution. 3.reacts with carbonates to give off carbon dioxide gas. 4.forms an insoluble solid when two solutions are mixed.

9. Insoluble salts can be formed by 20 1.the titration reaction between and acid solution and an alkaline solution. 2.the addition of excess metal carbonate to an acid solution. 3.a precipitation reaction. 4.the addition of excess MAZIT metal to an acid.

10. Which of the reactions shown will produce a precipitate? 20 1.Silver nitrate solution reacting with sodium chloride solution. 2.Magnesium metal reacting with sulphuric acid solution. 3.Copper(II) oxide reacting with hydrochloric acid solution. 4.Sodium hydroxide solution reacting with nitric acid solution.

11. What volume of 0.2 mol/l sodium hydroxide, NaOH, is required to neutralise 20 ml of 0.1 mol/l sulphuric acid solution, H 2 SO 4 ? 40 1.10ml. 2.20ml 3.30ml 4.40ml