2-bromopropane Study guides, Class notes & Summaries

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 ...

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 ...

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 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...

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...

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...

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...

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...

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...