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1 UNIVERSITY OF MRIGE INTERNTIONL EXMINTIONS International General ertificate of Secondary Education EMISTRY 0620/11 Paper 1 Multiple hoice May/June 2009 * * dditional Materials: RE TESE INSTRUTIONS FIRST Multiple hoice nswer Sheet Soft clean eraser Soft pencil (type or is recommended) 45 Minutes Write in soft pencil. o not use staples, paper clips, highlighters, glue or correction fluid. Write your name, entre number and candidate number on the nswer Sheet in the spaces provided unless this has been done for you. There are forty questions on 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 nswer Sheet. Read the instructions on the nswer Sheet very carefully. Each correct answer will score one mark. mark will not be deducted for a wrong answer. ny rough working should be done in this booklet. copy of the Periodic Table is printed on page 16. You may use a calculator. This document consists of 15 printed pages and 1 blank page. I09 06_0620_01/6RP ULES 2009 [Turn over

2 1 The diagram shows how the molecules in the exhaust gases diffuse into the air. molecules in air 2 molecules in exhaust gases Which statement describes what happens to these molecules next? The molecules fall to the ground because they are heavier than air molecules. The molecules go back together as they cool. The molecules spread further into the air. The molecules stay where they are. 2 student takes 2 g samples of calcium carbonate and adds them to 20 cm 3 samples of dilute hydrochloric acid at different temperatures. She measures how long it takes for the effervescence to stop. Which apparatus does she use? balance clock filter funnel measuring cylinder thermometer ULES /11/M/J/09

3 3 The diagram shows the paper chromatograms of four substances, W, X, Y and Z. 3 Which two substances are pure? W X Y Z W and X W and Y X and Y X and Z 4 n element S has the proton number 18. The next element in the Periodic Table is an element T. Which statement is correct? Element T has one more electron in its outer shell than element S. Element T has one more electron shell than element S. Element T is in the same group of the Periodic Table as element S. Element T is in the same period of the Periodic Table as element S. 5 Which numbers are added together to give the nucleon number of an ion? number of electrons + number of neutrons number of electrons + number of protons number of electrons + number of protons + number of neutrons number of protons + number of neutrons ULES /11/M/J/09 [Turn over

4 4 6 The electronic configuration of an ion is What could this ion be? S 2 a 2+ 7 The diagrams show the structures of two forms, P and Q, of a solid element. P Q What are suitable uses of P and Q, based on their structures? use of solid P use of solid Q drilling drilling drilling lubricating lubricating drilling lubricating lubricating 8 Element V forms an acidic, covalent oxide. Which row in the table shows how many electrons there could be in the outer shell of an atom of V? ULES /11/M/J/09

5 5 9 When sodium chloride is formed from its elements, each chlorine atom 1 one 2. Which words correctly complete gaps 1 and 2? 1 2 gains electron gains proton loses electron loses proton 10 Nitrogen and hydrogen react together to form ammonia. N N 3 When completely converted, 7 tonnes of nitrogen gives 8.5 tonnes of ammonia. ow much nitrogen will be needed to produce 34 tonnes of ammonia? 7 tonnes 8.5 tonnes 28 tonnes 34 tonnes 11 Which relative molecular mass, M r, is not correct for the molecule given? molecule M r ammonia, N 3 17 carbon dioxide, O 2 44 methane, 4 16 oxygen, O luminium is extracted from its oxide by electrolysis. The oxide is dissolved in 1 cryolite and aluminium is deposited at the 2 Which words correctly complete gaps 1 and 2? 1 2 aqueous cathode aqueous anode molten cathode molten anode ULES /11/M/J/09 [Turn over

6 13 Molten lead(ii) bromide is electrolysed as shown. + 6 molten lead(ii) bromide Which ions are discharged at each electrode? positive electrode negative electrode Pb + r 2 Pb 2+ r r 2 Pb + r Pb Which of these elements could be formed at the anode when a molten salt is electrolysed? copper iodine lithium strontium 15 The diagram shows some properties that substances may have. To which labelled part of the diagram does 235 U belong? compound used as an energy source radioactive ULES /11/M/J/09

7 16 Which diagram shows a process in which an endothermic change is taking place? 7 candle ice rocket sodium water water 17 The equation shows a reaction that is reversed by changing the conditions. forward reaction uso O uso O ow can the forward reaction be reversed? by adding water by heating 18 The reactions shown may occur in the air during a thunder storm. N 2 + O 2 2NO 2NO + O 2 2NO 2 NO + O 3 NO 2 + O 2 Which line shows what happens to the reactant molecules in each of these reactions? N 2 NO O 3 oxidised oxidised oxidised oxidised oxidised reduced reduced reduced oxidised reduced reduced reduced ULES /11/M/J/09 [Turn over

8 19 Which does not increase the speed of a reaction? 8 adding a catalyst increasing the concentration of one of the reactants increasing the particle size of one of the reactants increasing the temperature 20 queous sodium hydroxide is added to a solution of a salt. blue precipitate is formed which does not dissolve in excess. luminium foil is added to the mixture and the mixture is warmed. gas is produced that turns damp red litmus paper blue. What is the name of the salt? ammonium nitrate ammonium sulfate copper(ii) nitrate copper(ii) sulfate 21 The graph shows how the p of soil in a field changed over time. t which point was the soil neutral? 11 9 p of soil time 22 n element E is burned in air. white solid oxide is formed. The oxide is tested with damp red litmus paper. The paper turns blue. What is element E? calcium carbon iodine sulfur ULES /11/M/J/09

9 23 Some reactions of a substance, R, are shown in the diagram. 9 magnesium hydrogen substance R reacts with sodium carbonate carbon dioxide copper(ii) oxide copper(ii) sulfate What type of substance is R? an acid a base an element a salt 24 Which statement describes the trends going down group VII of the Periodic Table? The boiling point and melting point both decrease. The boiling point and melting point both increase. The boiling point decreases but the melting point increases. The boiling point increases but the melting point decreases. 25 n inert atmosphere is needed in a lamp to lengthen the useful life of the metal filament. Why is argon, rather than helium, used for this purpose? argon is more abundant in the air argon is less dense than helium ULES /11/M/J/09 [Turn over

10 10 26 The sulfate of element F is green. Which other properties is element F likely to have? density melting point high high high low low high low low 27 Which diagram represents the structure of an alloy? 28 In a blast furnace, iron(iii) oxide is converted to iron and carbon monoxide is converted to carbon dioxide. What happens to each of these reactants? Fe 2 O 3 + 3O 2Fe + 3O 2 oth iron(iii) oxide and carbon monoxide are oxidised. oth iron(iii) oxide and carbon monoxide are reduced. Iron(III) oxide is oxidised and carbon monoxide is reduced. Iron(III) oxide is reduced and carbon monoxide is oxidised. ULES /11/M/J/09

11 29 The table gives information about three different metals G, and J. 11 metal does it react with water steam key G = does react = does not react J What is the order of reactivity of these metals? most reactive least reactive G J G J J G J G 30 Which property do all metals have? They are hard. They conduct electricity. They form acidic oxides. They react with water. 31 Stainless steel is an alloy of iron and other metals. It is strong and does not rust but it costs much more than normal steel. What is not made from stainless steel? cutlery pipes in a chemical factory railway lines saucepans ULES /11/M/J/09 [Turn over

12 12 32 Substance K reacts with sodium carbonate to form a gas. The gas turns limewater cloudy. What is substance K and which process takes place in the reaction? K process ethanol combustion ethanol neutralisation hydrochloric acid combustion hydrochloric acid neutralisation 33 n iron nail is placed in a closed test-tube, containing gas L. The nail rusts. gas L nail water What is gas L? carbon dioxide hydrogen nitrogen oxygen 34 Which statements are correct? 1 arbon monoxide is responsible for the production of acid rain. 2 Oxides of nitrogen are present in car exhausts. 3 Sulfur dioxide can be produced by the combustion of fossil fuels. 1 and 2 only 1 and 3 only 2 and 3 only 1, 2 and 3 ULES /11/M/J/09

13 13 35 The diagram shows stages in the purification of water. Which stage uses chlorine? water at p9 + bacteria + large solids + fine solids water at p9 + bacteria + fine solids water at p9 + bacteria pure water at p7 water at p7 + bacteria 36 Which element is not added to a fertiliser? aluminium nitrogen phosphorus potassium 37 compound has the formula 3 2 = 2. Which row in the table shows the type of compound and the colour change when aqueous bromine is added? type of compound colour change saturated brown to colourless saturated colourless to brown unsaturated brown to colourless unsaturated colourless to brown ULES /11/M/J/09 [Turn over

14 14 38 The diagram shows an industrial process. Substance M is one of the substances produced by this process and is used as aircraft fuel. substance M What is this process and what is substance M? process substance M fractional distillation paraffin fractional distillation petrol thermal decomposition paraffin thermal decomposition petrol 39 The structures of three compounds are shown. Why do these substances all belong to the same homologous series? They all contain an even number of carbon atoms. They all contain the same functional group. They are all hydrocarbons. They are all saturated. 40 Which bond is not in a molecule of ethanoic acid? O =O = O ULES /11/M/J/09

15 15 LNK PGE 0620/11/M/J/09

16 16 T SEE T The Periodic T able of the Element s Group I II III IV V VI VII ydrogen 2 4 e elium 3 7 Li Lithium 4 9 e eryllium oron 6 12 arbon 7 14 N Nitrogen 8 16 O Oxygen 9 19 F Fluorine Ne Neon Na Sodium Mg Magnesium l luminium Si Silicon P Phosphorus S Sulfur l hlorine r rgon K Potassium a alcium Sc Scandium T i T itaniu m V V anadiu m r hromium Mn Manganese Fe Iron o obalt Ni Nickel u opper Zn Zinc Ga Gallium Ge Germanium s rsenic Se Selenium r romine Kr Krypton Rb Rubidium Sr Strontium Y Yttrium Zr Zirconium Nb Niobium 96 Mo Molybdenum T c T echnetiu m Ru Ruthenium Rh Rhodium Pd Palladium g Silver d admium In Indium Sn T i n Sb ntimony T e T elluriu m I Iodine Xe Xenon s aesium Fr Francium a arium 226 Ra Radium 139 La Lanthanum 57 * c ctinium f afnium T a T antalu m W T ungste n Re Rhenium Os Osmium Ir Iridium Pt Platinum u Gold g Mercury T l Thallium Pb Lead i ismuth 84 Po Polonium 85 t statine 86 Rn Radon * Lanthanoid series ctinoid series Key b a X a = relative atomic mass X = atomic symbol b = proton (atomic) number e erium 232 Th Thorium 141 Pr Praseodymium Pa Protactinium Nd Neodymium 238 U Uranium Pm Promethium Np Neptunium Sm Samarium Pu Plutonium Eu Europium m mericium Gd Gadolinium m urium Tb T erbiu m k erkelium y ysprosium f alifornium o olmium Es Einsteinium Er Erbium Fm Fermium Tm Thulium Md Mendelevium Yb Ytterbium No Nobelium Lu Lutetium Lr Lawrencium 103 The volume of one mole of any gas is 2 4 dm 3 at room temperature and pressure ( r.t.p.). Permission to reproduce items where third-party owned material protected by copyright is included has been sought and cleared where possible. Every reasonable effort has been made by the publisher (ULES) to trace copyright holders, but if any items requiring clearance have unwittingly been included, the publisher will be pleased to make amends at the earliest possible opportunity. University of ambridge International Examinations is part of the ambridge ssessment Group. ambridge ssessment is the brand name of University of ambridge Local Examinations Syndicate (ULES), which is itself a department of the University of ambridge. 0620/11/M/J/09