1) Name the hazard symbol associated with acids and alkalis? a) Toxic b) Corrosive c) Radioactive d) Harmful to the environment 2) What scale is used to show the strength of an acid or an alkali? a) Richter scale b) Geiger c) pH scale d) Barometer 3) Name the indicator used with the pH scale a) Litmus b) Methyl orange c) Universal Indicator d) Phenolphthalein 4) What is the pH of a strong acid? a) pH7 b) pH14 c) pH6 d) pH1 5) What is the pH of a weak alkali? a) pH7 b) pH14 c) pH6 d) pH8 6) What is the pH of a neutral substance? a) pH7 b) pH14 c) pH6 d) pH8 7) When an acid is added to an alkali, what are the products? a) Salt + Hydrogen b) Salt + Water c) Salt + Carbon Dioxide d) Salt + Metal 8) What substance is used to neutralise a wasp sting?  a) vinegar b) baking soda c) lime d) water 9) which substance is used to neutralise acidic farm land? a) slurry b) manure c) water d) lime 10) which substance is used to neutralise a bee sting? a) vinegar b) baking soda c) lime d) water 11) When hydrochloric acid is used, what is the name of the salt? a) sulfate b) oxide c) nitrate d) chloride 12) when sulfuric acid is used, what is the name of the salt? a) sulfate b) oxide c) nitrate d) chloride 13) when nitric acid is used, what is the name of the salt? a) sulfate b) oxide c) nitrate d) chloride 14) sodium hydroxide + hydrochloric acid ———> a) sodium chloride + water b) sodium nitrate + water c) sodium oxide + hydrogen d) sodium sulfate + water 15) sodium hydroxide + sulfuric acid ——-> a) sodium sulfate + water b) sodium chloride + water c) sodium nitrate + water d) sodium oxide + water

NEUTRALISATION

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