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N5 Practical Experiments
Quiz by Isabel McCluskey
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20 questions
Q.1. The test for oxygen gas is
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30 sec
Q.2. Which of the following terms describe the reaction that has taken place?
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30 sec
Q.3. This table gives information about calcium and calcium chloride. When molten calcium chloride is electrolysed at 800 degrees centigrade, the calcium appears as
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30 sec
Q.4. When hydrogen chloride gas is dissolved in water, a solution containing hydrogen ions and chloride ions is formed. Which equation correctly shows the state symbols for this change?
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30 sec
Q.5. The spectator ions in this reaction are
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30 sec
Q.6. Which of the following shows the metals in order of increasing reactivity?
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30 sec
Q.7. Nitrogen dioxide is a brown coloured gas that is soluble in water and more dense than air. Which of the following diagrams shows the most appropriate method for collecting and measuring the volume of nitrogen dioxide?
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30 sec
Q.8. A solution of a metal chloride burns with a green flame. Which of the following metal ions could be present in the metal chloride? You may wish to use the data booklet to help you.
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30 sec
Q.9. Which of the following salts can be prepared by a precipitation reaction? You may wish to use the data booklet to help you.
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30 sec
Q.10. A solution of accurately known concentration is more commonly known as a
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30 sec
Q.11. From the passage, name the term used to describe a rolled up sheet of graphite?
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30 sec
Q.12. From the passage in Q11, name the metal added to the pillared structure to increase hydrogen storage capacity.
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Q.13. Calculate the number of moles of hydrogen that, researchers claim, can be stored by one litre of this structure.
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Q.14. Chlorine gas can be formed in the laboratory by adding concentrated hydrochloric acid to potassium permanganate. The gas is bubbled through water, to remove any unreacted hydrochloric acid, and then concentrated sulphuric acid to dry it. The chlorine gas is then collected in a gas jar. Which part of the diagram shows where the drying process takes place?
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30 sec
Q.15. A student was asked to carry out an experiment to determine the concentration of a copper (II) sulphate solution. Part of the work card used is shown. Suggest how the student could have best evaporated the solution to dryness.
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Q.16. From Q15, the student found that the 100 cubic centimetres solution contained 3ยท19 g of copper(II) sulphate, CuSO4. Calculate the concentration of the solution in mol/litre.
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30 sec
Q.17. A student makes magnesium sulfate. Name the acid used to make this salt.
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30 sec
Q.18. From Q17, how would the student know when to stop adding magnesium in step 1?
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30 sec
Q.19. From Q17, why is the reaction picture filtered in step 2?
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Q.20. A student prepared a salt. Name steps 2 and 3.
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