International General Certificate of Secondary Education UNIVERSITY OF CAMBRIDGE LOCAL EXAMINATIONSSYNDICATE

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1 International General ertificate of Secondary Education UNIVERSITY OF MRIGE LOL EXMINTIONSSYNITE HEMISTRY PPER1 Multiplehoice MY/JUNESESSION2000 dditional materials: Mathematical tables Multiple hoice answer sheet Soft clean eraser Soft pencil (type or H is recommended) 0620/1 45 minutes TIME 45 minutes INSTRUTIONS TO NITES o not open this booklet until you are told to do so. Write your name, entre number and candidate number on the answer sheet in the spaces provided unless this has already been done for you. There are forty questions in this paper. nswer all questions. For each question, there are four possible answers,,, and. hoose the one you consider correct and record your choice in soft pencil on the separate answer sheet. Read very carefully the instructions on the answer sheet. INFORMTION FOR NITES Each correct answer will score one mark. mark will not be deducted for a wrong answer. copy of the Periodic Table is printed on page 16. ny rough working should be done in this booklet. 56 (KN/T) 2000 This question paper consists of 16 printed pages. [Turn over

2 1 In which substance are the particles furthest apart at room temperature? ethanol methane salt sugar 2 The diagram shows a glass containing ice cubes in a fizzy drink. ice cubes glass drink bubbles What has particles that are close together but free to move past each other? bubbles drink glass ice cubes 3 Which diagram shows how sodium should be stored? cold water sodium - - ""--""'- - - boiled water sodium c oil sodium dry air sodium

3 4 hromatography is used to test three drinks for the presence of harmful colourings. The results are shown in the diagram Fizzo Juicy Sparkle harmful drink colourings. Which of the drinks contain harmful colouring? Fizzo only Fizzo and Sparkle Juicy only Juicyand Sparkle 5 The diagram shows an outline of the Periodic Table. - X Which diagram shows an atom of element X? c = an = a = a proton 1- \ = a nucleus

4 6 One isotope of cadmium is 1 d. Which particle is another isotope of cadmium? protons neutrons substance has an ionic structure that can be represented as shown G$G 8080 What could the substance be? chlorine diamond sodium chloride water 8 Elements X and Y combine to form a liquid with a boiling point of 114 Which line in the table is correct? type of element X Y type of bonding metal metal covalent metal non-metal ionic non-metal non-metal covalent. non-metal non-metal Ionic

5 9 The equation shows the reaction between hydrogen molecules and chlorine molecules. equation H2 + l2 2Hl diagrams of molecules E]+-- Which box shows the product molecules? I88l [E c 10 Phosphorus and chlorine combine to form phosphorus chloride. j)..? One molecule of P4 + six molecules of four molecules of phosphorus chloride What is the formula of a phosphorus chloride molecule? P P c P2 P4l12 11 The symbols of three elements are 1H, 2He, 3Li Which compound can be formed from these three elements? HHe HHe2 c LiH LiH3

6 12 The diagram shows a cell used for the industrial electrolysis of concentrated aqueous sodium chloride. concentrated aqueous sodium chloride ---=;. gas X t 00 ' 0 0 gas V t 0 0 oggo 0 anode + - cathode - solution Z porous membrane What are the products X, V, and Z? X V Z chlorine hydrogen sodium hydroxide chlorine sodium hydroxide hydrogen hydrogen chlorine sodium hydroxide hydrogen sodium hydroxide chlorine 13 Which method is used to obtain pure aluminium from aluminium oxide? dissolving the oxide in an acid electrolysing the oxide heating the oxide in air reducing the oxide with carbon 14 utane, ethanol and hydrogen are fuels. Which substances produce both carbon dioxide and water when used as fuels? - butane ethanol hydrogen V V )( V )( V )( v V V V V

7 15 What happens in an exothermic reaction? catalyst is used. gas is given off. Heat is produced. There is a colour change. 16 The diagrams show an experiment using copper(ii) sulphate... steam 1 water0 0!!ii blue crystals white crystals white crystals H blue crystals 1 heat What do these diagrams represent? a redox reaction a reversible reaction crystallisation purification 17 Which change shows an oxidation? NO2. N2O4 I 0! N2.. NO c

8 18 The diagram shows some of the advantages of using hydrogen as a fuel. 1 can be distributed easily using a gas main 2 can be made from water using solar power? What is a third advantage? urning hydrogen does not produce pollution. urning hydrogen does not produce condensation. Hydrogen is not biodegradable. Hydrogen is not a compound. 19 The equation represents a reaction. gno3(aq) + Hl(aq) HNO3(aq) + gl(s), What is the residue when the reaction mixture is filtered? gl gno3 c Hl HNO3 20 Which two elements are correctly listed to show the natures of their oxides? forms an acidic oxide forms a basic oxide magnesium sulphur phosphorus sulphur sulphur phosphorus sulphur magnesium 21 The hydroxides of aluminium, chromium and iron are insoluble. queous solutions of the chlorides of these metals are tested with aqueous sodium hydroxide. Which solutions form a coloured precipitate? ll:3(aq) rl:3(aq) Fel:3(aq) X./././ X./././ X./././ 0620/1 800

9 22 Which facts about the elements are all correct? Mg manganese hard, silvery metal in Group II Ne neon reactive monatomic gas in Group 0 c Fe iron soft metal which rusts a transition metal l chlorine green diatomic gas in Group VII 23 The table shows the melting points and boiling points of some Group I elements. Group I element melting point/ boiling pointj lithium sodium potassium 64 Y rubidium X 688 What is the value for X and for Y? X Y

10 24 Five elements have proton (atomic) numbers 2, 4, 6, 8 and 10. What are the proton numbers of the two least reactive of these elements? 2 and 4 2 and 10 c 4 and 6 6 and What are common physical properties of a metal wire? conductorof electricity ease of bending good good good poor (wire breaks) poor good poor poor (wirebreaks) 26 When steam is passed over a heated metal P, a gas Q is formed. metal P steam.. t t heat gas Q burning What are P and Q? metal P gas a copper hydrogen iron hydrogen magnesium oxygen zinc oxygen 27 reaction that occurs in the blast furnace for extracting iron may be written as shown. haematite + carbon monoxide ---7 iron + X What is X? carbon dioxide coke limestone slag

11 28 The diagram shows a container for 'take-away' foods. cardboard top metal tray The tray of the container is lightweight and resists corrosion. Which metal is the most suitable for the tray? aluminium brass copper steel 29 What is removed in the filter bed during the purification of the water supply? bacteria soluble salts fluorides suspended solids 30 Some air is polluted with sulphur dioxide. sample of the polluted air is passed through water to dissolve the sulphur dioxide. What is the ph of the solution formed and how does it affect litmus paper? ph effect on litmus paper above 7 blue to red above 7 red to blue below 7 blue to red below 7 red to blue 31 Which gas, emitted from a car exhaust, is an atmospheric pollutant? argon carbon monoxide nitrogen oxygen 0620/1 SOO [Turn over

12 32 Which statement does not apply to oxygen? It is used in the manufacture of ammonia. It is used to help patients breathe in hospital. It reacts with iron during rusting. It reacts with acetylene in the welding of metals. 33 The table shows the ph range over which a plant takes up nutrients from fertilis nutrient ph range nitrogen 6.0 to 8.0 phosphorus 6.5 to 7.5 potassium 7.0 to 8.0 Over which range of ph does the plant take up all three nutrients? 5.0 to to 6.5 c 7.0 to to The diagram represents the combustion of methane. + p.-cw. Q cw +/'0 What are P and Q? P Q hydrogen carbon dioxide hydrogen water oxygen carbon dioxide oxygen water

13 35 The diagram shows a lime kiln. rotatingkiln -. WI m...l.8..m. r r t heat heat heat What are X and Y? X Y lime limestone lime slaked lime limestone lime slaked lime lime 36 For which structure is the correct name shown? H H H H H H I I 1' I I I I H--H H-- H---H H---O-H I I -H I I I I H H H H H H ethene ethanol ethene ethanol

14 37 The diagrams show different liquids. Which liquid is not made directly from petroleum? c. 38 The graph shows the way in which the boiling points of some alkanes depend on the number of carbon atoms in their molecules boiling point/ e fi I' I' I I I I' I' -- ".. I' " ",. ' number of carbon atoms in one molecule of the alkane From!he graph, what is likely to be the boiling point of propane? -80oe -40oe c ooe +40oe

15 39 hydrocarbon reacts as described. 1 2 It decolourises aqueous bromine. It forms an addition polymer. Which of these reactions are properties of an alkene? 1 only 2 only c both 1 and 2 neither 1 nor 2 40 The equation for the manufacture of ethanol is as shown. Three possible reaction conditions are listed. e2h4 + H2O e2hsoh 1 2 using a temperature using a temperature of 80 e of 250 e 3 using a catalyst of phosphoric acid Which combination of these conditions is used? temperature catalyst present 80e no 80e yes 250 e no 250 e yes