8 (B410U10-1) Examiner only 11. X and Y are metals that are in the same group of the Periodic Table. Aqueous solutions of a salt of each metal were added to three aqueous laboratory reagents. The observations made are shown in the table. (a) Suggest the identity of metal X and metal Y. Explain your reasoning. [3] X is ....................................................................................... Y is ....................................................................................... Explanation (b) (i) Using the symbol X for the metal, write the ionic equation for the reaction of the salt of X with dilute sulfuric acid. Include state symbols. [1] (ii) Using the symbol Y for the metal, write the ionic equation for the reaction of the salt of Y with aqueous sodium hydroxide. Include state symbols. [1] © WJEC CBAC Ltd. H2SO4(aq) NaOH(aq) Cl2(aq) Salt of X white precipitate no visible reaction orange/brown solution Salt of Y no visible reaction white precipitate orange/brown solution (B410U10-1) Turn over. B 410 U101 0 9 9 Examiner only (c) (i) Explain what happens when aqueous chlorine is added to solutions of the salts of X and Y. [3] You should include: • the identity of the orange/brown product • the nature of the reaction occurring • a suggested identity for the anion present in both salts (ii) Describe a test that you could carry out on the salt solutions to confirm the identity of this anion. Include the observation expected in the test. [2] © WJEC CBAC Ltd. 10