A The flow diagram in Figure 1 shows how water is made...

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CH3FP G/KL/111147/Jun15/E4 (Jun15CH3FP01) General Certificate of Secondary Education Foundation Tier June 2015 Chemistry CH3FP Unit Chemistry C3 Thursday 14 May 2015 9.00 am to 10.00 am For this paper you must have: a ruler the Chemistry Data Sheet (enclosed). You may use a calculator. Time allowed 1 hour Instructions Use black ink or black ball-point pen. Fill in the boxes at the top of this page. Answer all questions. You must answer the questions in the spaces provided. Do not write outside the box around each page or on blank pages. Do all rough work in this book. Cross through any work you do not want to be marked. Information The marks for questions are shown in brackets. The maximum mark for this paper is 60. You are expected to use a calculator where appropriate. You are reminded of the need for good English and clear presentation in your answers. Question 10(b) should be answered in continuous prose. In this question you will be marked on your ability to: – use good English – organise information clearly – use specialist vocabulary where appropriate. Advice In all calculations, show clearly how you work out your answer. Centre Number Candidate Number Surname Other Names Candidate Signature For Examiner’s Use Examiner’s Initials Question Mark 1 2 3 4 5 6 7 8 9 10 TOTAL F A
2 Do not write outside the box (02) G/Jun15/CH3FP Answer all questions in the spaces provided. 1 This question is about drinking water. 1 (a) The flow diagram in Figure 1 shows how water is made suitable for drinking. Figure 1 Water in reservoir Filtered Sterilised Drinking water 1 (a) (i) What is removed when the water is filtered? [1 mark] Tick ( ) one box. Gases Liquids Solids
3 Do not write outside the box 1 (a) (ii) What is used to sterilise the water? [1 mark] Tick ( ) one box. Carbon Chlorine Sodium chloride 1 (a) (iii) Why is the water sterilised? [1 mark] ............................................................................................................................................ ............................................................................................................................................ 1 (b) Water can be purified by distillation. Drinking water is not usually purified by distillation because distillation is expensive. Complete the sentence. [1 mark] .
(03) G/Jun15/CH3FP Turn over 1 (c) Why do some water companies add fluoride to drinking water? [1 mark] ............................................................................................................................................ ............................................................................................................................................ ____ 5 Turn over for the next question
4 (04) G/Jun15/CH3FP Do not write outside the box There are no questions printed on this page DO NOT WRITE ON THIS PAGE ANSWER IN THE SPACES PROVIDED

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