Acids Click to start
Question 1 Which one of the following acids is found in the stomach to aid digestion? Ethanoic acidSulfuric acid Nitric acidHydrochloric acid
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Water Question 2 Which one of the following products is produced when calcium reacts with hydrochloric acid? Calcium NitrateCalcium Chloride Calcium Chlorate
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Question 3 What is the name of the reaction that occurs when an indigestion tablet reacts with excess stomach acid? CombustionPrecipitation NeutralisationNitration
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Question 4 The chemical test for hydrogen gas is… It makes a squeaky pop with a lit splint It relights a glowing splint It turns red litmus paper blue It turns limewater cloudy
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Question 5 Which one of the following statements about chlorine gas is untrue? It is toxicIt is used in the manufacture of bleach It is a green liquid at room temperature It can be obtained from seawater by electrolysis
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Question 6 The chemical test for oxygen gas is.. It turns limewater cloudy It makes a squeaky pop with a lit splint It relights a glowing splint It turns red litmus paper blue
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Question 7 Water can be decomposed to form hydrogen and oxygen using a process called… FiltrationElectrolysis Thermal decomposition Polymerisation
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Question 8 The correct chemical formula used to represent hydrogen gas is… H2H2 H HI Hi 2
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Question 9 The chemical test for chlorine gas is It relights a glowing splint It makes a squeaky pop It bleaches damp litmus paper It stains litmus paper green
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Question 10 If electricity were passed through a solution of hydrochloric acid, what would be the products? Hydrogen gas only Hydrogen and chlorine gas No productsChlorine gas only
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