IGCSE chemistry 1 2022 Leave a Comment / By Admin / November 15, 2024 Welcome to your IGCSE chemistry 1 2022 Question 1 Which change of state is an exothermic process? condensation sublimation melting evaporation None Question 2 In which state does 1 dm3 of methane contain the most particles? gas at room temperature gas at 100 °C liquid solid None Question 3 Which dye on the chromatogram is a pure substance? A D C B None Question 4 Which piece of apparatus is used to measure exactly 5.00 cm3 of a liquid? 50 cm3 burette 5 cm3 beaker 25 cm3 pipette 10 cm3 measuring cylinder None Question 5 Fermentation of sugar produces a mixture of ethanol solution and solid yeast. How is the solid yeast removed from the mixture? filtration distillation fractional distillation crystallisation None Question 6 Matter exists as elements, compounds and mixtures. Which row identifies an element, a compound and a mixture? D C A B None Question 7 Which pair of statements about diamond and graphite is correct? Diamond is hard with a high melting point. Graphite is soft with a low melting point Diamond has covalent bonds. Graphite has ionic bonds Diamond and graphite are both pure carbon. They are both macromolecules Diamond and graphite can both be used as electrodes. Graphite is also used as a lubrican None Question 8 An isotope of chromium is represented by 24/ 52Cr. Which statement about an atom of this isotope of chromium is correct? It contains 24 neutrons It contains 52 neutrons It contains 24 electrons It contains 28 protons None Question 9 Sodium is in Group I of the Periodic Table and chlorine is in Group VII. Which row describes what happens when sodium bonds ionically with chlorine? B A C D None Question 10 Caesium fluoride is an ionic compound. Which statements about caesium fluoride are correct?1 It conducts electricity when solid2 It has a high melting point3 It is soluble in water4 It is highly volatile 3 and 4 1 and 4 2 and 3 1 and 2 None Question 11 The structure of a molecule of a compound is shown. What is the formula of this compound? C8H3O C3H7O C3H8O C8HO3 None Question 12 Calcium carbonate, CaCO3, reacts with dilute hydrochloric acid to produce carbon dioxide. The equation for the reaction is shown. The relative formula mass of calcium carbonate is 100. CaCO3 + 2HCl CaCl 2 + H2O + CO2 10 g of calcium carbonate is reacted with an excess of dilute hydrochloric acid. Which mass of carbon dioxide is produced? 2.8 g 44 g 4.4 g 2.2 g None Question 13 Molten sodium chloride and concentrated aqueous sodium chloride are electrolysed using platinum electrodes. What are the products at the negative electrode (cathode) in each electrolysis? A C D B None Question 14 An object is electroplated with silver using an aqueous silver salt as the electrolyte. Which row is correct? D A C B None Question 15 Which row describes the changes that occur in an endothermic reaction? C D A B None Question 16 Which statement about fuels is correct? Uranium is burned in air to produce energy Methane is a good fuel because it produces only water when burned Heat energy is only produced by burning fuels Hydrogen is used as a fuel although it is difficult to store None Question 17 A sequence of changes involving sulfur is shown. Which row describes the changes? A D B C None Question 18 Magnesium is added to dilute hydrochloric acid. 25 cm3 of gas is given off in the first 30 s of the reaction. The experiment is repeated at a lower temperature. All other reaction conditions are the same. Which volume of gas is produced in the first 30 s of this reaction? 30 cm3 15 cm3 25 cm3 50 cm3 None Question 19 The equation for the reaction between magnesium and copper(II) oxide is shown. Mg + CuO MgO + Cu Which substance is oxidised? MgO CuO Cu Mg None Question 20 Methyl orange is added to dilute hydrochloric acid and to aqueous sodium hydroxide. What is the colour of the methyl orange in each solution? C D B A None Question 21 Compound X is dissolved in water and two separate samples of the solution are tested. The results of the tests are shown.What is compound X? zinc chloride zinc iodide calcium iodide calcium chloride None Question 22 Which statement about the Periodic Table is correct? Elements with similar physical properties are placed in periods Elements with the highest atomic number in each period are metallic Elements with similar chemical properties are placed in groups Elements with the lowest group numbers are non-metals None Question 23 Part of the Periodic Table is shown. Which element is a soft solid that reacts violently with cold water? C B D A None Question 24 Three properties of element X are listed. It contains atoms with a full outer shell of electrons. It is monoatomic. It is unreactive. In which part of the Periodic Table is the element placed? Group VIII Group I Group VII transition elements None Question 25 Some properties of the elements in Group VII of the Periodic Table are shown.Which statement is correct? Fluorine is a pale yellow gas at room temperature Bromine is a brown solid at room temperature Iodine is a brown liquid at room temperature Astatine is a black liquid at room temperature None Question 26 Which process is used to obtain the metal calcium from its ore? reduction with carbon thermal decomposition electrolysis oxidation with carbon None Question 27 Which row links the property of a metal to its use? B C D A None Question 28 The table gives some properties of an element.Which other property does this element have? highly reactive with water forms an acidic oxide brittle acts as a catalyst None Question 29 A metal reacts vigorously with cold water. Which statement about the metal is correct? It does not react with dilute acids Its oxide can be reduced with carbon It is below magnesium in the reactivity series It is above hydrogen in the reactivity series None Question 30 Which row describes the colour changes when water is added to anhydrous cobalt(II) chloride and anhydrous copper(II) sulfate? D B A C None Question 31 The gases produced by a burning fuel are passed through solution Z using the apparatus shown. The fuel contains compounds of sulfur.Which row identifies solution Z and the result obtained when the fuel contains compounds of sulfur? A B C D None Question 32 Which information about carbon dioxide and methane is correct? A B C D None Question 33 Which row identifies uses of sulfur? C D A B None Question 34 Which statements about lime are correct?1 Lime is made by heating calcium carbonate (limestone).2 Lime is used to desulfurise flue gases.3 Lime is used to treat alkaline soil.4 The chemical name for lime is calcium oxide. 3 and 4 1 and 4 only 1, 2 and 4 1 and 3 None Question 35 Which structure is correctly named? D A C B None Question 36 The fractional distillation of petroleum produces a series of fractions with different uses. Which row identifies a use for a fraction? D C A B None Question 37 Ethene and propene are both members of the same homologous series. Which statements explain why ethene and propene have similar chemical properties? 1 They are both hydrocarbons.2 They are both made by cracking.3 They have the same functional group. 1 and 3 C 2 only 3 only 1 and 2 None Question 38 Which statement about ethane is correct? Its molecular formula is C2H4 It burns in excess oxygen to form water and carbon dioxide Its atoms are joined together by ionic bonding It decolourises bromine water None Question 39 Which statements about ethanol are correct? 1 Ethanol is used as a solvent.2 Ethanol can be made directly from ethane.3 Ethanol is a covalent compound. 2 and 3 1 and 2 1 only 1 and 3 None Question 40 Polymers are long-chain molecules made from small molecules linked together. Four polymers or types of polymer are listed. 1 carbohydrates2 nylon3 proteins4Terylene Which polymers or types of polymer are synthetic? 2 and 3 1 and 4 2 and 4 1 and 3 None Time's upTime is Up!
