Paper 2 style practice paper: Multiple choice (Extended) — question paper

Section A: Multiple-choice questions[20 marks]

Choose one answer for each question. Each question is worth 1 mark.

1. 1

   Which statement explains why a gas diffuses more quickly at a higher temperature?

   1. AIts particles become larger
   2. BIts particles become less massive
   3. CIts particles gain kinetic energy and move faster
   4. DIts particles are attracted to each other more strongly
   ( )
2. 2

   Which particles are found in the nucleus of an atom?

   1. AProtons and neutrons
   2. BElectrons only
   3. CProtons and electrons
   4. DNeutrons and electrons
   ( )
3. 3

   What is the mass of 0.25 mol of carbon dioxide? (Mᵣ of carbon dioxide = 44)

   1. A4.4 g
   2. B11 g
   3. C22 g
   4. D44 g
   ( )
4. 4

   Concentrated aqueous sodium chloride is electrolysed using inert electrodes. Which product forms at the cathode?

   1. AChlorine
   2. BOxygen
   3. CSodium
   4. DHydrogen
   ( )
5. 5

   Which change is endothermic?

   1. AHeating calcium carbonate to decompose it
   2. BBurning methane in oxygen
   3. CNeutralising an acid with an alkali
   4. DAdding sodium to cold water
   ( )
6. 6

   Powdered calcium carbonate reacts faster with dilute hydrochloric acid than the same mass of large lumps. Which statement explains this?

   1. AThe powder has a larger surface area for the acid particles to collide with
   2. BThe powder is a stronger acid than the lumps
   3. CThe powder lowers the activation energy of the reaction
   4. DThe acid becomes more concentrated when powder is used
   ( )
7. 7

   Which oxide reacts with both dilute hydrochloric acid and aqueous sodium hydroxide?

   1. ACarbon dioxide
   2. BCopper(II) oxide
   3. CSulfur dioxide
   4. DAluminium oxide
   ( )
8. 8

   Which statement about the halogens as you go down Group VII is correct?

   1. AThe halogens become more reactive
   2. BThe colour becomes darker
   3. CThe halogens become stronger oxidising agents
   4. DThe melting points decrease
   ( )
9. 9

   Which method is used to extract aluminium from its ore?

   1. AReduction with carbon in a blast furnace
   2. BHeating the ore with hydrogen
   3. CReaction with dilute sulfuric acid
   4. DElectrolysis of the molten ore
   ( )
10. 10

    Which pollutant is the main cause of acid rain?

    1. ACarbon dioxide
    2. BSulfur dioxide
    3. CMethane
    4. DCarbon monoxide
    ( )
11. 11

    Which formula represents an alkene?

    1. AC₂H₄
    2. BCH₄
    3. CC₂H₆
    4. DC₂H₅OH
    ( )
12. 12

    Which technique separates a mixture of two liquids that have different boiling points?

    1. AFiltration
    2. BCrystallisation
    3. CFractional distillation
    4. DAdding a locating agent
    ( )
13. 13

    What is the volume of 0.50 mol of a gas at room temperature and pressure? (1 mol of any gas occupies 24 dm³.)

    1. A6.0 dm³
    2. B12 dm³
    3. C24 dm³
    4. D48 dm³
    ( )
14. 14

    In an exothermic reaction, which statement is correct?

    1. ABond breaking releases energy to the surroundings
    2. BBond forming takes in energy from the surroundings
    3. CThe energy taken in to break bonds is greater than the energy released when bonds form
    4. DThe energy released when bonds form is greater than the energy taken in to break bonds
    ( )
15. 15

    Which statement about the noble gases is correct?

    1. AThey are very reactive metals
    2. BThey form ionic compounds with chlorine
    3. CThey have complete outer shells so they are unreactive
    4. DThey have low boiling points because of strong forces between their atoms
    ( )
16. 16

    Molten lead(II) bromide is electrolysed. Which product is formed at the anode?

    1. ABromine
    2. BLead
    3. CHydrogen
    4. DOxygen
    ( )
17. 17

    Which change slows down the reaction between zinc and dilute hydrochloric acid?

    1. ADiluting the acid with water
    2. BUsing zinc powder instead of a zinc strip
    3. CWarming the reaction mixture
    4. DAdding a few drops of copper(II) sulfate solution
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18. 18

    Which salt is formed when copper(II) oxide reacts with dilute nitric acid?

    1. ACopper(II) chloride
    2. BCopper(II) sulfate
    3. CCopper(II) carbonate
    4. DCopper(II) nitrate
    ( )
19. 19

    Which property makes copper suitable for use as an electrical conductor?

    1. AIts low melting point
    2. BIts high electrical conductivity
    3. CIts high density
    4. DIts ability to react with acids
    ( )
20. 20

    Which gas is produced by the complete combustion of a hydrocarbon in plenty of air?

    1. ACarbon monoxide
    2. BHydrogen
    3. CCarbon dioxide
    4. DSulfur dioxide
    ( )