CAIE A-Level Chemistry AS 11.4.1 And Interpret Questions
Practise balancing chlorine reactions with cold and hot aqueous alkali and interpreting oxidation-number changes.
- Syllabus
- 2028–2030
- Course
- Chemistry 9701
- Level
- AS
Exam points
- write Cl2 + 2OH− → Cl− + ClO− + H2O for chlorine with cold dilute aqueous alkali
- write 3Cl2 + 6OH− → 5Cl− + ClO3− + 3H2O for chlorine with hot aqueous alkali
- show chlorine is simultaneously reduced from 0 to −1 and oxidised to +1 or +5
CAIE A-Level Chemistry AS 11.4.1 And Interpret Questions question 1
[Maximum number: 1]
Chlorine gas is reacted with cold aqueous sodium hydroxide.
Which statement is correct for this reaction?
A
Chlorine is both oxidised and reduced.
B
Chlorine is neither oxidised nor reduced.
C
Chlorine is oxidised but not reduced.
D
Chlorine is reduced but not oxidised.
A
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