Carbonyl Compounds: Purifying Organic Compounds

The key practise is purifying organic compounds
The steps to prepare and purify an organic solid include: dissolve impure solid in solvent, recrystallize by cooling to form crystals, and philtre to separate pure crystals from impure solution.
Preparation and purification of organic liquid involve distillation process: heating to vaporise impurities with lower boiling points, then condensing and collecting the pure liquid.
The test for purity of an organic solid utilises a melting point test: a pure compound will melt at a specific temperature, deviation indicates impurity.