Question 3
Question 3 of 8

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Periodic Table
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Describe how to compare hydrogen ion concentration, neutrality, relative acidity and relative alkalinity in terms of colour and pH using universal indicator paper

Describe tests to identify the anions: (a) carbonate, ( CO_3^{2-} ), by reaction with dilute acid and then testing for carbon dioxide gas (b) chloride, ( Cl^- ), bromide, ( Br^- ), and iodide, ( I^- ), by acidifying with dilute nitric acid then adding aqueous silver nitrate (c) nitrate, ( NO_3^- ), reduction with aluminium foil and aqueous sodium hydroxide and then testing for ammonia gas (d) sulfate, ( SO_4^{2-} ), by acidifying with dilute nitric acid and then adding aqueous barium nitrate (e) sulfite, ( SO_3^{2-} ), by reaction with acidified aqueous potassium manganate(VII)