A Level Chemistry 9701, topic 11.4

The reactions of chlorine: past paper questions

12 Cambridge A Level Chemistry 9701 questions on The reactions of chlorine (11.4) from 12 papers, 2023 to 2026. Mostly multiple choice. Open the paper or try a question free.

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Questions: 12
Papers: 12
Years: 2023 to 2026
Total marks: 62
Average per question: 5.2 marks
Largest question: 15 marks

By type: Multiple choice 8 · Structured 4

How hard the questions are

Recall2
Apply0
Analyse4
Not banded6

Derived from the command word Cambridge prints in each question, banded by a fixed table beside the syllabus's own definitions. A question printing no command word is unbanded: unknown, not middling.

Command words

stateRecall5 questions
express in clear terms
describeApply3 questions
state the points of a topic / give characteristics and main features
explainAnalyse3 questions
set out purposes or reasons / make the relationships between things evident / provide why and/or how and support with relevant evidence
writeRecall3 questions
completeApply2 questions
constructApply2 questions
convertApply2 questions
defineRecall2 questions
give precise meaning
showApply2 questions
calculateApply1 question
work out from given facts, figures or information

Where the questions come from

By year

20262
20252
20244
20234

By session

May/June6
Oct/Nov6

By paper

Paper 18
Paper 24

Questions on this topic

Showing 10 of 12, spread across the years. Open one to write your answer and have it marked.

Question 22May/June 2026, paper 11Multiple choice1 mark
Chlorine reacts separately with water, cold aqueous sodium hydroxide and hot aqueous sodium hydroxide. Which statement about these reactions is correct?
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Question 21Oct/Nov 2025, paper 12Multiple choice1 mark
In an experiment, $0.600 mol$ of chlorine gas, ${Cl}_{2}$ , is reacted with an excess of hot aqueous sodium hydroxide. One of the products is ${NaClO}_{3}$ . Which mass of ${NaClO}_{3}$ is formed?
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Question 23Oct/Nov 2024, paper 12Multiple choice1 mark
The name 'chlorate' is used for an anion consisting of chlorine and oxygen only.
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Question 11Oct/Nov 2023, paper 11Multiple choice1 mark
$H O C l (a q)$ is the molecule that kills bacteria when chlorine is added to water. The following reaction produces this molecule.
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Question 21May/June 2026, paper 13Multiple choice1 mark
Chlorine gas reacts with hot dilute aqueous sodium hydroxide as shown. $u {Cl}_{2} + v {OH}^{-} \to w {Cl}^{-} + y {ClO}_{3}^{-} + z H_{2} O$ What is the simplest ratio of $w : y$ in the balanced equation?
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Question 19May/June 2025, paper 11Multiple choice1 mark
Which reagent or reagents and conditions will oxidise chlorine, ${Cl}_{2}$ , into a compound containing chlorine in the +5 oxidation state?
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Question 2Oct/Nov 2024, paper 21Structured13 marks
Chlorine is one of the elements in Group 17 of the Periodic Table. Describe the colours of the Group 17 elements, chlorine to iodine, at room temperature.
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Question 3May/June 2023, paper 21Structured15 marks
Chlorine is a very reactive element. Chlorine reacts with silicon to form silicon(IV) chloride. Describe the appearance of silicon(IV) chloride at room temperature and pressure.
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Question 19May/June 2024, paper 12Multiple choice1 mark
Chlorine gas is reacted with cold aqueous sodium hydroxide. Which statement is correct for this reaction?
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Question 2May/June 2023, paper 22Structured13 marks
Chlorine is a reactive element. It forms many compounds. Complete Table 2.1 to show the maximum oxidation number of the elements Na to P in their chlorides.
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