CURICULUM DEVELOPMENT CENTREPRETEST

TOPIC: SALTS Time: 10 minutes

Answer all questions. Write your answers in the spaces provided in the table below.

Pretest Answer Table1. 2. 3. 4. 5.6. 7. 8. 9. 10.

1 Which of the following is an example of salts used in daily life?A Sodium hydroxideB Magnesium oxideC Ethanoic acidD Sodium bicarbonate

2 Salt X is used as fertilisers in agriculture. What is salt X?A Sodium chlorideB Calcium carbonateC Ammonium sulphateD Monosodium glutamate

3 Kamal is suffering from gastric. Which of the following salt can be used to neutralise the excess hydrochloric acid in his stomach?A Sodium hydrogen carbonateB Ammonium nitrateC Potassium chlorideD Barium sulphate

4 Name the acid used to prepare ammonium chloride.A Nitric acidB Sulphuric acidC Phosphoric acidD Hydrochloric acid

5 What is the salt formed when hydrochloric acid reacts with sodium hydroxide?A Sodium sulphate B Sodium chlorideC Sodium nitrateD Sodium phosphate

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6 Which of the following chemical equations represent neutralisation?I H2SO4 (aq) + 2NaOH (aq) → Na2SO4 (aq) + 2H2O (l)II 2HNO3 (aq) + PbO (s) → Pb(NO3)2 (aq) + H2O (l)III HCl (aq) + KOH (aq) → KCl (aq) + H2O (l)IV Mg (s) + 2HCl (aq) → MgCl2 (aq) + H2 (g)

A I and III onlyB II and IV onlyC I, II and III onlyD I, II, III and IV

7 Which of the following reactions can produced potassium sulphate?I Potassium hydroxide solution and nitric acidII Potassium hydroxide solution and sulphuric acidIII Solid potassium oxide and sulphuric acidIV Solid potassium carbonate and nitric acid

A I and II onlyB I and III onlyC II and III onlyD II, III and IV only

8 Which of the following statements about salts are true?I Sodium chloride is the salt used in cooking.II The type of reaction that can produce salts is neutralisation.III Carbonic acid is used to produce nitrate salts.IV Copper (II) sulphate is produced when copper metal is added to sulphuric

acid.

A I and II onlyB I and IV onlyC II and IV onlyD II, III and IV only

9 What type of salts is formed when ethanoic acid is used?A Nitrate saltsB Sulphate saltsC Chloride saltsD Ethanoate salts

10 A salt is defined as a compound formed when A the hydrogen ions in the acid is replaced by the metal or ammonium ions.B the hydroxide ions in the alkali is replaced by the metal or ammonium

ions.C the hydrogen ions in the acid is replaced by the non-metal ions.D the hydroxide ions in the alkali is replaced by the non-metal ions.

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