Edexcel Jan 2015 (IAL) Paper 6 Q1

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Answer ALL the questions. Write your answers in the spaces provided. 1 A white solid, A, has one metal cation, and an anion containing two non-metallic elements. (a) A flame test is carried out on A. (i) Describe how you would carry out this flame test in the laboratory. (3)(ii) A yellow flame is seen. Give the formula of the metal ion present. (1)(b) Solid A dissolves in water to form a colourless solution. This solution decolorises a dilute aqueous solution of iodine. Dilute hydrochloric acid is added to a fresh solution of A. A very pale yellow precipitate, B, forms slowly and an acidic gas, C, is given off. Gas C turns acidified sodium dichromate(VI) from orange to green. (i) Identify, by name or formula, the precipitate B and the gas C. (2) Precipitate, BGas, C*P45046A0216*<br /> (ii) What is the colour of a dilute aqueous solution of iodine? (1)(iii) Give the name of the anion in compound A. (1)(iv) Give the formula of compound A. (1)(Total for Question 1 = 9 marks) *P45046A0316* Turn over<br />

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