Required practical 6: test for alcohol, aldehyde, alkene and carboxylic acid functional groups.

In the subtopic AS required practical activities, this AQA A-Level Chemistry 7405 learning objective focuses on required practical 6: test for alcohol, aldehyde, alkene and carboxylic acid functional groups. It belongs to AS practical skills and required practical activities, so revision should stay anchored to this exact subtopic rather than drifting into a generic GCSE-level chemistry summary. Approved keywords to use include required practical. Functional group. means a specific group of atoms within a molecule that is responsible for the characteristic chemical reactions of that molecule Avoid the mistake of students often confuse the tests for alcohols and aldehydes, leading to incorrect identification of functional groups; instead, to correctly identify functional groups, remember that alcohols can be tested using acidified potassium dichromate, which turns from orange to green, while aldehydes can be tested using Tollens' reagent, which produces a silver mirror. Always state the test used, the observation, and the conclusion about the functional group present For exam answers, when testing for functional groups, always use the correct reagents and observe the specific color changes or reactions that occur