Question paper (Foundation) : Paper 1 - Sample set 1

1 SPECIMEN MATERIAL GCSE chemistry Foundation tier Paper 1F Specimen 2018 Time allowed: 1 hour 45 minutes Materials For this Paper you must have: a ruler a calculator the periodic table (enclosed). Instructions Answer all questions in the spaces provided. Do all rough work in this book. Cross through any work you do not want to be marked. Information There are 100 marks available on this Paper . The marks for questions are shown in brackets. You are expected to use a calculator where appropriate.

2 You are reminded of the need for good English and clear presentation in your answers. When answering questions and you need to make sure that your answer: - is clear, logical, sensibly structured - fully meets the requirements of the Question - shows that each separate point or step supports the overall answer. Advice In all calculations, show clearly how you work out your answer. F Please write clearly, in block capitals. Centre number Candidate number Surname Forename(s) Candidate signature 2 SPECIMEN MATERIAL 0 1 This Question is about different substances and their structures.

3 0 1 . 1 Draw one line from each statement to the diagram which shows the structure. [4 marks] 3 SPECIMEN MATERIAL Turn over Figure 1 shows the structure of an element. Figure 1 0 1 . 2 What is the name of this element? [1 mark] Tick one box. Carbon Chloride Nitrogen Xenon 0 1.

4 3 Why does this element conduct electricity? [1 mark] Tick one box. It has delocalised electrons It contains hexagonal rings It has weak forces between the layers It has ionic bonds Question 1 continues on the next page 4 SPECIMEN MATERIAL Figure 2 shows the structure of an alloy. Figure 2 0 1 . 4 Explain why this alloy is harder than the pure metal Y.

5 [2 marks] 0 1 . 5 What percentage of the atoms in the alloys are atoms of X? [2 marks] 5 SPECIMEN MATERIAL Turn over 0 1 . 6 What type of substance is an alloy? [1 mark] Tick one box. Compound Element Mixture Turn over for the next Question 6 SPECIMEN MATERIAL 0 2 A student investigated the reactivity of three different metals.

6 This is the method used. 1. Place 1 g of metal powder in a test tube. 2. Add 10 cm3 of metal sulfate. 3. Wait 1 minute and observe. 4. Repeat using the other metals and metal sulfates. The student placed a tick in Table 1 if there was a reaction and a cross if there was no reaction. Table 1 Zinc Copper Magnesium Copper sulfate x Magnesium sulfate x x x Zinc sulfate x x 0 2 . 1 What is the dependent variable in the investigation? [1 mark] Tick one box.

7 Time taken Type of metal Volume of metal sulfate Whether there was a reaction or not 0 2 . 2 Give one observation the student could make that shows there is a reaction between zinc and copper sulfate. [1 mark] 7 SPECIMEN MATERIAL Turn over 0 2 . 3 The student used measuring instruments to measure some of the variables.

8 Draw one line from each variable to the measuring instrument used to measure the variable. [2 marks] 0 2 . 4 Use the results shown in Table 1 to place zinc, copper and magnesium in order of reactivity. [1 mark] Most reactive Least reactive 0 2.

9 5 Suggest one reason why the student should not use sodium in this investigation. [1 mark] 8 SPECIMEN MATERIAL 0 2 . 6 Which metal is found in the Earth as the metal itself? [1 mark] Tick one box. Calcium Gold Lithium Potassium 0 2.

10 7 Iron is found in the Earth as iron oxide (Fe2O3). Iron oxide is reduced to produce iron. Balance the equation for the reaction. [1 mark] ___Fe2O3 + ___C ___Fe + ___ CO2 9 SPECIMEN MATERIAL Turn over 0 2 . 8 Name the element used to reduce iron oxide. [1 mark] 0 2 . 9 What is meant by reduction? [1 mark] Tick one box.