1-bromopropane Study guides, Class notes & Summaries
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OCR A Level Chemistry A (H432) Chemistry B (H433)
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OCR A Level Chemistry A (H432) Chemistry B (H433)Ethanol is oxidised to ethanoic acid using acidified potassium dichromate(IV) solution. The reaction 
is heated under reflux using the equipment shown in the diagram below. 
What is the reason for heating under reflux? 
A. to ensure even heating 
B. to prevent any substances escaping 
C. to boil the mixture at a higher temperature 
D. to allow efficient mixing 
Your answer 
[1] 
2. A chemist compares the rates of hydrolysis of 1-chloropropane and ...
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OCR A Level Chemistry A (H432) Chemistry B (H433)
- Exam (elaborations) • 18 pages • 2024
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OCR A Level Chemistry A (H432) Chemistry B (H433)Ethanol is oxidised to ethanoic acid using acidified potassium dichromate(IV) solution. The reaction 
is heated under reflux using the equipment shown in the diagram below. 
What is the reason for heating under reflux? 
A. to ensure even heating 
B. to prevent any substances escaping 
C. to boil the mixture at a higher temperature 
D. to allow efficient mixing 
Your answer 
[1] 
2. A chemist compares the rates of hydrolysis of 1-chloropropane and ...
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OCR A Level Chemistry A (H432) Chemistry B (H433) PAG 5: Synthesis of an organic liquid Exam Questions and Mark Scheme
- Exam (elaborations) • 18 pages • 2023
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OCR A Level Chemistry A (H432) Chemistry B (H433) 
PAG 5: Synthesis of an organic liquid 
Practice Exam Questions and Mark Scheme 
1. Ethanol is oxidised to ethanoic acid using acidified potassium dichromate(IV) solution. The reaction 
is heated under reflux using the equipment shown in the diagram below. 
What is the reason for heating under reflux? 
A. to ensure even heating 
B. to prevent any substances escaping 
C. to boil the mixture at a higher temperature 
D. to allow efficient mixing 
Yo...
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OCR A Level Chemistry Exam Questions and Mark Scheme 2
- Exam (elaborations) • 18 pages • 2023
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OCR A Level Chemistry A (H432) Chemistry B (H433) 
PAG 5: Synthesis of an organic liquid 
Practice Exam Questions and Mark Scheme 
1. Ethanol is oxidised to ethanoic acid using acidified potassium dichromate(IV) solution. The reaction 
is heated under reflux using the equipment shown in the diagram below. 
What is the reason for heating under reflux? 
A. to ensure even heating 
B. to prevent any substances escaping 
C. to boil the mixture at a higher temperature 
D. to allow efficient mixing 
Yo...
-
OCR A Level Chemistry A (H432) Chemistry B (H433) PAG 5: Synthesis of an organic liquid Practice Exam Questions and Mark Scheme
- Exam (elaborations) • 23 pages • 2023
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This resource includes exam questions from both Chemistry A and Chemistry B. It is not designed as a topic test but is instead intended as a document to support the teaching and learning of Module 1 – Development of practical skills in chemistry. 1. Ethanol is oxidised to ethanoic acid using acidified potassium dichromate(IV) solution. The reaction is heated under reflux using the equipment shown in the diagram below. What is the reason for heating under reflux? A. to ensure even heating B. to...
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OCR A Level Chemistry A (H432) Chemistry B (H433) PAG 5: Synthesis of an organic liquid Exam Questions and Mark Scheme
- Exam (elaborations) • 18 pages • 2023
-
- $21.49
- + learn more
OCR A Level Chemistry A (H432) Chemistry B (H433) 
PAG 5: Synthesis of an organic liquid 
Practice Exam Questions and Mark Scheme 
1. Ethanol is oxidised to ethanoic acid using acidified potassium dichromate(IV) solution. The reaction 
is heated under reflux using the equipment shown in the diagram below. 
What is the reason for heating under reflux? 
A. to ensure even heating 
B. to prevent any substances escaping 
C. to boil the mixture at a higher temperature 
D. to allow efficient mixing 
Yo...
-
Organic chemistry Prep Exam Questions Fully Solved 2024
- Exam (elaborations) • 6 pages • 2024
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AQA A-LEVEL CHEMISTRY PAPER 2 QUESTION PAPER JUNE 2020
- Exam (elaborations) • 37 pages • 2023
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AQA A-LEVEL CHEMISTRY PAPER 2 QUESTION PAPER JUNE 2020 
 
 
 
 
 
A-level 
CHEMISTRY 
Paper 2 Organic and Physical Chemistry 
 
Monday 8 June 2020	Afternoon	Time allowed: 2 hours 
Materials 
For this paper you must have: 
•	the Periodic Table/Data Booklet, provided as an insert (enclosed) 
•	a ruler with millimetre measurements 
•	a scientific calculator, which you are expected to use where appropriate. 
 
Instructions 
•	Use black ink or black ball-point pen. 
•	Fill in the boxes at...
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AQA A-level CHEMISTRY 7405-1 Paper 1 Inorganic and Physical Chemistry Mark scheme June 2023, Exams for Chemistry
- Exam (elaborations) • 29 pages • 2024
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AQA A-level CHEMISTRY 7405-1 Paper 1 Inorganic and Physical Chemistry Mark scheme June 
2023 Exams for Chemistry 
Mark schemes are prepared by the Lead Assessment Writer and considered, together with the relevant 
questions, by a panel of subject teachers. This mark scheme includes any amendments made at the 
standardisation events which all associates participate in and is the scheme which was used by them in 
this examination. The standardisation process ensures that the mark scheme covers the...
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AQA A-LEVEL CHEMISTRY 7405/1 PAPER 1 INORGANIC PHYSICAL CHEMISTRY MARK SCHEME JUNE 2021 VERSION : 1.0 FINAL
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A-level 
CHEMISTRY 
7405/1 
Paper 1 Inorganic and Physical Chemistry 
Mark scheme 
June 2021 
Version: 1.0 Final 
AQA A-LEVEL CHEMISTRY 7405/1 PAPER 1 INORGANIC PHYSICAL 
CHEMISTRY MARK SCHEME JUNE 2021 VERSION : 1.0 FINAL 
*206A74051/MS* 
AQA A-level CHEMISTRY 7405/1 Paper 1 Inorganic and Physical Chemistry Mark scheme June 
2021 Version: 1.0 Final 
2 
Mark schemes are prepared by the Lead Assessment Writer and considered, together with the relevant 
questions, by a panel of subject teachers. T...
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