AQA AS Specimen Paper 1 Q5

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10 This question is about the chemical properties of chlorine, sodium chloride and sodium bromide. . 1 0 5 Sodium bromide reacts with concentrated sulfuric acid in a different way from sodium chloride. Write an equation for this reaction of sodium bromide and explain why bromide ions react differently from chloride ions. [3 marks] . 2 0 5 Equation Explanation A colourless solution contains a mixture of sodium chloride and sodium bromide. Using aqueous silver nitrate and any other reagents of your choice, develop a procedure to prepare a pure sample of silver bromide from this mixture. Explain each step in the procedure and illustrate your explanations with equations, where appropriate. [6 marks] Barcode Typesetter code<br />
 . 3 0 5 11 Write an ionic equation for the reaction between chlorine and cold dilute sodium hydroxide solution. Give the oxidation state of chlorine in each of the chlorine-containing ions formed. [2 marks] Turn over for the next question Barcode Typesetter code Turn over <br />

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