IGCSE chemistry 1 2022 Leave a Comment / By Admin / November 15, 2024 Welcome to your IGCSE chemistry 1 2022 1. Question 1 Which change of state is an exothermic process? condensation sublimation melting evaporation None 2. Question 2 In which state does 1 dm3 of methane contain the most particles? liquid gas at room temperature solid gas at 100 °C None 3. Question 3 Which dye on the chromatogram is a pure substance? C A D B None 4. Question 4 Which piece of apparatus is used to measure exactly 5.00 cm3 of a liquid? 25 cm3 pipette 5 cm3 beaker 50 cm3 burette 10 cm3 measuring cylinder None 5. Question 5 Fermentation of sugar produces a mixture of ethanol solution and solid yeast. How is the solid yeast removed from the mixture? crystallisation fractional distillation distillation filtration None 6. Question 6 Matter exists as elements, compounds and mixtures. Which row identifies an element, a compound and a mixture? C A B D None 7. Question 7 Which pair of statements about diamond and graphite is correct? 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 Diamond has covalent bonds. Graphite has ionic bonds Diamond is hard with a high melting point. Graphite is soft with a low melting point None 8. 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 electrons It contains 28 protons It contains 24 neutrons It contains 52 neutrons None 9. 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? D A B C None 10. 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 2 and 3 1 and 4 1 and 2 3 and 4 None 11. Question 11 The structure of a molecule of a compound is shown. What is the formula of this compound? C8H3O C3H8O C8HO3 C3H7O None 12. 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? 2.2 g 2.8 g 4.4 g 44 g None 13. 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? D C B A None 14. Question 14 An object is electroplated with silver using an aqueous silver salt as the electrolyte. Which row is correct? D B A C None 15. Question 15 Which row describes the changes that occur in an endothermic reaction? B D C A None 16. Question 16 Which statement about fuels is correct? Heat energy is only produced by burning fuels Uranium is burned in air to produce energy Methane is a good fuel because it produces only water when burned Hydrogen is used as a fuel although it is difficult to store None 17. Question 17 A sequence of changes involving sulfur is shown. Which row describes the changes? C B A D None 18. 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 50 cm3 25 cm3 15 cm3 None 19. Question 19 The equation for the reaction between magnesium and copper(II) oxide is shown. Mg + CuO MgO + Cu Which substance is oxidised? Cu CuO MgO Mg None 20. 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 B A D None 21. 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? calcium chloride calcium iodide zinc chloride zinc iodide None 22. Question 22 Which statement about the Periodic Table is correct? Elements with similar chemical properties are placed in groups Elements with the highest atomic number in each period are metallic Elements with similar physical properties are placed in periods Elements with the lowest group numbers are non-metals None 23. Question 23 Part of the Periodic Table is shown. Which element is a soft solid that reacts violently with cold water? D A B C None 24. 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? transition elements Group VIII Group I Group VII None 25. Question 25 Some properties of the elements in Group VII of the Periodic Table are shown.Which statement is correct? Bromine is a brown solid at room temperature Fluorine is a pale yellow gas at room temperature Astatine is a black liquid at room temperature Iodine is a brown liquid at room temperature None 26. Question 26 Which process is used to obtain the metal calcium from its ore? thermal decomposition oxidation with carbon electrolysis reduction with carbon None 27. Question 27 Which row links the property of a metal to its use? A B C D None 28. Question 28 The table gives some properties of an element.Which other property does this element have? forms an acidic oxide brittle acts as a catalyst highly reactive with water None 29. Question 29 A metal reacts vigorously with cold water. Which statement about the metal is correct? It is below magnesium in the reactivity series It does not react with dilute acids It is above hydrogen in the reactivity series Its oxide can be reduced with carbon None 30. Question 30 Which row describes the colour changes when water is added to anhydrous cobalt(II) chloride and anhydrous copper(II) sulfate? A B C D None 31. 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? B A C D None 32. Question 32 Which information about carbon dioxide and methane is correct? B C D A None 33. Question 33 Which row identifies uses of sulfur? B A C D None 34. 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. 1 and 3 1 and 4 only 3 and 4 1, 2 and 4 None 35. Question 35 Which structure is correctly named? D B C A None 36. Question 36 The fractional distillation of petroleum produces a series of fractions with different uses. Which row identifies a use for a fraction? A C B D None 37. 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. C 2 only 1 and 2 1 and 3 3 only None 38. Question 38 Which statement about ethane is correct? Its molecular formula is C2H4 It burns in excess oxygen to form water and carbon dioxide It decolourises bromine water Its atoms are joined together by ionic bonding None 39. 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. 1 and 3 1 only 1 and 2 2 and 3 None 40. 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? 1 and 4 2 and 3 1 and 3 2 and 4 None Time's upTime is Up!
