1) What is a base? a) A soluble alkali b) A substance that neutralises an acid c) A soluble metal hydroxide d) A substance that neutralises an alkali e) all of the above f) none of the above 2) What is an acid? a) A substance that releases H+ ions in solution b) A substance that releases OH- ions in solution c) A soluble metal hydroxide d) all of the above e) none of the above 3) What are the products of a neutralisation reaction? a) insoluble salt + water b) insoluble salt + soluble salt c) insoluble salt + acid d) soluble salt + water e) soluble salt + acid f) soluble salt + alkali 4) How is a neutralisation reaction performed? a) acid is mixed with alkali b) acid is added to an alkali until the indicator changes colour c) alkali is added to the acid until the indicator changes colour 5) Why is activated charcoal used? a) To remove the indicator b) To remove the salt c) To remove the excess acid d) To remove the excess alkali e) all of the above f) none of the above 6) Which of the following metals react with hydrogen? a) gold b) platinum c) copper d) lead e) all of the above f) none of the above 7) Metal + acid -> a) soluble salt + water b) insoluble salt + water c) soluble salt + hydrogen d) insoluble salt + hydrogen e) soluble salt + metal oxide f) insoluble salt + metal oxide 8) Metal oxide + acid -> a) soluble salt + water b) insoluble salt + water c) soluble salt + hydrogen d) insoluble salt + hydrogen e) soluble salt + metal f) insoluble salt + metal 9) Why is copper oxide used to make salts rather than pure copper? a) pure copper is too expensive b) pure copper is hard to find c) pure copper isn't reactive enough d) pure copper is too reactive 10) Why is sodium oxide used to make salts rather than pure sodium? a) pure sodium is too expensive b) pure sodium is hard to find c) pure sodium isn't reactive enough d) pure sodium is too reactive 11) What type of salt does hydrochloric acid make? a) nitrates b) sulfates c) chlorides 12) What type of salt does sulfuric acid make? a) nitrates b) sulfates c) chlorides 13) What type of salt does nitric acid make? a) nitrates b) sulfates c) chlorides 14) Which of the following are bases? a) metal hydroxides b) metal oxides c) none of the above d) all of the above 15) Which of the following are alkalis? a) metal hydroxides b) metal oxides c) none of the above d) all of the above 16) How are insoluble salts made? a) titration b) neutralisation c) precipitation d) vacation 17) To make insoluble salt XY, I should use which reactants? a) Y nitrate + sodium X b) X nitrate + sodium Y c) Y chloride + potassium X d) X chloride + potassium Y e) any of the above f) none of the above 18) What is a precipitation reaction? a) A reaction that makes salts b) A reaction involving rain c) A reaction in which a soluble solid is formed d) A reaction in which an insoluble solid is formed e) all of the above f) none of the above 19) What are the reactants needed to make an insoluble salt? a) two soluble salts b) two insoluble salts c) a soluble salt and an insoluble salt d) a soluble salt and an acid e) a soluble salt and an alkali f) a soluble salt and a base 20) Which of these salts is soluble in water? a) sodium nitrate b) barium sulfate c) copper carbonate d) calcium sulfate e) lead chloride f) silver bromide

Making Salts

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