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

In the subtopic A-level 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 A-level practical endorsement 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. Test for alcohols. means a method to identify the presence of alcohols, typically using reagents such as potassium dichromate which changes color from orange to green in the presence of primary or secondary alcohols 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 with Tollens' reagent, which produces a silver mirror. Always state the specific test used and the expected observation For exam answers, when testing for alcohols, aldehydes, alkenes, and carboxylic acids, remember to use appropriate reagents and observe color changes or precipitate formation