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- 1. Multiple-choice1 minute1 ptWhich of the following is NOT a property of an acid?Tastes sourCorrosiveChanges the colour of blue litmus paper to redHas a pH value higher than 7
- 2. Multiple-choice1 minute1 ptWhat gas is released when an acid reacts with an reactive metal?OxygenHydrogenHeliumBromine
- 3. Multiple-choice1 minute1 ptWhich of the following is NOT a property of an alkali?Tastes bitterCorrosiveChanges the colour of blue litmus paper to redHas a pH value higher than 7
- 4. Multiple-choice1 minute1 ptWhich of the following is a strong alkali?Sodium hydroxidePotassium nitrateSodium nitratePotassium sulphate
- 5. Multiple-choice1 minute1 ptWhich of the following is NOT a strong acid?Ethanoic acidNitric acidHydrochloric acidSulphuric acid
- 6. Multiple-choice1 minute1 ptWhat gas is released when an ammonium salt is heated together with an alkali?SulphurAmmoniaCarbon dioxideOxygen
- 7. Multiple-choice1 minute1 ptWhat is the pH value of vinegar?17411
- 8. Multiple-choice1 minute1 ptWhat is the pH value of toothpaste?17148
- 9. Multiple-choice1 minute1 ptWhat is the pH value of pure water?71448
- 10. Multiple-choice1 minute1 ptWhat type of acid can be found in a car battery?Ethanoic acidNitric acidHydrochloric acidSulphuric acid
- 11. Multiple-choice1 minute1 ptWhat type of acid can be found in carbonated drinks?Carbonic acidTartaric acidCitric acidSulphuric acid
- 12. Multiple-choice1 minute1 ptWhat method is used to study the neutralisation reaction between an acid and an alkali?EvaporationTitrationSublimationElectrolisis
- 13. Multiple-choice1 minute1 ptWhat is the process that takes place when an acid reacts with an alkali?TitrationEvaporationNeutralisationSublimation
- 14. Multiple-choice1 minute1 ptIn a neutralisation reaction, what is the function of the indicator?To indicate that the mixture is neutralTo indicate that hot water should be addedTo indicate that the flask should be shakenTo indicate that a precipitate is formed
- 15. Multiple-choice1 minute1 ptWhat is the product of a neutralisation reaction?Acid and alkaliSalt and waterHydrogen and oxygenBromine and chlorine
- 16. Multiple-choice1 minute1 ptIn a neutralisation reaction, dilute hydrochloric acid is slowly added to a sodium hydroxide solution. What is the colour change at the end point if the indicator used is phenolphthalein?From colourless to pinkFrom blue to greenFrom pink to colourlessFrom green to blue
- 17. Multiple-choice1 minute1 ptIn a neutralisation reaction, dilute nitric acid is slowly added to a potassium hydroxide solution. What is the colour change at the end point if the indicator used is the universal indicator?From colourless to pinkFrom green to blueFrom pink to colourlessFrom blue to green
- 18. Multiple-choice1 minute1 ptWhat is the salt formed when hydrochloric acid is added to sodium hydroxide?Potassium nitrateSodium nitrateSodium chloridePotassium chloride
- 19. Multiple-choice1 minute1 ptWhat is the salt formed when nitric acid is added to potassium hydroxide?Sodium chloridePotassium nitrateSodium nitratePotassium chloride
- 20. Multiple-choice1 minute1 ptWhich chemical can be used to neutralise a wasp sting?Slaked limeAlumShampooVinegar
- 21. Fill-in-the-Blank30 seconds1 pt
_____________ is the process that takes places when acid reacts with an alkali to form salt and water.
- 22. Multiple-choice30 seconds1 pt
Complete the word equation for neuralisation reaction.
Acid + Alkali --> _______ + _________
sugar.....water
salt......water
salt......vinegar
vinegar.....salt
- 23. Multiple-choice30 seconds1 pt
Hydrochloric acid + Potassium hydroxide --> _______ + Water
Calcium Sulphate
Sodium Chloride
Potassium Chloride
Sodium Hydroxide
- 24. Multiple-choice30 seconds1 pt
Hasan wants to prepare sodium sulphate in the lab, which chemicals can be used?
Dilute Nitric acid and Sodium nitrate
Dilute Sulphuric acid and sodium hydroxide solution
Dilute sulphuric acid and sodium carbonate
Acid hydrochloric and Sodium hydroxide
- 25. Multiple-choice30 seconds1 pt
Toothpaste contains ___________ which neutralises ________ in the mouth due to the action of bacteria to prevent tooth decay.
acid.......alkali
acid....acid
alkali....acid
alkali....alkali
- 26. Multiple-choice30 seconds1 pt
Hair conditioner contains ______ which neutralises the _____ shampoo so that the hair become smooth, shiny and health.
acid....... alkaline
alkali......acidic
acid...... neutral
alkali.....neutral
- 27. Multiple-choice30 seconds1 pt
Which of the following is a neutralisation reaction?
Potassium hydroxide + kalsium nitrate --> Calcium hydroxide + Potassium nitrate
Hydrochloric acid + Sodium hydroxide --> Sodium chloride + water
Hydrochloric acid + Ammonia solution --> Ammonium chloride + water
Sodium hydroxide + calcium chloride --> sodium chloride + calcium hydroxide
- 28. Multiple-choice30 seconds1 pt
Fabric softener has __________ properties which reduces the pH value of fabric which become ________ due to the use of detergent powder.
alkaline.....acidic
acidic.....alkaline
acidic....acidic
alkaline....alkaline
- 29. Multiple-choice30 seconds1 pt
What is the colour change of phenolphthalein during titration?
colourless (in alkali) to pink (in neutral)
pink (in alkali) to colourless (in neutral)
blue (in alkali) to green(in neutral)
green (in alkali) to yellow (in neutral)
- 30. Multiple-choice30 seconds1 pt
Name the method used to carry out neutralisation reaction
Titration
Condensation
Transpiration
Distillation
