The carboxyl group and its relatives
The carboxyl group and its relatives

A carboxylic acid contains the carboxyl group, −COOH-COOH−COOH, usually written as RCOOHRCOOHRCOOH. The acidic hydrogen is the one on the O−HO-HO−H bond, not on the carbon chain.
Step-by-step lessons on Edexcel AS Level Chemistry Carboxylic acids and derivatives. Each one builds up to exam-style questions.