UNIVERSITY OF CAMBRIDGE INTERNATIONAL EXAMINATIONS International General Certificate of Secondary Education

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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 2010 dditional Materials: Multiple hoice nswer Sheet Soft clean eraser Soft pencil (type or is recommended) 5 Minutes RE TESE INSTRUTIONS FIRST 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. I10 06_0620_11/RP ULES 2010 [Turn over

2 2 1 The diagram shows a cup of tea. Which row describes the water particles in the air above the cup compared with the water particles in the cup? moving faster closer together 2 fruit drink coloured orange contains a dissolved mixture of red and yellow colouring agents. One of these colouring agents is suspected of being illegal. Which method could be used to show the presence of this illegal colouring agent? chromatography distillation evaporation filtration 3 student carries out an experiment to find how fast 3 cm pieces of magnesium ribbon dissolve in 10 cm 3 samples of sulfuric acid at different temperatures. Which piece of apparatus does the student not need? balance measuring cylinder stop-clock thermometer ULES /11/M/J/10

3 Which row shows the change that takes place when element X gains the new particle shown? 3 particle gained change electron an isotope of element X is formed electron the element one place to the right of X in the Periodic Table is formed proton an isotope of element X is formed proton the element one place to the right of X in the Periodic Table is formed 5 The diagram shows an atom. e e key e electron e e nucleus containing nine particles What is the proton number and neutron number of the atom? proton number neutron number The symbols of two atoms may be written as shown X 2 Y Which statement about these atoms is correct? They are different elements because they have different numbers of neutrons. They are different elements because they have different numbers of protons. They are isotopes of the same element because they have the same nucleon number. They are isotopes of the same element because they have the same proton number. ULES /11/M/J/10 [Turn over

4 7 Which name is given to mixtures of metals? alloys compounds ores salts 8 Element X has six electrons in its outer shell. e e key e e e = electron e e ow could the element react? by gaining two electrons to form a positive ion by losing six electrons to form a negative ion by sharing two electrons with two electrons from another element to form two covalent bonds by sharing two electrons with two electrons from another element to form four covalent bonds 9 In which compounds are pairs of electrons shared between atoms? 1 sodium chloride 2 methane 3 lead bromide 1 only 2 only 1 and 3 1, 2 and 3 10 ydrogen and chlorine react as shown. 1 molecule of hydrogen + 1 molecule of chlorine 2 molecules of hydrogen chloride What is the equation for this reaction? 2 + 2l 2l 2 + 2l 2 l l 2 2l 2 + l 2 2 l 2 ULES /11/M/J/10

5 11 The diagram shows apparatus for plating a spoon with silver. 5 spoon metal electrode electrolyte Which statement is not correct? Silver would stick to the spoon because it is a very reactive metal. The electrolyte would be a silver salt dissolved in water. The metal electrode would be made from silver. The spoon would be connected to the negative of the power supply. 12 queous copper(ii) sulfate solution is electrolysed using inert electrodes. opper(ii) ions (u 2+ ), hydrogen ions ( + ), hydroxide ions (O ) and sulfate ions ( SO present in the solution. To which electrodes are the ions attracted during this electrolysis? 2 ) are attracted to anode attracted to cathode u 2+ and + O and u 2+ and 2 SO 2 SO + and O + and O u 2+ and O and 2 SO 2 SO u 2+ and + 13 Three electrolysis cells are set up. Each cell has inert electrodes. The electrolytes are listed below. cell 1 cell 2 cell 3 aqueous sodium chloride concentrated hydrochloric acid molten lead(ii) bromide In which cells is a gas formed at both electrodes? 1 and 2 1 and 3 2 only 3 only ULES /11/M/J/10 [Turn over

6 1 louds are formed when water vapour evaporates from the sea. 6 clouds water vapour sea What is the energy change and what name is given to the type of change when water evaporates? energy change type of change energy given out endothermic energy given out exothermic energy taken in endothermic energy taken in exothermic 15 Which process is not exothermic? burning a fossil fuel obtaining lime from limestone radioactive decay of 235 U reacting hydrogen with oxygen ULES /11/M/J/10

7 7 16 student investigates the rate of reaction between marble chips and hydrochloric acid. The loss in mass of the reaction flask is measured. The graph shows the results of two experiments, P and Q. mass of reaction flask P Q 0 time Which change explains the difference between P and Q? catalyst is added in P. higher temperature is used in P. igger marble chips are used in Q. ydrochloric acid is more concentrated in Q. 17 When pink cobalt(ii) sulfate crystals are heated, they form steam and a blue solid. When water is added to the blue solid, it turns pink and becomes hot. Which terms describe the pink cobalt(ii) sulfate crystals and the reactions? pink cobalt sulfate reactions aqueous irreversible aqueous reversible hydrated irreversible hydrated reversible 18 Iron is extracted from iron oxide using carbon monoxide as shown in the equation. What does the equation show? iron oxide + carbon monoxide iron + carbon dioxide arbon monoxide is oxidised to carbon dioxide. arbon monoxide is reduced to carbon dioxide. Iron is oxidised to iron oxide. Iron oxide is oxidised to iron. ULES /11/M/J/10 [Turn over

8 8 19 queous sodium hydroxide is added to a solid, X, and the mixture is heated. green precipitate is formed and an alkaline gas is given off. Which ions are present in X? + N and Fe 2+ + N and Fe 3+ O and Fe 2+ O and Fe n aqueous solution of the organic compound methylamine has a p greater than 7. Which statement about methylamine is correct? It neutralises an aqueous solution of sodium hydroxide. It reacts with copper(ii) carbonate to give carbon dioxide. It reacts with hydrochloric acid to form a salt. It turns blue litmus red. 21 The positions in the Periodic Table of four elements are shown. Which element is most likely to form an acidic oxide? ULES /11/M/J/10

9 9 22 n excess of copper(ii) oxide is added to dilute sulfuric acid to make crystals of hydrated copper(ii) sulfate. The processes listed may be used to obtain crystals of hydrated copper(ii) sulfate. 1 concentrate the resulting solution 2 filter 3 heat the crystals wash the crystals Which processes are needed and in which order? 1, 2, 3 and 1, 2, and 3 2, 1, 2 and 3 2, 1, 2 and 23 Which is not a property of Group I metals? They are soft and can be cut with a knife. They corrode rapidly when exposed to oxygen in the air. They produce an acidic solution when they react with water. They react rapidly with water producing hydrogen gas. 2 n element melts at 155, has a density of 8.90 g / cm 3 and forms a green chloride. Where in the Periodic Table is this element found? ULES /11/M/J/10 [Turn over

10 25 n element does not conduct electricity and exists as diatomic molecules. 10 In which area of the Periodic Table is the element to be found? 26 Solutions of a halogen and a sodium halide are mixed. Which mixture darkens in colour because a reaction occurs? bromine and sodium chloride bromine and sodium fluoride chlorine and sodium fluoride chlorine and sodium iodide 27 opper, iron and zinc are all used as pure metals. Which of these three metals are also used in alloys? copper iron zinc 28 Some properties of four elements are shown in the table. Which element is a metal? melting point / electrical conductivity when liquid electrical conductivity when solid 7 low low 801 high low 1535 high high 3550 low low ULES /11/M/J/10

11 11 29 student added dilute hydrochloric acid to four metals and recorded the results. Not all of the results are correct. results metal gas given off 1 copper yes 2 iron yes 3 magnesium no zinc yes Which two results are correct? 1 and 3 1 and 2 and 3 2 and 30 The diagram shows the manufacture of steel. gas X waste gases molten iron What is gas X? carbon dioxide chlorine hydrogen oxygen ULES /11/M/J/10 [Turn over

12 12 31 luminium is an important metal with many uses. Some of its properties are listed. 1 It is a good conductor of heat. 2 It is a reactive metal. 3 It has a low density. It has an oxide layer that prevents corrosion. Which set of properties help to explain the use of aluminium for cooking and storing food? 1, 2 and 3 1, 2 and 1, 3 and 2, 3 and 32 Which statements about water are correct? 1 Water is treated with chlorine to kill bacteria. 2 ousehold water may contain salts in solution. 3 Water is used in industry for cooling. Water for household use is filtered to remove soluble impurities. 1, 2 and 3 1 and 2, 3 and 1, 2, 3 and 33 Which compound in polluted air can damage stonework and kill trees? carbon dioxide carbon monoxide lead compounds sulfur dioxide 3 Which statement about methane is not correct? It is a liquid produced by distilling petroleum. It is produced as vegetation decomposes. It is produced by animals such as cows. It is used as a fuel. ULES /11/M/J/10

13 13 35 To grow roses, a fertiliser containing nitrogen, phosphorus and potassium is needed. For the best flowers, the fertiliser should contain a high proportion of potassium. Which fertiliser is best for roses? fertiliser proportion by mass N P K The diagram shows three types of item. cutlery cooking pan instruments used in hospitals Which method of rust prevention can be used for all three types of item? coating with plastic covering with grease galvanising using stainless steel 37 Which structure is incorrect? O O O ULES /11/M/J/10 [Turn over

14 1 38 Which structure shows a compound that belongs to a different homologous series to propane? 39 macromolecule is a very large molecule. Macromolecules can be made by joining smaller molecules together. This is called polymerisation. Which row in the table describes the formation of a polymer? monomer polymer ethane poly(ethane) ethene poly(ethene) ethane poly(ethene) ethene poly(ethane) 0 iesel, petrol and bitumen are all fuels. hydrocarbons. lubricants. waxes. ULES /11/M/J/10

15 15 LNK PGE 0620/11/M/J/10

16 16 T SEE T The Periodic T able of the Element s Group I II III IV V VI VII 0 1 e ydrogen elium Li e N O F Ne Lithium eryllium oron arbon Nitrogen Oxygen Fluorine Neon Na Mg l Si P S l r Sodium Magnesium luminium Silicon Phosphorus Sulfur hlorine rgon K a Sc T i V r Mn Fe o Ni u Zn Ga Ge s Se r Kr Potassium alcium Scandium T itaniu m V anadiu m hromium Manganese Iron obalt Nickel opper Zinc Gallium Germanium rsenic Selenium romine Krypton Rb Sr Y Zr Nb Mo T c Ru Rh Pd g d In Sn Sb T e Rubidium Strontium Yttrium Zirconium Niobium Molybdenum T echnetiu m Ruthenium Rhodium Palladium Silver admium Indium T i n ntimony T elluriu m Iodine Xenon I 131 Xe s a La f T a W Re Os Ir Pt u g T l Pb i Po t Rn aesium arium Lanthanum afnium T antalu m T ungste n Rhenium Osmium Iridium Platinum Gold Mercury Thallium Lead ismuth Polonium statine Radon * Fr Ra c Francium Radium ctinium * Lanthanoid series ctinoid series Key b a X a = relative atomic mass X = atomic symbol b = proton (atomic) number e erium 232 Th Thorium 11 Pr Praseodymium 59 Pa Protactinium 91 1 Nd Neodymium 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 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/10

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egyptigstudentroom.com UNIVERSITY OF MRIGE INTERNTIONL EXMINTIONS International General ertificate of Secondary Education EMISTRY 0620/11 Paper 1 Multiple hoice May/June 2009 *7177477880* dditional Materials: RE TESE INSTRUTIONS