Paper 1 H - SAMPLE SET 1 Q1
1) This question is about halogens and their compounds.
Table 1 shows the boiling points and properties of some of the elements in Group 7 of the periodic table.
Table 1 shows the boiling points and properties of some of the elements in Group 7 of the periodic table.
1.1) Why does iodine have a higher boiling point than chlorine? [1 mark]
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Tick one box.
1.2) Predict the boiling point of bromine. [1 mark]
A redox reaction takes place when aqueous chlorine is added to potassium iodide solution.
The equation for this reaction is:
A redox reaction takes place when aqueous chlorine is added to potassium iodide solution.
The equation for this reaction is:
1.3) Look at Table 1.
What is the colour of the final solution in this reaction? [1 mark]
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What is the colour of the final solution in this reaction? [1 mark]
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1.4) What is the ionic equation for the reaction of chlorine with potassium iodide? [1 mark]
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Tick one box.
1.5) Why does potassium iodide solution conduct electricity? [1 mark]
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Tick one box.
1.6) What are the products of electrolysing potassium iodide solution? [1 mark]
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Tick one box.
(Total for Question 1 = 6 marks)