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Edexcel A-Level Chemistry AS 10.20 Core Practical 7 The Oxidation of Propan 1 Ol to Produce Propanal and Propanoic Acid Questions

Classify the alcohol first, use distillation to retain an aldehyde or reflux to form a carboxylic acid and state the orange-to-green dichromate change.

Syllabus
First assessment 2019
Course
Chemistry YCH11
Level
AS

Exam points

  • State acidified potassium dichromate(VI), heating and the orange-to-green colour change.
  • Distil a primary alcohol product to obtain an aldehyde before further oxidation.
  • Reflux a primary alcohol to a carboxylic acid or oxidise a secondary alcohol to a ketone.

Edexcel A-Level Chemistry AS 10.20 Core Practical 7 The Oxidation of Propan 1 Ol to Produce Propanal and Propanoic Acid Questions question 1

[Maximum number: 4]

Propan-1-ol, propan-2-ol and 2-methylpropan-2-ol are all alcohols commonly used in school laboratories.

Acidified potassium dichromate(VI) is used to oxidise alcohols.

Draw a labelled diagram of the apparatus that is required to prepare and collect a sample of propanal by heating propan-1-ol with acidified potassium dichromate(VI).

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