30 questions
_____________ is the process that takes places when acid reacts with an alkali to form salt and water.
Complete the word equation for neuralisation reaction.
Acid + Alkali --> _______ + _________
sugar.....water
salt......water
salt......vinegar
vinegar.....salt
Hydrochloric acid + Potassium hydroxide --> _______ + Water
Calcium Sulphate
Sodium Chloride
Potassium Chloride
Sodium Hydroxide
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
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
Hair conditioner contains ______ which neutralises the _____ shampoo so that the hair become smooth, shiny and health.
acid....... alkaline
alkali......acidic
acid...... neutral
alkali.....neutral
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
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
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)
Name the method used to carry out neutralisation reaction
Titration
Condensation
Transpiration
Distillation