Edexcel Jun 2010 Paper 3 Q1

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PMT Answer ALL the questions. Write your answers in the spaces provided. 1 Compound A is a white solid that contains one Group 1 cation and one anion. (a) (i) Describe how you would carry out a flame test on compound A. (3)(ii) In a flame test, compound A gives a red flame. Deduce the formula of the cation present. (1)(b) On prolonged strong heating, compound A forms a white solid, B, and a gas. The gas turns limewater milky. (i) Identify, by name or formula, the compound that is dissolved in water to make limewater. (1)(ii) Suggest the formula for the anion in compound A. Justify your answer. (2)*N35693A0216*<br /> PMT (c) When water is added to the white solid, B, it dissolves completely and exothermically to form solution C. (i) Identify, by name or formula, the anion present in B. (1)(ii) Identify, by name or formula, the anion present in C. (1)(iii) Suggest a test for the anion present in C. Give the result of your test. (2) TestResult(d) Suggest the formula of compound A. (1)(Total for Question 1 = 12 marks) *N35693A0316* Turn over<br />

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