1 markFunctional Group Analysis, Reactions and Mechanisms

CAPE Chemistry Unit 2 · 2006 · Paper 2 · Question 2(b)(iii)

State the observation made for each reaction involving metal halides.

State the observation when warm concentrated sulphuric acid is added to solid potassium iodide.

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Other parts of this question

2(a)(i)Write a balanced equation for the reaction occurring when chlorine is bubbled through cold aqueous dilute sodium hydroxide.[2 marks]
2(a)(ii)Calculate the oxidation number of chlorine in NH₄ClO₄.[1 mark]
2(b)(i)State the observation when aqueous chlorine is added to aqueous potassium bromide and the mixture is shaken.[1 mark]
2(b)(ii)State the observation when aqueous silver nitrate is added to a sample of aqueous sodium chloride followed by ammonia solution.[2 marks]
2(c)Write an ionic equation for the reaction occurring in (b)(i).[2 marks]
2(d)What precaution must be taken when performing the reaction in (b)(iii) in the laboratory?[1 mark]

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